• #<Class:0x007f253c11b260>#block (2 levels) in _app_views_students__form_html_erb__1836058608593846465_69899384504340 (pry):7
  • SimpleForm::FormBuilder#input $GemPath0/gems/simple_form-3.5.0/lib/simple_form/form_builder.rb:115
    • SimpleForm::FormBuilder#find_input $GemPath0/gems/simple_form-3.5.0/lib/simple_form/form_builder.rb:501
      • SimpleForm::FormBuilder#find_attribute_column $GemPath0/gems/simple_form-3.5.0/lib/simple_form/form_builder.rb:551
        • Student#respond_to? $GemPath0/gems/activerecord-5.0.4/lib/active_record/attribute_methods.rb:219
          • Student#respond_to? $GemPath0/gems/activemodel-5.0.4/lib/active_model/attribute_methods.rb:449
            • Kernel#respond_to? $GemPath0/gems/activemodel-5.0.4/lib/active_model/attribute_methods.rb:450
          • Symbol#to_s $GemPath0/gems/activerecord-5.0.4/lib/active_record/attribute_methods.rb:228
          • Kernel#class $GemPath0/gems/activerecord-5.0.4/lib/active_record/attribute_methods.rb:235
          • Student.column_names $GemPath0/gems/activerecord-5.0.4/lib/active_record/model_schema.rb:388
          • Array#include? $GemPath0/gems/activerecord-5.0.4/lib/active_record/attribute_methods.rb:235
        • Student#has_attribute? $GemPath0/gems/activerecord-5.0.4/lib/active_record/attribute_methods.rb:251
          • Symbol#to_s $GemPath0/gems/activerecord-5.0.4/lib/active_record/attribute_methods.rb:252
          • ActiveRecord::AttributeSet#key? $GemPath0/gems/activerecord-5.0.4/lib/active_record/attribute_set.rb:28
            • Hash#key? $GemPath0/gems/activerecord-5.0.4/lib/active_record/attribute_set.rb:29
            • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-5.0.4/lib/active_record/attribute_set.rb:11
            • ActiveRecord::Attribute::FromDatabase#initialized? $GemPath0/gems/activerecord-5.0.4/lib/active_record/attribute.rb:87
        • Symbol#to_s $GemPath0/gems/simple_form-3.5.0/lib/simple_form/form_builder.rb:553
        • Student#type_for_attribute $GemPath0/gems/activerecord-5.0.4/lib/active_record/model_schema.rb:156
          • Kernel#class $GemPath0/gems/activerecord-5.0.4/lib/active_record/model_schema.rb:156
          • Student.type_for_attribute $GemPath0/gems/activerecord-5.0.4/lib/active_record/model_schema.rb:368
            • Student.attribute_types $GemPath0/gems/activerecord-5.0.4/lib/active_record/model_schema.rb:352
              • Student.load_schema $GemPath0/gems/activerecord-5.0.4/lib/active_record/model_schema.rb:450
                • Student.schema_loaded? $GemPath0/gems/activerecord-5.0.4/lib/active_record/model_schema.rb:446
      • SimpleForm::FormBuilder#default_input_type $GemPath0/gems/simple_form-3.5.0/lib/simple_form/form_builder.rb:515
        • Symbol#to_s $GemPath0/gems/simple_form-3.5.0/lib/simple_form/form_builder.rb:517
        • SimpleForm::FormBuilder#find_custom_type $GemPath0/gems/simple_form-3.5.0/lib/simple_form/form_builder.rb:540
          • SimpleForm.input_mappings $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/module/attribute_accessors.rb:60
        • ActiveModel::Type::String#try $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/object/try.rb:5
          • Array#first $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/object/try.rb:6
          • Kernel#respond_to? $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/object/try.rb:6
          • ActiveModel::Type::String#try! $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/object/try.rb:9
            • Kernel#public_send $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/object/try.rb:17
              • ActiveModel::Type::String#type $GemPath0/gems/activemodel-5.0.4/lib/active_model/type/immutable_string.rb:4
        • Symbol#to_s $GemPath0/gems/simple_form-3.5.0/lib/simple_form/form_builder.rb:525
        • Regexp#=== $GemPath0/gems/simple_form-3.5.0/lib/simple_form/form_builder.rb:526
        • Regexp#=== $GemPath0/gems/simple_form-3.5.0/lib/simple_form/form_builder.rb:527
        • Regexp#=== $GemPath0/gems/simple_form-3.5.0/lib/simple_form/form_builder.rb:528
        • Regexp#=== $GemPath0/gems/simple_form-3.5.0/lib/simple_form/form_builder.rb:529
        • Regexp#=== $GemPath0/gems/simple_form-3.5.0/lib/simple_form/form_builder.rb:530
        • Regexp#=== $GemPath0/gems/simple_form-3.5.0/lib/simple_form/form_builder.rb:531
        • SimpleForm::FormBuilder#file_method? $GemPath0/gems/simple_form-3.5.0/lib/simple_form/form_builder.rb:546
          • Student#respond_to? $GemPath0/gems/activerecord-5.0.4/lib/active_record/attribute_methods.rb:219
            • Student#respond_to? $GemPath0/gems/activemodel-5.0.4/lib/active_model/attribute_methods.rb:449
              • Kernel#respond_to? $GemPath0/gems/activemodel-5.0.4/lib/active_model/attribute_methods.rb:450
            • Symbol#to_s $GemPath0/gems/activerecord-5.0.4/lib/active_record/attribute_methods.rb:228
            • Kernel#class $GemPath0/gems/activerecord-5.0.4/lib/active_record/attribute_methods.rb:235
            • Student.column_names $GemPath0/gems/activerecord-5.0.4/lib/active_record/model_schema.rb:388
            • Array#include? $GemPath0/gems/activerecord-5.0.4/lib/active_record/attribute_methods.rb:235
            • Student#has_attribute? $GemPath0/gems/activerecord-5.0.4/lib/active_record/attribute_methods.rb:251
              • String#to_s $GemPath0/gems/activerecord-5.0.4/lib/active_record/attribute_methods.rb:252
              • ActiveRecord::AttributeSet#key? $GemPath0/gems/activerecord-5.0.4/lib/active_record/attribute_set.rb:28
                • Hash#key? $GemPath0/gems/activerecord-5.0.4/lib/active_record/attribute_set.rb:29
                • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-5.0.4/lib/active_record/attribute_set.rb:11
                • ActiveRecord::Attribute::FromDatabase#initialized? $GemPath0/gems/activerecord-5.0.4/lib/active_record/attribute.rb:87
          • Student#__temp__e616d656 $GemPath0/gems/activerecord-5.0.4/lib/active_record/attribute_methods/read.rb:34
            • Student#_read_attribute $GemPath0/gems/activerecord-5.0.4/lib/active_record/attribute_methods/read.rb:65
              • String#to_s $GemPath0/gems/activerecord-5.0.4/lib/active_record/attribute_methods/read.rb:66
              • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-5.0.4/lib/active_record/attribute_set.rb:43
                • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-5.0.4/lib/active_record/attribute_set.rb:11
                • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-5.0.4/lib/active_record/attribute.rb:36
      • Kernel#block_given? $GemPath0/gems/simple_form-3.5.0/lib/simple_form/form_builder.rb:505
      • SimpleForm::FormBuilder#find_mapping $GemPath0/gems/simple_form-3.5.0/lib/simple_form/form_builder.rb:572
        • SimpleForm::FormBuilder#discovery_cache $GemPath0/gems/simple_form-3.5.0/lib/simple_form/form_builder.rb:607
          • SimpleForm.cache_discovery $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/module/attribute_accessors.rb:60
      • Class#new $GemPath0/gems/simple_form-3.5.0/lib/simple_form/form_builder.rb:508
        • SimpleForm::Inputs::StringInput#initialize $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:56
          • SimpleForm::Inputs::StringInput#initialize $GemPath0/gems/simple_form-3.5.0/lib/simple_form/components/html5.rb:4
          • Kernel#dup $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:59
            • Kernel#initialize_dup $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:59
              • Hash#initialize_copy $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:59
          • Hash#delete $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:64
          • Kernel#class $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:65
          • SimpleForm::Inputs::StringInput.default_options -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/class/attribute.rb:90
            • SimpleForm::Inputs::StringInput.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/class/attribute.rb:90
          • Hash#reverse_merge! $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/reverse_merge.rb:17
            • Hash#merge! $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/reverse_merge.rb:19
          • SimpleForm::Inputs::StringInput#calculate_required $GemPath0/gems/simple_form-3.5.0/lib/simple_form/helpers/required.rb:10
            • NilClass#nil? $GemPath0/gems/simple_form-3.5.0/lib/simple_form/helpers/required.rb:11
            • SimpleForm::Inputs::StringInput#has_validators? $GemPath0/gems/simple_form-3.5.0/lib/simple_form/helpers/validators.rb:4
              • SimpleForm::Inputs::StringInput#object $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:33
              • Kernel#class $GemPath0/gems/simple_form-3.5.0/lib/simple_form/helpers/validators.rb:5
              • Student.respond_to? $GemPath0/gems/activerecord-5.0.4/lib/active_record/dynamic_matchers.rb:3
                • ActiveRecord::DynamicMatchers::Method.match $GemPath0/gems/activerecord-5.0.4/lib/active_record/dynamic_matchers.rb:31
                  • Enumerable#find $GemPath0/gems/activerecord-5.0.4/lib/active_record/dynamic_matchers.rb:32
                    • Array#each $GemPath0/gems/activerecord-5.0.4/lib/active_record/dynamic_matchers.rb:32
                      • ActiveRecord::DynamicMatchers::Method.block in match $GemPath0/gems/activerecord-5.0.4/lib/active_record/dynamic_matchers.rb:32
                        • ActiveRecord::DynamicMatchers::FindBy.pattern $GemPath0/gems/activerecord-5.0.4/lib/active_record/dynamic_matchers.rb:36
                        • Symbol#=~ $GemPath0/gems/activerecord-5.0.4/lib/active_record/dynamic_matchers.rb:32
                      • ActiveRecord::DynamicMatchers::Method.block in match $GemPath0/gems/activerecord-5.0.4/lib/active_record/dynamic_matchers.rb:32
                        • ActiveRecord::DynamicMatchers::FindByBang.pattern $GemPath0/gems/activerecord-5.0.4/lib/active_record/dynamic_matchers.rb:36
                        • Symbol#=~ $GemPath0/gems/activerecord-5.0.4/lib/active_record/dynamic_matchers.rb:32
                • Kernel#respond_to? $GemPath0/gems/activerecord-5.0.4/lib/active_record/dynamic_matchers.rb:8
            • SimpleForm::Inputs::StringInput#required_by_validators? $GemPath0/gems/simple_form-3.5.0/lib/simple_form/helpers/required.rb:20
              • SimpleForm::Inputs::StringInput#attribute_validators $GemPath0/gems/simple_form-3.5.0/lib/simple_form/helpers/validators.rb:10
                • SimpleForm::Inputs::StringInput#object $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:33
                • Kernel#class $GemPath0/gems/simple_form-3.5.0/lib/simple_form/helpers/validators.rb:11
                • Student.validators_on $GemPath0/gems/activemodel-5.0.4/lib/active_model/validations.rb:253
                  • Enumerable#flat_map $GemPath0/gems/activemodel-5.0.4/lib/active_model/validations.rb:254
                    • Array#each $GemPath0/gems/activemodel-5.0.4/lib/active_model/validations.rb:254
                      • Student.block in validators_on $GemPath0/gems/activemodel-5.0.4/lib/active_model/validations.rb:254
                        • Student._validators -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/class/attribute.rb:90
                          • Student.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/class/attribute.rb:90
                        • Symbol#to_sym $GemPath0/gems/activemodel-5.0.4/lib/active_model/validations.rb:255
              • SimpleForm::Inputs::StringInput#reflection_validators $GemPath0/gems/simple_form-3.5.0/lib/simple_form/helpers/validators.rb:14
              • Array#any? $GemPath0/gems/simple_form-3.5.0/lib/simple_form/helpers/required.rb:21
          • SimpleForm.additional_classes_for $GemPath0/gems/simple_form-3.5.0/lib/simple_form.rb:245
            • SimpleForm.generate_additional_classes_for $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/module/attribute_accessors.rb:60
            • Array#include? $GemPath0/gems/simple_form-3.5.0/lib/simple_form.rb:246
            • SimpleForm::Inputs::StringInput#block in initialize $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:71
              • SimpleForm::Inputs::StringInput#additional_classes $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:93
                • SimpleForm::Inputs::StringInput#required_class $GemPath0/gems/simple_form-3.5.0/lib/simple_form/helpers/required.rb:30
                  • SimpleForm::Inputs::StringInput#required_field? $GemPath0/gems/simple_form-3.5.0/lib/simple_form/helpers/required.rb:6
                • SimpleForm::Inputs::StringInput#readonly_class $GemPath0/gems/simple_form-3.5.0/lib/simple_form/helpers/readonly.rb:6
                  • SimpleForm::Inputs::StringInput#has_readonly? $GemPath0/gems/simple_form-3.5.0/lib/simple_form/helpers/readonly.rb:10
                • SimpleForm::Inputs::StringInput#disabled_class $GemPath0/gems/simple_form-3.5.0/lib/simple_form/helpers/disabled.rb:10
                  • SimpleForm::Inputs::StringInput#has_disabled? $GemPath0/gems/simple_form-3.5.0/lib/simple_form/helpers/disabled.rb:6
                • Array#compact $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:94
          • Kernel#dup $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:73
            • Kernel#initialize_dup $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:73
              • Array#initialize_copy $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:73
          • SimpleForm.input_class $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/module/attribute_accessors.rb:60
          • SimpleForm::Inputs::StringInput#html_options_for $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:132
            • Symbol#to_s $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:133
            • String#intern $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:133
            • Hash#key? $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:135
          • Kernel#tap $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:78
            • SimpleForm::Inputs::StringInput#block in initialize $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:78
              • SimpleForm::Inputs::StringInput#has_readonly? $GemPath0/gems/simple_form-3.5.0/lib/simple_form/helpers/readonly.rb:10
              • SimpleForm::Inputs::StringInput#has_disabled? $GemPath0/gems/simple_form-3.5.0/lib/simple_form/helpers/disabled.rb:6
              • SimpleForm::Inputs::StringInput#has_autofocus? $GemPath0/gems/simple_form-3.5.0/lib/simple_form/helpers/autofocus.rb:6
    • SimpleForm::FormBuilder#find_wrapper $GemPath0/gems/simple_form-3.5.0/lib/simple_form/form_builder.rb:597
      • SimpleForm::FormBuilder#find_wrapper_mapping $GemPath0/gems/simple_form-3.5.0/lib/simple_form/form_builder.rb:589
        • SimpleForm.wrapper_mappings $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/module/attribute_accessors.rb:60
    • SimpleForm::Wrappers::Root#render $GemPath0/gems/simple_form-3.5.0/lib/simple_form/wrappers/root.rb:13
      • Hash#reverse_merge! $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/reverse_merge.rb:17
        • Hash#merge! $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/reverse_merge.rb:19
      • SimpleForm::Wrappers::Root#render $GemPath0/gems/simple_form-3.5.0/lib/simple_form/wrappers/many.rb:22
        • String#html_safe $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:257
          • Class#new $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:258
            • ActiveSupport::SafeBuffer#initialize $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:174
              • String#initialize $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:176
        • Array#each $GemPath0/gems/simple_form-3.5.0/lib/simple_form/wrappers/many.rb:26
          • SimpleForm::Wrappers::Root#block in render $GemPath0/gems/simple_form-3.5.0/lib/simple_form/wrappers/many.rb:26
            • SimpleForm::Wrappers::Leaf#render $GemPath0/gems/simple_form-3.5.0/lib/simple_form/wrappers/leaf.rb:11
              • Kernel#method $GemPath0/gems/simple_form-3.5.0/lib/simple_form/wrappers/leaf.rb:12
              • Method#arity $GemPath0/gems/simple_form-3.5.0/lib/simple_form/wrappers/leaf.rb:14
              • Method#call $GemPath0/gems/simple_form-3.5.0/lib/simple_form/wrappers/leaf.rb:19
                • SimpleForm::Inputs::StringInput#html5 $GemPath0/gems/simple_form-3.5.0/lib/simple_form/components/html5.rb:8
                  • SimpleForm::Inputs::StringInput#input_html_required_option $GemPath0/gems/simple_form-3.5.0/lib/simple_form/components/html5.rb:23
                    • NilClass#nil? $GemPath0/gems/simple_form-3.5.0/lib/simple_form/components/html5.rb:24
                    • SimpleForm::Inputs::StringInput#has_required? $GemPath0/gems/simple_form-3.5.0/lib/simple_form/components/html5.rb:31
                      • SimpleForm::Inputs::StringInput#required_field? $GemPath0/gems/simple_form-3.5.0/lib/simple_form/helpers/required.rb:6
                  • SimpleForm::Inputs::StringInput#input_html_aria_required_option $GemPath0/gems/simple_form-3.5.0/lib/simple_form/components/html5.rb:27
                    • NilClass#nil? $GemPath0/gems/simple_form-3.5.0/lib/simple_form/components/html5.rb:28
                    • SimpleForm::Inputs::StringInput#has_required? $GemPath0/gems/simple_form-3.5.0/lib/simple_form/components/html5.rb:31
                      • SimpleForm::Inputs::StringInput#required_field? $GemPath0/gems/simple_form-3.5.0/lib/simple_form/helpers/required.rb:6
                  • SimpleForm::Inputs::StringInput#has_errors? $GemPath0/gems/simple_form-3.5.0/lib/simple_form/components/errors.rb:12
                    • SimpleForm::Inputs::StringInput#object $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:33
                    • SimpleForm::Inputs::StringInput#object $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:33
                    • Student#respond_to? $GemPath0/gems/activerecord-5.0.4/lib/active_record/attribute_methods.rb:219
                      • Student#respond_to? $GemPath0/gems/activemodel-5.0.4/lib/active_model/attribute_methods.rb:449
                        • Kernel#respond_to? $GemPath0/gems/activemodel-5.0.4/lib/active_model/attribute_methods.rb:450
                      • Symbol#to_s $GemPath0/gems/activerecord-5.0.4/lib/active_record/attribute_methods.rb:228
                      • Kernel#class $GemPath0/gems/activerecord-5.0.4/lib/active_record/attribute_methods.rb:235
                      • Student.column_names $GemPath0/gems/activerecord-5.0.4/lib/active_record/model_schema.rb:388
                      • Array#include? $GemPath0/gems/activerecord-5.0.4/lib/active_record/attribute_methods.rb:235
                    • SimpleForm::Inputs::StringInput#errors $GemPath0/gems/simple_form-3.5.0/lib/simple_form/components/errors.rb:32
                      • SimpleForm::Inputs::StringInput#errors_on_attribute $GemPath0/gems/simple_form-3.5.0/lib/simple_form/components/errors.rb:40
                        • SimpleForm::Inputs::StringInput#object $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:33
                        • Student#errors $GemPath0/gems/activemodel-5.0.4/lib/active_model/validations.rb:300
                        • ActiveModel::Errors#[] $GemPath0/gems/activemodel-5.0.4/lib/active_model/errors.rb:172
                          • Symbol#to_sym $GemPath0/gems/activemodel-5.0.4/lib/active_model/errors.rb:173
                      • SimpleForm::Inputs::StringInput#errors_on_association $GemPath0/gems/simple_form-3.5.0/lib/simple_form/components/errors.rb:48
                      • Array#compact $GemPath0/gems/simple_form-3.5.0/lib/simple_form/components/errors.rb:33
                    • Array#present? $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/object/blank.rb:21
                      • Array#empty? $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/object/blank.rb:22
          • SimpleForm::Wrappers::Root#block in render $GemPath0/gems/simple_form-3.5.0/lib/simple_form/wrappers/many.rb:26
          • SimpleForm::Wrappers::Root#block in render $GemPath0/gems/simple_form-3.5.0/lib/simple_form/wrappers/many.rb:26
            • SimpleForm::Wrappers::Leaf#render $GemPath0/gems/simple_form-3.5.0/lib/simple_form/wrappers/leaf.rb:11
              • Kernel#method $GemPath0/gems/simple_form-3.5.0/lib/simple_form/wrappers/leaf.rb:12
              • Method#arity $GemPath0/gems/simple_form-3.5.0/lib/simple_form/wrappers/leaf.rb:14
              • Method#call $GemPath0/gems/simple_form-3.5.0/lib/simple_form/wrappers/leaf.rb:19
                • SimpleForm::Inputs::StringInput#maxlength $GemPath0/gems/simple_form-3.5.0/lib/simple_form/components/maxlength.rb:5
                  • SimpleForm::Inputs::StringInput#maximum_length_from_validation $GemPath0/gems/simple_form-3.5.0/lib/simple_form/components/maxlength.rb:12
                    • Kernel#is_a? $GemPath0/gems/simple_form-3.5.0/lib/simple_form/components/maxlength.rb:14
                    • Kernel#is_a? $GemPath0/gems/simple_form-3.5.0/lib/simple_form/components/maxlength.rb:14
                    • SimpleForm::Inputs::StringInput#find_length_validator $GemPath0/gems/simple_form-3.5.0/lib/simple_form/components/minlength.rb:22
                      • SimpleForm::Inputs::StringInput#find_validator $GemPath0/gems/simple_form-3.5.0/lib/simple_form/helpers/validators.rb:39
                        • SimpleForm::Inputs::StringInput#has_validators? $GemPath0/gems/simple_form-3.5.0/lib/simple_form/helpers/validators.rb:4
                        • SimpleForm::Inputs::StringInput#attribute_validators $GemPath0/gems/simple_form-3.5.0/lib/simple_form/helpers/validators.rb:10
                          • SimpleForm::Inputs::StringInput#object $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:33
                          • Kernel#class $GemPath0/gems/simple_form-3.5.0/lib/simple_form/helpers/validators.rb:11
                          • Student.validators_on $GemPath0/gems/activemodel-5.0.4/lib/active_model/validations.rb:253
                            • Enumerable#flat_map $GemPath0/gems/activemodel-5.0.4/lib/active_model/validations.rb:254
                              • Array#each $GemPath0/gems/activemodel-5.0.4/lib/active_model/validations.rb:254
                                • Student.block in validators_on $GemPath0/gems/activemodel-5.0.4/lib/active_model/validations.rb:254
                                  • Student._validators -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/class/attribute.rb:90
                                    • Student.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/class/attribute.rb:90
                                  • Symbol#to_sym $GemPath0/gems/activemodel-5.0.4/lib/active_model/validations.rb:255
                        • Enumerable#find $GemPath0/gems/simple_form-3.5.0/lib/simple_form/helpers/validators.rb:40
                          • Array#each $GemPath0/gems/simple_form-3.5.0/lib/simple_form/helpers/validators.rb:40
                    • SimpleForm::Inputs::StringInput#maximum_length_value_from $GemPath0/gems/simple_form-3.5.0/lib/simple_form/components/maxlength.rb:39
                  • SimpleForm::Inputs::StringInput#limit $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:103
                    • SimpleForm::Inputs::StringInput#decimal_or_float? $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:118
                      • ActiveModel::Type::String#type $GemPath0/gems/activemodel-5.0.4/lib/active_model/type/immutable_string.rb:4
                      • ActiveModel::Type::String#type $GemPath0/gems/activemodel-5.0.4/lib/active_model/type/immutable_string.rb:4
                    • SimpleForm::Inputs::StringInput#column_limit $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:109
          • SimpleForm::Wrappers::Root#block in render $GemPath0/gems/simple_form-3.5.0/lib/simple_form/wrappers/many.rb:26
            • SimpleForm::Wrappers::Leaf#render $GemPath0/gems/simple_form-3.5.0/lib/simple_form/wrappers/leaf.rb:11
              • Kernel#method $GemPath0/gems/simple_form-3.5.0/lib/simple_form/wrappers/leaf.rb:12
              • Method#arity $GemPath0/gems/simple_form-3.5.0/lib/simple_form/wrappers/leaf.rb:14
              • Method#call $GemPath0/gems/simple_form-3.5.0/lib/simple_form/wrappers/leaf.rb:19
                • SimpleForm::Inputs::StringInput#minlength $GemPath0/gems/simple_form-3.5.0/lib/simple_form/components/minlength.rb:5
                  • SimpleForm::Inputs::StringInput#minimum_length_from_validation $GemPath0/gems/simple_form-3.5.0/lib/simple_form/components/minlength.rb:12
                    • Kernel#is_a? $GemPath0/gems/simple_form-3.5.0/lib/simple_form/components/minlength.rb:14
                    • Kernel#is_a? $GemPath0/gems/simple_form-3.5.0/lib/simple_form/components/minlength.rb:14
                    • SimpleForm::Inputs::StringInput#find_length_validator $GemPath0/gems/simple_form-3.5.0/lib/simple_form/components/minlength.rb:22
                      • SimpleForm::Inputs::StringInput#find_validator $GemPath0/gems/simple_form-3.5.0/lib/simple_form/helpers/validators.rb:39
                        • SimpleForm::Inputs::StringInput#has_validators? $GemPath0/gems/simple_form-3.5.0/lib/simple_form/helpers/validators.rb:4
                        • SimpleForm::Inputs::StringInput#attribute_validators $GemPath0/gems/simple_form-3.5.0/lib/simple_form/helpers/validators.rb:10
                          • SimpleForm::Inputs::StringInput#object $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:33
                          • Kernel#class $GemPath0/gems/simple_form-3.5.0/lib/simple_form/helpers/validators.rb:11
                          • Student.validators_on $GemPath0/gems/activemodel-5.0.4/lib/active_model/validations.rb:253
                            • Enumerable#flat_map $GemPath0/gems/activemodel-5.0.4/lib/active_model/validations.rb:254
                              • Array#each $GemPath0/gems/activemodel-5.0.4/lib/active_model/validations.rb:254
                                • Student.block in validators_on $GemPath0/gems/activemodel-5.0.4/lib/active_model/validations.rb:254
                                  • Student._validators -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/class/attribute.rb:90
                                    • Student.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/class/attribute.rb:90
                                  • Symbol#to_sym $GemPath0/gems/activemodel-5.0.4/lib/active_model/validations.rb:255
                        • Enumerable#find $GemPath0/gems/simple_form-3.5.0/lib/simple_form/helpers/validators.rb:40
                          • Array#each $GemPath0/gems/simple_form-3.5.0/lib/simple_form/helpers/validators.rb:40
                    • SimpleForm::Inputs::StringInput#minimum_length_value_from $GemPath0/gems/simple_form-3.5.0/lib/simple_form/components/minlength.rb:39
                  • SimpleForm::Inputs::StringInput#limit $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:103
                    • SimpleForm::Inputs::StringInput#decimal_or_float? $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:118
                      • ActiveModel::Type::String#type $GemPath0/gems/activemodel-5.0.4/lib/active_model/type/immutable_string.rb:4
                      • ActiveModel::Type::String#type $GemPath0/gems/activemodel-5.0.4/lib/active_model/type/immutable_string.rb:4
                    • SimpleForm::Inputs::StringInput#column_limit $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:109
          • SimpleForm::Wrappers::Root#block in render $GemPath0/gems/simple_form-3.5.0/lib/simple_form/wrappers/many.rb:26
            • SimpleForm::Wrappers::Leaf#render $GemPath0/gems/simple_form-3.5.0/lib/simple_form/wrappers/leaf.rb:11
              • Kernel#method $GemPath0/gems/simple_form-3.5.0/lib/simple_form/wrappers/leaf.rb:12
              • Method#arity $GemPath0/gems/simple_form-3.5.0/lib/simple_form/wrappers/leaf.rb:14
              • Method#call $GemPath0/gems/simple_form-3.5.0/lib/simple_form/wrappers/leaf.rb:19
                • SimpleForm::Inputs::StringInput#placeholder $GemPath0/gems/simple_form-3.5.0/lib/simple_form/components/placeholders.rb:5
                  • SimpleForm::Inputs::StringInput#placeholder_text $GemPath0/gems/simple_form-3.5.0/lib/simple_form/components/placeholders.rb:10
                    • Kernel#is_a? $GemPath0/gems/simple_form-3.5.0/lib/simple_form/components/placeholders.rb:12
                    • SimpleForm::Inputs::StringInput#translate_from_namespace $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:173
                      • SimpleForm::Inputs::StringInput#lookup_model_names $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:33
                        • SimpleForm::FormBuilder#lookup_model_names $GemPath0/gems/simple_form-3.5.0/lib/simple_form/form_builder.rb:437
                      • Kernel#dup $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:174
                        • Kernel#initialize_dup $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:174
                          • Array#initialize_copy $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:174
                      • Array#join $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:178
                      • Array#shift $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:179
                      • SimpleForm::Inputs::StringInput#lookup_action $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:33
                        • SimpleForm::FormBuilder#lookup_action $GemPath0/gems/simple_form-3.5.0/lib/simple_form/form_builder.rb:448
                      • SimpleForm::Inputs::StringInput#reflection_or_attribute_name $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:127
                      • Symbol#to_s $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:181
                      • String#intern $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:181
                      • SimpleForm::Inputs::StringInput#reflection_or_attribute_name $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:127
                      • Symbol#to_s $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:182
                      • String#intern $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:182
                      • SimpleForm::Inputs::StringInput#lookup_action $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:33
                        • SimpleForm::FormBuilder#lookup_action $GemPath0/gems/simple_form-3.5.0/lib/simple_form/form_builder.rb:448
                      • SimpleForm::Inputs::StringInput#reflection_or_attribute_name $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:127
                      • Symbol#to_s $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:184
                      • String#intern $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:184
                      • SimpleForm::Inputs::StringInput#reflection_or_attribute_name $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:127
                      • Symbol#to_s $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:185
                      • String#intern $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:185
                      • Array#shift $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:188
                      • SimpleForm::Inputs::StringInput#i18n_scope $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:208
                        • SimpleForm.i18n_scope $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/module/attribute_accessors.rb:60
                      • Symbol#to_s $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:188
                      • String#intern $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:188
                      • I18n.translate $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:144
                        • Array#last $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                        • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                        • Array#pop $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                        • Kernel#dup $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                          • Kernel#initialize_dup $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                            • Hash#initialize_copy $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                        • Array#shift $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:146
                        • I18n.config $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:17
                          • #<Class:Thread>#current $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                          • Thread#[] $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                        • ActionView::I18nProxy#backend $GemPath0/gems/i18n-0.8.4/lib/i18n/config.rb:18
                        • Hash#delete $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:148
                        • I18n.config $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:17
                          • #<Class:Thread>#current $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                          • Thread#[] $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                        • ActionView::I18nProxy#locale $GemPath0/gems/actionview-5.0.4/lib/action_view/rendering.rb:14
                          • I18n::Config#locale $GemPath0/gems/i18n-0.8.4/lib/i18n/config.rb:7
                            • I18n::Config#default_locale $GemPath0/gems/i18n-0.8.4/lib/i18n/config.rb:28
                        • Hash#delete $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:149
                        • Hash#delete $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:149
                        • I18n.enforce_available_locales! $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:282
                          • I18n.config $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:17
                            • #<Class:Thread>#current $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                            • Thread#[] $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                          • ActionView::I18nProxy#enforce_available_locales $GemPath0/gems/i18n-0.8.4/lib/i18n/config.rb:134
                          • I18n.locale_available? $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:277
                            • I18n.config $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:17
                              • #<Class:Thread>#current $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                              • Thread#[] $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                            • ActionView::I18nProxy#available_locales_set $GemPath0/gems/i18n-0.8.4/lib/i18n/config.rb:48
                            • Set#include? /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/set.rb:232
                        • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:152
                        • Kernel#catch $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:154
                          • I18n.block in translate $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:154
                            • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:155
                            • I18n::Backend::Simple#translate $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:24
                              • Kernel#nil? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:26
                              • I18n::Backend::Simple#lookup $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:70
                                • I18n::Backend::Simple#initialized? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:23
                                • I18n.normalize_keys $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:265
                                  • I18n.default_separator $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:30
                                    • I18n.config $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:17
                                      • #<Class:Thread>#current $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                      • Thread#[] $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                    • ActionView::I18nProxy#default_separator $GemPath0/gems/i18n-0.8.4/lib/i18n/config.rb:68
                                  • I18n.normalize_key $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:324
                                    • I18n.normalized_key_cache $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:337
                                  • Array#concat $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:269
                                  • I18n.normalize_key $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:324
                                    • I18n.normalized_key_cache $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:337
                                  • Array#concat $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:270
                                  • I18n.normalize_key $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:324
                                    • I18n.normalized_key_cache $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:337
                                  • Array#concat $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:271
                                • I18n::Backend::Simple#translations $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:61
                                • Enumerable#inject $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:74
                                  • Array#each $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:74
                                    • I18n::Backend::Simple#block in lookup $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:74
                                      • Symbol#to_sym $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:75
                                      • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:76
                                      • Hash#has_key? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:76
                                      • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:78
                                    • I18n::Backend::Simple#block in lookup $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:74
                                      • Symbol#to_sym $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:75
                                      • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:76
                                      • Hash#has_key? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:76
                              • NilClass#nil? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:28
                              • Hash#key? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:28
                              • I18n::Backend::Simple#default $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:101
                                • Kernel#dup $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:102
                                  • Kernel#initialize_dup $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:102
                                    • Hash#initialize_copy $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:102
                                • Hash#reject $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:102
                                  • I18n::Backend::Simple#block in default $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:102
                                  • I18n::Backend::Simple#block in default $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:102
                                • Module#=== $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:104
                                • Array#each $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:105
                                  • I18n::Backend::Simple#block in default $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:105
                                    • I18n::Backend::Simple#resolve $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:117
                                      • Kernel#catch $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:119
                                        • I18n::Backend::Simple#block in resolve $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:119
                                          • Module#=== $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:121
                                          • Hash#merge $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:122
                                            • Kernel#initialize_dup $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:122
                                              • Hash#initialize_copy $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:122
                                          • I18n.translate $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:144
                                            • Array#last $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                                            • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                                            • Array#pop $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                                            • Kernel#dup $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                                              • Kernel#initialize_dup $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                                                • Hash#initialize_copy $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                                            • Array#shift $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:146
                                            • I18n.config $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:17
                                              • #<Class:Thread>#current $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                              • Thread#[] $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                            • ActionView::I18nProxy#backend $GemPath0/gems/i18n-0.8.4/lib/i18n/config.rb:18
                                            • Hash#delete $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:148
                                            • Hash#delete $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:149
                                            • I18n.enforce_available_locales! $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:282
                                              • I18n.config $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:17
                                                • #<Class:Thread>#current $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                                • Thread#[] $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                              • ActionView::I18nProxy#enforce_available_locales $GemPath0/gems/i18n-0.8.4/lib/i18n/config.rb:134
                                              • I18n.locale_available? $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:277
                                                • I18n.config $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:17
                                                  • #<Class:Thread>#current $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                                  • Thread#[] $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                                • ActionView::I18nProxy#available_locales_set $GemPath0/gems/i18n-0.8.4/lib/i18n/config.rb:48
                                                • Set#include? /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/set.rb:232
                                            • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:152
                                            • Kernel#catch $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:154
                                              • I18n.block in translate $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:154
                                                • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:155
                                                • I18n::Backend::Simple#translate $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:24
                                                  • Kernel#nil? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:26
                                                  • I18n::Backend::Simple#lookup $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:70
                                                    • I18n::Backend::Simple#initialized? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:23
                                                    • I18n.normalize_keys $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:265
                                                      • I18n.default_separator $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:30
                                                        • I18n.config $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:17
                                                          • #<Class:Thread>#current $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                                          • Thread#[] $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                                        • ActionView::I18nProxy#default_separator $GemPath0/gems/i18n-0.8.4/lib/i18n/config.rb:68
                                                      • I18n.normalize_key $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:324
                                                        • I18n.normalized_key_cache $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:337
                                                      • Array#concat $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:269
                                                      • I18n.normalize_key $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:324
                                                        • I18n.normalized_key_cache $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:337
                                                      • Array#concat $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:270
                                                      • I18n.normalize_key $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:324
                                                        • I18n.normalized_key_cache $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:337
                                                      • Array#concat $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:271
                                                    • I18n::Backend::Simple#translations $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:61
                                                    • Enumerable#inject $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:74
                                                      • Array#each $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:74
                                                        • I18n::Backend::Simple#block in lookup $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:74
                                                          • Symbol#to_sym $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:75
                                                          • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:76
                                                          • Hash#has_key? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:76
                                                          • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:78
                                                        • I18n::Backend::Simple#block in lookup $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:74
                                                          • Symbol#to_sym $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:75
                                                          • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:76
                                                          • Hash#has_key? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:76
                                                  • NilClass#nil? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:28
                                                  • Hash#key? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:28
                                                  • I18n::Backend::Simple#resolve $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:117
                                                    • Kernel#catch $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:119
                                                      • I18n::Backend::Simple#block in resolve $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:119
                                                        • Module#=== $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:121
                                                        • Module#=== $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:123
                                                    • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:130
                                                  • NilClass#nil? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:34
                                                  • Hash#key? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:35
                                                  • Hash#key? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:35
                                                  • Class#new $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:36
                                                    • I18n::MissingTranslation#initialize $GemPath0/gems/i18n-0.8.4/lib/i18n/exceptions.rb:45
                                                      • Kernel#dup $GemPath0/gems/i18n-0.8.4/lib/i18n/exceptions.rb:46
                                                        • Kernel#initialize_dup $GemPath0/gems/i18n-0.8.4/lib/i18n/exceptions.rb:46
                                                          • Hash#initialize_copy $GemPath0/gems/i18n-0.8.4/lib/i18n/exceptions.rb:46
                                                      • Hash#each $GemPath0/gems/i18n-0.8.4/lib/i18n/exceptions.rb:47
                                                        • I18n::MissingTranslation#block in initialize $GemPath0/gems/i18n-0.8.4/lib/i18n/exceptions.rb:47
                                                          • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/exceptions.rb:47
                                                  • Kernel#throw $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:36
                                            • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:161
                                            • I18n.handle_exception $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:308
                                              • Kernel#throw $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:313
                                      • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:130
                                  • I18n::Backend::Simple#block in default $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:105
                                    • I18n::Backend::Simple#resolve $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:117
                                      • Kernel#catch $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:119
                                        • I18n::Backend::Simple#block in resolve $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:119
                                          • Module#=== $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:121
                                          • Hash#merge $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:122
                                            • Kernel#initialize_dup $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:122
                                              • Hash#initialize_copy $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:122
                                          • I18n.translate $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:144
                                            • Array#last $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                                            • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                                            • Array#pop $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                                            • Kernel#dup $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                                              • Kernel#initialize_dup $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                                                • Hash#initialize_copy $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                                            • Array#shift $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:146
                                            • I18n.config $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:17
                                              • #<Class:Thread>#current $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                              • Thread#[] $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                            • ActionView::I18nProxy#backend $GemPath0/gems/i18n-0.8.4/lib/i18n/config.rb:18
                                            • Hash#delete $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:148
                                            • Hash#delete $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:149
                                            • I18n.enforce_available_locales! $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:282
                                              • I18n.config $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:17
                                                • #<Class:Thread>#current $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                                • Thread#[] $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                              • ActionView::I18nProxy#enforce_available_locales $GemPath0/gems/i18n-0.8.4/lib/i18n/config.rb:134
                                              • I18n.locale_available? $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:277
                                                • I18n.config $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:17
                                                  • #<Class:Thread>#current $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                                  • Thread#[] $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                                • ActionView::I18nProxy#available_locales_set $GemPath0/gems/i18n-0.8.4/lib/i18n/config.rb:48
                                                • Set#include? /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/set.rb:232
                                            • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:152
                                            • Kernel#catch $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:154
                                              • I18n.block in translate $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:154
                                                • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:155
                                                • I18n::Backend::Simple#translate $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:24
                                                  • Kernel#nil? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:26
                                                  • I18n::Backend::Simple#lookup $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:70
                                                    • I18n::Backend::Simple#initialized? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:23
                                                    • I18n.normalize_keys $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:265
                                                      • I18n.default_separator $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:30
                                                        • I18n.config $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:17
                                                          • #<Class:Thread>#current $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                                          • Thread#[] $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                                        • ActionView::I18nProxy#default_separator $GemPath0/gems/i18n-0.8.4/lib/i18n/config.rb:68
                                                      • I18n.normalize_key $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:324
                                                        • I18n.normalized_key_cache $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:337
                                                      • Array#concat $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:269
                                                      • I18n.normalize_key $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:324
                                                        • I18n.normalized_key_cache $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:337
                                                      • Array#concat $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:270
                                                      • I18n.normalize_key $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:324
                                                        • I18n.normalized_key_cache $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:337
                                                      • Array#concat $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:271
                                                    • I18n::Backend::Simple#translations $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:61
                                                    • Enumerable#inject $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:74
                                                      • Array#each $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:74
                                                        • I18n::Backend::Simple#block in lookup $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:74
                                                          • Symbol#to_sym $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:75
                                                          • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:76
                                                          • Hash#has_key? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:76
                                                          • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:78
                                                        • I18n::Backend::Simple#block in lookup $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:74
                                                          • Symbol#to_sym $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:75
                                                          • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:76
                                                          • Hash#has_key? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:76
                                                  • NilClass#nil? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:28
                                                  • Hash#key? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:28
                                                  • I18n::Backend::Simple#resolve $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:117
                                                    • Kernel#catch $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:119
                                                      • I18n::Backend::Simple#block in resolve $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:119
                                                        • Module#=== $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:121
                                                        • Module#=== $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:123
                                                    • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:130
                                                  • NilClass#nil? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:34
                                                  • Hash#key? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:35
                                                  • Hash#key? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:35
                                                  • Class#new $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:36
                                                    • I18n::MissingTranslation#initialize $GemPath0/gems/i18n-0.8.4/lib/i18n/exceptions.rb:45
                                                      • Kernel#dup $GemPath0/gems/i18n-0.8.4/lib/i18n/exceptions.rb:46
                                                        • Kernel#initialize_dup $GemPath0/gems/i18n-0.8.4/lib/i18n/exceptions.rb:46
                                                          • Hash#initialize_copy $GemPath0/gems/i18n-0.8.4/lib/i18n/exceptions.rb:46
                                                      • Hash#each $GemPath0/gems/i18n-0.8.4/lib/i18n/exceptions.rb:47
                                                        • I18n::MissingTranslation#block in initialize $GemPath0/gems/i18n-0.8.4/lib/i18n/exceptions.rb:47
                                                          • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/exceptions.rb:47
                                                  • Kernel#throw $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:36
                                            • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:161
                                            • I18n.handle_exception $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:308
                                              • Kernel#throw $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:313
                                      • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:130
                                  • I18n::Backend::Simple#block in default $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:105
                                    • I18n::Backend::Simple#resolve $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:117
                                      • Kernel#catch $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:119
                                        • I18n::Backend::Simple#block in resolve $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:119
                                          • Module#=== $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:121
                                          • Hash#merge $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:122
                                            • Kernel#initialize_dup $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:122
                                              • Hash#initialize_copy $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:122
                                          • I18n.translate $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:144
                                            • Array#last $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                                            • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                                            • Array#pop $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                                            • Kernel#dup $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                                              • Kernel#initialize_dup $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                                                • Hash#initialize_copy $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                                            • Array#shift $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:146
                                            • I18n.config $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:17
                                              • #<Class:Thread>#current $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                              • Thread#[] $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                            • ActionView::I18nProxy#backend $GemPath0/gems/i18n-0.8.4/lib/i18n/config.rb:18
                                            • Hash#delete $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:148
                                            • Hash#delete $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:149
                                            • I18n.enforce_available_locales! $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:282
                                              • I18n.config $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:17
                                                • #<Class:Thread>#current $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                                • Thread#[] $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                              • ActionView::I18nProxy#enforce_available_locales $GemPath0/gems/i18n-0.8.4/lib/i18n/config.rb:134
                                              • I18n.locale_available? $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:277
                                                • I18n.config $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:17
                                                  • #<Class:Thread>#current $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                                  • Thread#[] $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                                • ActionView::I18nProxy#available_locales_set $GemPath0/gems/i18n-0.8.4/lib/i18n/config.rb:48
                                                • Set#include? /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/set.rb:232
                                            • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:152
                                            • Kernel#catch $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:154
                                              • I18n.block in translate $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:154
                                                • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:155
                                                • I18n::Backend::Simple#translate $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:24
                                                  • Kernel#nil? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:26
                                                  • I18n::Backend::Simple#lookup $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:70
                                                    • I18n::Backend::Simple#initialized? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:23
                                                    • I18n.normalize_keys $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:265
                                                      • I18n.default_separator $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:30
                                                        • I18n.config $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:17
                                                          • #<Class:Thread>#current $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                                          • Thread#[] $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                                        • ActionView::I18nProxy#default_separator $GemPath0/gems/i18n-0.8.4/lib/i18n/config.rb:68
                                                      • I18n.normalize_key $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:324
                                                        • I18n.normalized_key_cache $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:337
                                                      • Array#concat $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:269
                                                      • I18n.normalize_key $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:324
                                                        • I18n.normalized_key_cache $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:337
                                                      • Array#concat $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:270
                                                      • I18n.normalize_key $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:324
                                                        • I18n.normalized_key_cache $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:337
                                                      • Array#concat $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:271
                                                    • I18n::Backend::Simple#translations $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:61
                                                    • Enumerable#inject $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:74
                                                      • Array#each $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:74
                                                        • I18n::Backend::Simple#block in lookup $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:74
                                                          • Symbol#to_sym $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:75
                                                          • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:76
                                                          • Hash#has_key? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:76
                                                          • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:78
                                                        • I18n::Backend::Simple#block in lookup $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:74
                                                          • Symbol#to_sym $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:75
                                                          • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:76
                                                          • Hash#has_key? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:76
                                                  • NilClass#nil? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:28
                                                  • Hash#key? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:28
                                                  • I18n::Backend::Simple#resolve $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:117
                                                    • Kernel#catch $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:119
                                                      • I18n::Backend::Simple#block in resolve $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:119
                                                        • Module#=== $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:121
                                                        • Module#=== $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:123
                                                    • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:130
                                                  • NilClass#nil? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:34
                                                  • Hash#key? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:35
                                                  • Hash#key? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:35
                                                  • Class#new $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:36
                                                    • I18n::MissingTranslation#initialize $GemPath0/gems/i18n-0.8.4/lib/i18n/exceptions.rb:45
                                                      • Kernel#dup $GemPath0/gems/i18n-0.8.4/lib/i18n/exceptions.rb:46
                                                        • Kernel#initialize_dup $GemPath0/gems/i18n-0.8.4/lib/i18n/exceptions.rb:46
                                                          • Hash#initialize_copy $GemPath0/gems/i18n-0.8.4/lib/i18n/exceptions.rb:46
                                                      • Hash#each $GemPath0/gems/i18n-0.8.4/lib/i18n/exceptions.rb:47
                                                        • I18n::MissingTranslation#block in initialize $GemPath0/gems/i18n-0.8.4/lib/i18n/exceptions.rb:47
                                                          • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/exceptions.rb:47
                                                  • Kernel#throw $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:36
                                            • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:161
                                            • I18n.handle_exception $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:308
                                              • Kernel#throw $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:313
                                      • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:130
                                  • I18n::Backend::Simple#block in default $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:105
                                    • I18n::Backend::Simple#resolve $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:117
                                      • Kernel#catch $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:119
                                        • I18n::Backend::Simple#block in resolve $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:119
                                          • Module#=== $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:121
                                          • Module#=== $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:123
                                      • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:130
                              • Kernel#nil? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:34
                              • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:40
                              • Kernel#dup $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:40
                                • Kernel#initialize_dup $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:40
                                  • String#initialize_copy $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:40
                              • Hash#except $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:10
                                • Kernel#dup $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:11
                                  • Kernel#initialize_dup $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:11
                                    • Hash#initialize_copy $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:11
                                • Hash#except! $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:18
                                  • Array#each $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                    • Hash#block in except! $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                      • Hash#delete $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                    • Hash#block in except! $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                      • Hash#delete $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                    • Hash#block in except! $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                      • Hash#delete $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                    • Hash#block in except! $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                      • Hash#delete $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                    • Hash#block in except! $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                      • Hash#delete $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                    • Hash#block in except! $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                      • Hash#delete $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                    • Hash#block in except! $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                      • Hash#delete $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                    • Hash#block in except! $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                      • Hash#delete $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                    • Hash#block in except! $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                      • Hash#delete $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                    • Hash#block in except! $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                      • Hash#delete $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                    • Hash#block in except! $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                      • Hash#delete $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                              • I18n::Backend::Simple#interpolate $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:154
                                • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:155
                        • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:161
                      • String#presence $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/object/blank.rb:41
                        • String#present? $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/object/blank.rb:21
                          • String#blank? $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/object/blank.rb:114
          • SimpleForm::Wrappers::Root#block in render $GemPath0/gems/simple_form-3.5.0/lib/simple_form/wrappers/many.rb:26
          • SimpleForm::Wrappers::Root#block in render $GemPath0/gems/simple_form-3.5.0/lib/simple_form/wrappers/many.rb:26
          • SimpleForm::Wrappers::Root#block in render $GemPath0/gems/simple_form-3.5.0/lib/simple_form/wrappers/many.rb:26
            • SimpleForm::Wrappers::Leaf#render $GemPath0/gems/simple_form-3.5.0/lib/simple_form/wrappers/leaf.rb:11
              • Kernel#method $GemPath0/gems/simple_form-3.5.0/lib/simple_form/wrappers/leaf.rb:12
              • Method#arity $GemPath0/gems/simple_form-3.5.0/lib/simple_form/wrappers/leaf.rb:14
              • Method#call $GemPath0/gems/simple_form-3.5.0/lib/simple_form/wrappers/leaf.rb:19
                • SimpleForm::Inputs::StringInput#label_input $GemPath0/gems/simple_form-3.5.0/lib/simple_form/components/label_input.rb:10
                  • SimpleForm::Inputs::StringInput#deprecated_component $GemPath0/gems/simple_form-3.5.0/lib/simple_form/components/label_input.rb:20
                    • Kernel#method $GemPath0/gems/simple_form-3.5.0/lib/simple_form/components/label_input.rb:21
                    • Method#arity $GemPath0/gems/simple_form-3.5.0/lib/simple_form/components/label_input.rb:23
                    • Method#call $GemPath0/gems/simple_form-3.5.0/lib/simple_form/components/label_input.rb:28
                      • SimpleForm::Inputs::StringInput#label $GemPath0/gems/simple_form-3.5.0/lib/simple_form/components/labels.rb:24
                        • SimpleForm::Inputs::StringInput#label_html_options $GemPath0/gems/simple_form-3.5.0/lib/simple_form/components/labels.rb:43
                          • SimpleForm.additional_classes_for $GemPath0/gems/simple_form-3.5.0/lib/simple_form.rb:245
                            • SimpleForm.generate_additional_classes_for $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/module/attribute_accessors.rb:60
                            • Array#include? $GemPath0/gems/simple_form-3.5.0/lib/simple_form.rb:246
                            • SimpleForm::Inputs::StringInput#block in label_html_options $GemPath0/gems/simple_form-3.5.0/lib/simple_form/components/labels.rb:44
                              • SimpleForm::Inputs::StringInput#required_class $GemPath0/gems/simple_form-3.5.0/lib/simple_form/helpers/required.rb:30
                                • SimpleForm::Inputs::StringInput#required_field? $GemPath0/gems/simple_form-3.5.0/lib/simple_form/helpers/required.rb:6
                              • SimpleForm::Inputs::StringInput#disabled_class $GemPath0/gems/simple_form-3.5.0/lib/simple_form/helpers/disabled.rb:10
                                • SimpleForm::Inputs::StringInput#has_disabled? $GemPath0/gems/simple_form-3.5.0/lib/simple_form/helpers/disabled.rb:6
                              • SimpleForm.label_class $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/module/attribute_accessors.rb:60
                              • Array#compact $GemPath0/gems/simple_form-3.5.0/lib/simple_form/components/labels.rb:45
                          • SimpleForm::Inputs::StringInput#html_options_for $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:132
                            • Symbol#to_s $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:133
                            • String#intern $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:133
                            • Hash#key? $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:135
                          • Hash#key? $GemPath0/gems/simple_form-3.5.0/lib/simple_form/components/labels.rb:49
                        • SimpleForm::Inputs::StringInput#merge_wrapper_options $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:191
                          • Hash#merge $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:193
                            • Kernel#initialize_dup $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:193
                              • Hash#initialize_copy $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:193
                        • SimpleForm::Inputs::StringInput#generate_label_for_attribute? $GemPath0/gems/simple_form-3.5.0/lib/simple_form/components/labels.rb:78
                        • SimpleForm::Inputs::StringInput#label_target $GemPath0/gems/simple_form-3.5.0/lib/simple_form/components/labels.rb:39
                        • SimpleForm::Inputs::StringInput#label_text $GemPath0/gems/simple_form-3.5.0/lib/simple_form/components/labels.rb:34
                          • SimpleForm.label_text $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/module/attribute_accessors.rb:60
                          • SimpleForm::Inputs::StringInput#raw_label_text $GemPath0/gems/simple_form-3.5.0/lib/simple_form/components/labels.rb:58
                            • SimpleForm::Inputs::StringInput#label_translation $GemPath0/gems/simple_form-3.5.0/lib/simple_form/components/labels.rb:68
                              • SimpleForm.translate_labels $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/module/attribute_accessors.rb:60
                              • SimpleForm::Inputs::StringInput#translate_from_namespace $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:173
                                • SimpleForm::Inputs::StringInput#lookup_model_names $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:33
                                  • SimpleForm::FormBuilder#lookup_model_names $GemPath0/gems/simple_form-3.5.0/lib/simple_form/form_builder.rb:437
                                • Kernel#dup $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:174
                                  • Kernel#initialize_dup $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:174
                                    • Array#initialize_copy $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:174
                                • Array#join $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:178
                                • Array#shift $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:179
                                • SimpleForm::Inputs::StringInput#lookup_action $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:33
                                  • SimpleForm::FormBuilder#lookup_action $GemPath0/gems/simple_form-3.5.0/lib/simple_form/form_builder.rb:448
                                • SimpleForm::Inputs::StringInput#reflection_or_attribute_name $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:127
                                • Symbol#to_s $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:181
                                • String#intern $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:181
                                • SimpleForm::Inputs::StringInput#reflection_or_attribute_name $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:127
                                • Symbol#to_s $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:182
                                • String#intern $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:182
                                • SimpleForm::Inputs::StringInput#lookup_action $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:33
                                  • SimpleForm::FormBuilder#lookup_action $GemPath0/gems/simple_form-3.5.0/lib/simple_form/form_builder.rb:448
                                • SimpleForm::Inputs::StringInput#reflection_or_attribute_name $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:127
                                • Symbol#to_s $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:184
                                • String#intern $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:184
                                • SimpleForm::Inputs::StringInput#reflection_or_attribute_name $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:127
                                • Symbol#to_s $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:185
                                • String#intern $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:185
                                • Array#shift $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:188
                                • SimpleForm::Inputs::StringInput#i18n_scope $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:208
                                  • SimpleForm.i18n_scope $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                • Symbol#to_s $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:188
                                • String#intern $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:188
                                • I18n.translate $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:144
                                  • Array#last $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                                  • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                                  • Array#pop $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                                  • Kernel#dup $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                                    • Kernel#initialize_dup $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                                      • Hash#initialize_copy $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                                  • Array#shift $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:146
                                  • I18n.config $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:17
                                    • #<Class:Thread>#current $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                    • Thread#[] $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                  • ActionView::I18nProxy#backend $GemPath0/gems/i18n-0.8.4/lib/i18n/config.rb:18
                                  • Hash#delete $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:148
                                  • I18n.config $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:17
                                    • #<Class:Thread>#current $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                    • Thread#[] $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                  • ActionView::I18nProxy#locale $GemPath0/gems/actionview-5.0.4/lib/action_view/rendering.rb:14
                                    • I18n::Config#locale $GemPath0/gems/i18n-0.8.4/lib/i18n/config.rb:7
                                      • I18n::Config#default_locale $GemPath0/gems/i18n-0.8.4/lib/i18n/config.rb:28
                                  • Hash#delete $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:149
                                  • Hash#delete $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:149
                                  • I18n.enforce_available_locales! $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:282
                                    • I18n.config $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:17
                                      • #<Class:Thread>#current $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                      • Thread#[] $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                    • ActionView::I18nProxy#enforce_available_locales $GemPath0/gems/i18n-0.8.4/lib/i18n/config.rb:134
                                    • I18n.locale_available? $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:277
                                      • I18n.config $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:17
                                        • #<Class:Thread>#current $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                        • Thread#[] $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                      • ActionView::I18nProxy#available_locales_set $GemPath0/gems/i18n-0.8.4/lib/i18n/config.rb:48
                                      • Set#include? /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/set.rb:232
                                  • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:152
                                  • Kernel#catch $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:154
                                    • I18n.block in translate $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:154
                                      • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:155
                                      • I18n::Backend::Simple#translate $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:24
                                        • Kernel#nil? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:26
                                        • I18n::Backend::Simple#lookup $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:70
                                          • I18n::Backend::Simple#initialized? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:23
                                          • I18n.normalize_keys $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:265
                                            • I18n.default_separator $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:30
                                              • I18n.config $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:17
                                                • #<Class:Thread>#current $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                                • Thread#[] $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                              • ActionView::I18nProxy#default_separator $GemPath0/gems/i18n-0.8.4/lib/i18n/config.rb:68
                                            • I18n.normalize_key $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:324
                                              • I18n.normalized_key_cache $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:337
                                            • Array#concat $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:269
                                            • I18n.normalize_key $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:324
                                              • I18n.normalized_key_cache $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:337
                                            • Array#concat $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:270
                                            • I18n.normalize_key $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:324
                                              • I18n.normalized_key_cache $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:337
                                            • Array#concat $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:271
                                          • I18n::Backend::Simple#translations $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:61
                                          • Enumerable#inject $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:74
                                            • Array#each $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:74
                                              • I18n::Backend::Simple#block in lookup $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:74
                                                • Symbol#to_sym $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:75
                                                • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:76
                                                • Hash#has_key? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:76
                                                • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:78
                                              • I18n::Backend::Simple#block in lookup $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:74
                                                • Symbol#to_sym $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:75
                                                • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:76
                                                • Hash#has_key? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:76
                                        • NilClass#nil? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:28
                                        • Hash#key? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:28
                                        • I18n::Backend::Simple#default $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:101
                                          • Kernel#dup $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:102
                                            • Kernel#initialize_dup $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:102
                                              • Hash#initialize_copy $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:102
                                          • Hash#reject $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:102
                                            • I18n::Backend::Simple#block in default $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:102
                                            • I18n::Backend::Simple#block in default $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:102
                                          • Module#=== $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:104
                                          • Array#each $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:105
                                            • I18n::Backend::Simple#block in default $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:105
                                              • I18n::Backend::Simple#resolve $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:117
                                                • Kernel#catch $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:119
                                                  • I18n::Backend::Simple#block in resolve $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:119
                                                    • Module#=== $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:121
                                                    • Hash#merge $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:122
                                                      • Kernel#initialize_dup $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:122
                                                        • Hash#initialize_copy $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:122
                                                    • I18n.translate $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:144
                                                      • Array#last $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                                                      • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                                                      • Array#pop $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                                                      • Kernel#dup $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                                                        • Kernel#initialize_dup $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                                                          • Hash#initialize_copy $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                                                      • Array#shift $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:146
                                                      • I18n.config $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:17
                                                        • #<Class:Thread>#current $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                                        • Thread#[] $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                                      • ActionView::I18nProxy#backend $GemPath0/gems/i18n-0.8.4/lib/i18n/config.rb:18
                                                      • Hash#delete $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:148
                                                      • Hash#delete $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:149
                                                      • I18n.enforce_available_locales! $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:282
                                                        • I18n.config $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:17
                                                          • #<Class:Thread>#current $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                                          • Thread#[] $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                                        • ActionView::I18nProxy#enforce_available_locales $GemPath0/gems/i18n-0.8.4/lib/i18n/config.rb:134
                                                        • I18n.locale_available? $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:277
                                                          • I18n.config $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:17
                                                            • #<Class:Thread>#current $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                                            • Thread#[] $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                                          • ActionView::I18nProxy#available_locales_set $GemPath0/gems/i18n-0.8.4/lib/i18n/config.rb:48
                                                          • Set#include? /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/set.rb:232
                                                      • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:152
                                                      • Kernel#catch $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:154
                                                        • I18n.block in translate $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:154
                                                          • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:155
                                                          • I18n::Backend::Simple#translate $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:24
                                                            • Kernel#nil? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:26
                                                            • I18n::Backend::Simple#lookup $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:70
                                                              • I18n::Backend::Simple#initialized? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:23
                                                              • I18n.normalize_keys $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:265
                                                                • I18n.default_separator $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:30
                                                                  • I18n.config $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:17
                                                                    • #<Class:Thread>#current $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                                                    • Thread#[] $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                                                  • ActionView::I18nProxy#default_separator $GemPath0/gems/i18n-0.8.4/lib/i18n/config.rb:68
                                                                • I18n.normalize_key $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:324
                                                                  • I18n.normalized_key_cache $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:337
                                                                • Array#concat $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:269
                                                                • I18n.normalize_key $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:324
                                                                  • I18n.normalized_key_cache $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:337
                                                                • Array#concat $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:270
                                                                • I18n.normalize_key $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:324
                                                                  • I18n.normalized_key_cache $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:337
                                                                • Array#concat $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:271
                                                              • I18n::Backend::Simple#translations $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:61
                                                              • Enumerable#inject $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:74
                                                                • Array#each $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:74
                                                                  • I18n::Backend::Simple#block in lookup $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:74
                                                                    • Symbol#to_sym $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:75
                                                                    • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:76
                                                                    • Hash#has_key? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:76
                                                                    • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:78
                                                                  • I18n::Backend::Simple#block in lookup $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:74
                                                                    • Symbol#to_sym $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:75
                                                                    • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:76
                                                                    • Hash#has_key? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:76
                                                            • NilClass#nil? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:28
                                                            • Hash#key? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:28
                                                            • I18n::Backend::Simple#resolve $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:117
                                                              • Kernel#catch $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:119
                                                                • I18n::Backend::Simple#block in resolve $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:119
                                                                  • Module#=== $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:121
                                                                  • Module#=== $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:123
                                                              • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:130
                                                            • NilClass#nil? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:34
                                                            • Hash#key? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:35
                                                            • Hash#key? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:35
                                                            • Class#new $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:36
                                                              • I18n::MissingTranslation#initialize $GemPath0/gems/i18n-0.8.4/lib/i18n/exceptions.rb:45
                                                                • Kernel#dup $GemPath0/gems/i18n-0.8.4/lib/i18n/exceptions.rb:46
                                                                  • Kernel#initialize_dup $GemPath0/gems/i18n-0.8.4/lib/i18n/exceptions.rb:46
                                                                    • Hash#initialize_copy $GemPath0/gems/i18n-0.8.4/lib/i18n/exceptions.rb:46
                                                                • Hash#each $GemPath0/gems/i18n-0.8.4/lib/i18n/exceptions.rb:47
                                                                  • I18n::MissingTranslation#block in initialize $GemPath0/gems/i18n-0.8.4/lib/i18n/exceptions.rb:47
                                                                    • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/exceptions.rb:47
                                                            • Kernel#throw $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:36
                                                      • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:161
                                                      • I18n.handle_exception $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:308
                                                        • Kernel#throw $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:313
                                                • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:130
                                            • I18n::Backend::Simple#block in default $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:105
                                              • I18n::Backend::Simple#resolve $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:117
                                                • Kernel#catch $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:119
                                                  • I18n::Backend::Simple#block in resolve $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:119
                                                    • Module#=== $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:121
                                                    • Hash#merge $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:122
                                                      • Kernel#initialize_dup $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:122
                                                        • Hash#initialize_copy $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:122
                                                    • I18n.translate $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:144
                                                      • Array#last $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                                                      • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                                                      • Array#pop $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                                                      • Kernel#dup $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                                                        • Kernel#initialize_dup $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                                                          • Hash#initialize_copy $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                                                      • Array#shift $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:146
                                                      • I18n.config $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:17
                                                        • #<Class:Thread>#current $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                                        • Thread#[] $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                                      • ActionView::I18nProxy#backend $GemPath0/gems/i18n-0.8.4/lib/i18n/config.rb:18
                                                      • Hash#delete $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:148
                                                      • Hash#delete $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:149
                                                      • I18n.enforce_available_locales! $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:282
                                                        • I18n.config $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:17
                                                          • #<Class:Thread>#current $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                                          • Thread#[] $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                                        • ActionView::I18nProxy#enforce_available_locales $GemPath0/gems/i18n-0.8.4/lib/i18n/config.rb:134
                                                        • I18n.locale_available? $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:277
                                                          • I18n.config $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:17
                                                            • #<Class:Thread>#current $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                                            • Thread#[] $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                                          • ActionView::I18nProxy#available_locales_set $GemPath0/gems/i18n-0.8.4/lib/i18n/config.rb:48
                                                          • Set#include? /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/set.rb:232
                                                      • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:152
                                                      • Kernel#catch $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:154
                                                        • I18n.block in translate $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:154
                                                          • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:155
                                                          • I18n::Backend::Simple#translate $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:24
                                                            • Kernel#nil? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:26
                                                            • I18n::Backend::Simple#lookup $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:70
                                                              • I18n::Backend::Simple#initialized? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:23
                                                              • I18n.normalize_keys $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:265
                                                                • I18n.default_separator $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:30
                                                                  • I18n.config $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:17
                                                                    • #<Class:Thread>#current $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                                                    • Thread#[] $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                                                  • ActionView::I18nProxy#default_separator $GemPath0/gems/i18n-0.8.4/lib/i18n/config.rb:68
                                                                • I18n.normalize_key $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:324
                                                                  • I18n.normalized_key_cache $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:337
                                                                • Array#concat $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:269
                                                                • I18n.normalize_key $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:324
                                                                  • I18n.normalized_key_cache $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:337
                                                                • Array#concat $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:270
                                                                • I18n.normalize_key $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:324
                                                                  • I18n.normalized_key_cache $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:337
                                                                • Array#concat $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:271
                                                              • I18n::Backend::Simple#translations $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:61
                                                              • Enumerable#inject $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:74
                                                                • Array#each $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:74
                                                                  • I18n::Backend::Simple#block in lookup $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:74
                                                                    • Symbol#to_sym $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:75
                                                                    • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:76
                                                                    • Hash#has_key? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:76
                                                                    • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:78
                                                                  • I18n::Backend::Simple#block in lookup $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:74
                                                                    • Symbol#to_sym $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:75
                                                                    • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:76
                                                                    • Hash#has_key? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:76
                                                            • NilClass#nil? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:28
                                                            • Hash#key? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:28
                                                            • I18n::Backend::Simple#resolve $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:117
                                                              • Kernel#catch $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:119
                                                                • I18n::Backend::Simple#block in resolve $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:119
                                                                  • Module#=== $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:121
                                                                  • Module#=== $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:123
                                                              • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:130
                                                            • NilClass#nil? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:34
                                                            • Hash#key? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:35
                                                            • Hash#key? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:35
                                                            • Class#new $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:36
                                                              • I18n::MissingTranslation#initialize $GemPath0/gems/i18n-0.8.4/lib/i18n/exceptions.rb:45
                                                                • Kernel#dup $GemPath0/gems/i18n-0.8.4/lib/i18n/exceptions.rb:46
                                                                  • Kernel#initialize_dup $GemPath0/gems/i18n-0.8.4/lib/i18n/exceptions.rb:46
                                                                    • Hash#initialize_copy $GemPath0/gems/i18n-0.8.4/lib/i18n/exceptions.rb:46
                                                                • Hash#each $GemPath0/gems/i18n-0.8.4/lib/i18n/exceptions.rb:47
                                                                  • I18n::MissingTranslation#block in initialize $GemPath0/gems/i18n-0.8.4/lib/i18n/exceptions.rb:47
                                                                    • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/exceptions.rb:47
                                                            • Kernel#throw $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:36
                                                      • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:161
                                                      • I18n.handle_exception $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:308
                                                        • Kernel#throw $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:313
                                                • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:130
                                            • I18n::Backend::Simple#block in default $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:105
                                              • I18n::Backend::Simple#resolve $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:117
                                                • Kernel#catch $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:119
                                                  • I18n::Backend::Simple#block in resolve $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:119
                                                    • Module#=== $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:121
                                                    • Hash#merge $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:122
                                                      • Kernel#initialize_dup $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:122
                                                        • Hash#initialize_copy $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:122
                                                    • I18n.translate $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:144
                                                      • Array#last $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                                                      • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                                                      • Array#pop $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                                                      • Kernel#dup $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                                                        • Kernel#initialize_dup $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                                                          • Hash#initialize_copy $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                                                      • Array#shift $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:146
                                                      • I18n.config $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:17
                                                        • #<Class:Thread>#current $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                                        • Thread#[] $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                                      • ActionView::I18nProxy#backend $GemPath0/gems/i18n-0.8.4/lib/i18n/config.rb:18
                                                      • Hash#delete $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:148
                                                      • Hash#delete $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:149
                                                      • I18n.enforce_available_locales! $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:282
                                                        • I18n.config $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:17
                                                          • #<Class:Thread>#current $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                                          • Thread#[] $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                                        • ActionView::I18nProxy#enforce_available_locales $GemPath0/gems/i18n-0.8.4/lib/i18n/config.rb:134
                                                        • I18n.locale_available? $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:277
                                                          • I18n.config $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:17
                                                            • #<Class:Thread>#current $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                                            • Thread#[] $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                                          • ActionView::I18nProxy#available_locales_set $GemPath0/gems/i18n-0.8.4/lib/i18n/config.rb:48
                                                          • Set#include? /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/set.rb:232
                                                      • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:152
                                                      • Kernel#catch $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:154
                                                        • I18n.block in translate $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:154
                                                          • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:155
                                                          • I18n::Backend::Simple#translate $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:24
                                                            • Kernel#nil? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:26
                                                            • I18n::Backend::Simple#lookup $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:70
                                                              • I18n::Backend::Simple#initialized? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:23
                                                              • I18n.normalize_keys $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:265
                                                                • I18n.default_separator $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:30
                                                                  • I18n.config $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:17
                                                                    • #<Class:Thread>#current $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                                                    • Thread#[] $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                                                  • ActionView::I18nProxy#default_separator $GemPath0/gems/i18n-0.8.4/lib/i18n/config.rb:68
                                                                • I18n.normalize_key $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:324
                                                                  • I18n.normalized_key_cache $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:337
                                                                • Array#concat $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:269
                                                                • I18n.normalize_key $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:324
                                                                  • I18n.normalized_key_cache $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:337
                                                                • Array#concat $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:270
                                                                • I18n.normalize_key $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:324
                                                                  • I18n.normalized_key_cache $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:337
                                                                • Array#concat $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:271
                                                              • I18n::Backend::Simple#translations $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:61
                                                              • Enumerable#inject $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:74
                                                                • Array#each $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:74
                                                                  • I18n::Backend::Simple#block in lookup $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:74
                                                                    • Symbol#to_sym $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:75
                                                                    • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:76
                                                                    • Hash#has_key? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:76
                                                                    • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:78
                                                                  • I18n::Backend::Simple#block in lookup $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:74
                                                                    • Symbol#to_sym $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:75
                                                                    • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:76
                                                                    • Hash#has_key? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:76
                                                            • NilClass#nil? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:28
                                                            • Hash#key? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:28
                                                            • I18n::Backend::Simple#resolve $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:117
                                                              • Kernel#catch $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:119
                                                                • I18n::Backend::Simple#block in resolve $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:119
                                                                  • Module#=== $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:121
                                                                  • Module#=== $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:123
                                                              • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:130
                                                            • NilClass#nil? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:34
                                                            • Hash#key? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:35
                                                            • Hash#key? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:35
                                                            • Class#new $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:36
                                                              • I18n::MissingTranslation#initialize $GemPath0/gems/i18n-0.8.4/lib/i18n/exceptions.rb:45
                                                                • Kernel#dup $GemPath0/gems/i18n-0.8.4/lib/i18n/exceptions.rb:46
                                                                  • Kernel#initialize_dup $GemPath0/gems/i18n-0.8.4/lib/i18n/exceptions.rb:46
                                                                    • Hash#initialize_copy $GemPath0/gems/i18n-0.8.4/lib/i18n/exceptions.rb:46
                                                                • Hash#each $GemPath0/gems/i18n-0.8.4/lib/i18n/exceptions.rb:47
                                                                  • I18n::MissingTranslation#block in initialize $GemPath0/gems/i18n-0.8.4/lib/i18n/exceptions.rb:47
                                                                    • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/exceptions.rb:47
                                                            • Kernel#throw $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:36
                                                      • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:161
                                                      • I18n.handle_exception $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:308
                                                        • Kernel#throw $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:313
                                                • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:130
                                            • I18n::Backend::Simple#block in default $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:105
                                              • I18n::Backend::Simple#resolve $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:117
                                                • Kernel#catch $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:119
                                                  • I18n::Backend::Simple#block in resolve $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:119
                                                    • Module#=== $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:121
                                                    • Module#=== $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:123
                                                • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:130
                                        • Kernel#nil? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:34
                                        • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:40
                                        • Kernel#dup $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:40
                                          • Kernel#initialize_dup $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:40
                                            • String#initialize_copy $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:40
                                        • Hash#except $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:10
                                          • Kernel#dup $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:11
                                            • Kernel#initialize_dup $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:11
                                              • Hash#initialize_copy $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:11
                                          • Hash#except! $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:18
                                            • Array#each $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                              • Hash#block in except! $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                                • Hash#delete $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                              • Hash#block in except! $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                                • Hash#delete $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                              • Hash#block in except! $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                                • Hash#delete $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                              • Hash#block in except! $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                                • Hash#delete $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                              • Hash#block in except! $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                                • Hash#delete $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                              • Hash#block in except! $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                                • Hash#delete $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                              • Hash#block in except! $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                                • Hash#delete $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                              • Hash#block in except! $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                                • Hash#delete $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                              • Hash#block in except! $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                                • Hash#delete $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                              • Hash#block in except! $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                                • Hash#delete $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                              • Hash#block in except! $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                                • Hash#delete $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                        • I18n::Backend::Simple#interpolate $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:154
                                          • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:155
                                  • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:161
                                • String#presence $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/object/blank.rb:41
                                  • String#present? $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/object/blank.rb:21
                                    • String#blank? $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/object/blank.rb:114
                              • SimpleForm::Inputs::StringInput#object $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:33
                              • Kernel#class $GemPath0/gems/simple_form-3.5.0/lib/simple_form/components/labels.rb:71
                              • Student.respond_to? $GemPath0/gems/activerecord-5.0.4/lib/active_record/dynamic_matchers.rb:3
                                • ActiveRecord::DynamicMatchers::Method.match $GemPath0/gems/activerecord-5.0.4/lib/active_record/dynamic_matchers.rb:31
                                  • Enumerable#find $GemPath0/gems/activerecord-5.0.4/lib/active_record/dynamic_matchers.rb:32
                                    • Array#each $GemPath0/gems/activerecord-5.0.4/lib/active_record/dynamic_matchers.rb:32
                                      • ActiveRecord::DynamicMatchers::Method.block in match $GemPath0/gems/activerecord-5.0.4/lib/active_record/dynamic_matchers.rb:32
                                        • ActiveRecord::DynamicMatchers::FindBy.pattern $GemPath0/gems/activerecord-5.0.4/lib/active_record/dynamic_matchers.rb:36
                                        • Symbol#=~ $GemPath0/gems/activerecord-5.0.4/lib/active_record/dynamic_matchers.rb:32
                                      • ActiveRecord::DynamicMatchers::Method.block in match $GemPath0/gems/activerecord-5.0.4/lib/active_record/dynamic_matchers.rb:32
                                        • ActiveRecord::DynamicMatchers::FindByBang.pattern $GemPath0/gems/activerecord-5.0.4/lib/active_record/dynamic_matchers.rb:36
                                        • Symbol#=~ $GemPath0/gems/activerecord-5.0.4/lib/active_record/dynamic_matchers.rb:32
                                • Kernel#respond_to? $GemPath0/gems/activerecord-5.0.4/lib/active_record/dynamic_matchers.rb:8
                              • SimpleForm::Inputs::StringInput#object $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:33
                              • Kernel#class $GemPath0/gems/simple_form-3.5.0/lib/simple_form/components/labels.rb:72
                              • SimpleForm::Inputs::StringInput#reflection_or_attribute_name $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:127
                              • Symbol#to_s $GemPath0/gems/simple_form-3.5.0/lib/simple_form/components/labels.rb:72
                              • Student.human_attribute_name $GemPath0/gems/activemodel-5.0.4/lib/active_model/translation.rb:43
                                • Hash#merge! $GemPath0/gems/activemodel-5.0.4/lib/active_model/translation.rb:44
                                • String#to_s $GemPath0/gems/activemodel-5.0.4/lib/active_model/translation.rb:45
                                • String#split $GemPath0/gems/activemodel-5.0.4/lib/active_model/translation.rb:45
                                • Array#pop $GemPath0/gems/activemodel-5.0.4/lib/active_model/translation.rb:46
                                • Student.i18n_scope $GemPath0/gems/activerecord-5.0.4/lib/active_record/translation.rb:18
                                • Symbol#to_s $GemPath0/gems/activemodel-5.0.4/lib/active_model/translation.rb:48
                                • Student.lookup_ancestors $GemPath0/gems/activerecord-5.0.4/lib/active_record/translation.rb:6
                                  • Student.base_class $GemPath0/gems/activerecord-5.0.4/lib/active_record/inheritance.rb:94
                                    • Module#< $GemPath0/gems/activerecord-5.0.4/lib/active_record/inheritance.rb:95
                                    • Class#superclass $GemPath0/gems/activerecord-5.0.4/lib/active_record/inheritance.rb:99
                                    • Class#superclass $GemPath0/gems/activerecord-5.0.4/lib/active_record/inheritance.rb:99
                                    • ApplicationRecord.abstract_class? $GemPath0/gems/activerecord-5.0.4/lib/active_record/inheritance.rb:124
                                • Array#map $GemPath0/gems/activemodel-5.0.4/lib/active_model/translation.rb:56
                                  • Student.block in human_attribute_name $GemPath0/gems/activemodel-5.0.4/lib/active_model/translation.rb:56
                                    • Student.model_name $GemPath0/gems/activemodel-5.0.4/lib/active_model/naming.rb:236
                                    • Symbol#to_s $GemPath0/gems/activemodel-5.0.4/lib/active_model/translation.rb:57
                                    • String#intern $GemPath0/gems/activemodel-5.0.4/lib/active_model/translation.rb:57
                                • String#intern $GemPath0/gems/activemodel-5.0.4/lib/active_model/translation.rb:61
                                • String#humanize $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/inflections.rb:221
                                  • ActiveSupport::Inflector.humanize $GemPath0/gems/activesupport-5.0.4/lib/active_support/inflector/methods.rb:123
                                    • String#to_s $GemPath0/gems/activesupport-5.0.4/lib/active_support/inflector/methods.rb:124
                                    • Kernel#dup $GemPath0/gems/activesupport-5.0.4/lib/active_support/inflector/methods.rb:124
                                      • Kernel#initialize_dup $GemPath0/gems/activesupport-5.0.4/lib/active_support/inflector/methods.rb:124
                                        • String#initialize_copy $GemPath0/gems/activesupport-5.0.4/lib/active_support/inflector/methods.rb:124
                                    • ActiveSupport::Inflector.inflections $GemPath0/gems/activesupport-5.0.4/lib/active_support/inflector/inflections.rb:234
                                      • Kernel#block_given? $GemPath0/gems/activesupport-5.0.4/lib/active_support/inflector/inflections.rb:235
                                      • ActiveSupport::Inflector::Inflections.instance $GemPath0/gems/activesupport-5.0.4/lib/active_support/inflector/inflections.rb:61
                                        • Concurrent::Map#[] $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/map.rb:92
                                          • Concurrent::Map#[] $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/collection/map/non_concurrent_map_backend.rb:19
                                    • Array#each $GemPath0/gems/activesupport-5.0.4/lib/active_support/inflector/methods.rb:126
                                    • String#sub! $GemPath0/gems/activesupport-5.0.4/lib/active_support/inflector/methods.rb:128
                                    • String#sub! $GemPath0/gems/activesupport-5.0.4/lib/active_support/inflector/methods.rb:129
                                    • String#tr! $GemPath0/gems/activesupport-5.0.4/lib/active_support/inflector/methods.rb:130
                                    • String#gsub! $GemPath0/gems/activesupport-5.0.4/lib/active_support/inflector/methods.rb:132
                                      • ActiveSupport::Inflector.block in humanize $GemPath0/gems/activesupport-5.0.4/lib/active_support/inflector/methods.rb:132
                                        • ActiveSupport::Inflector.inflections $GemPath0/gems/activesupport-5.0.4/lib/active_support/inflector/inflections.rb:234
                                          • Kernel#block_given? $GemPath0/gems/activesupport-5.0.4/lib/active_support/inflector/inflections.rb:235
                                          • ActiveSupport::Inflector::Inflections.instance $GemPath0/gems/activesupport-5.0.4/lib/active_support/inflector/inflections.rb:61
                                            • Concurrent::Map#[] $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/map.rb:92
                                              • Concurrent::Map#[] $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/collection/map/non_concurrent_map_backend.rb:19
                                        • String#downcase $GemPath0/gems/activesupport-5.0.4/lib/active_support/inflector/methods.rb:133
                                      • ActiveSupport::Inflector.block in humanize $GemPath0/gems/activesupport-5.0.4/lib/active_support/inflector/methods.rb:132
                                        • ActiveSupport::Inflector.inflections $GemPath0/gems/activesupport-5.0.4/lib/active_support/inflector/inflections.rb:234
                                          • Kernel#block_given? $GemPath0/gems/activesupport-5.0.4/lib/active_support/inflector/inflections.rb:235
                                          • ActiveSupport::Inflector::Inflections.instance $GemPath0/gems/activesupport-5.0.4/lib/active_support/inflector/inflections.rb:61
                                            • Concurrent::Map#[] $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/map.rb:92
                                              • Concurrent::Map#[] $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/collection/map/non_concurrent_map_backend.rb:19
                                        • String#downcase $GemPath0/gems/activesupport-5.0.4/lib/active_support/inflector/methods.rb:133
                                    • Hash#fetch $GemPath0/gems/activesupport-5.0.4/lib/active_support/inflector/methods.rb:136
                                    • String#sub! $GemPath0/gems/activesupport-5.0.4/lib/active_support/inflector/methods.rb:137
                                      • ActiveSupport::Inflector.block in humanize $GemPath0/gems/activesupport-5.0.4/lib/active_support/inflector/methods.rb:137
                                        • String#upcase $GemPath0/gems/activesupport-5.0.4/lib/active_support/inflector/methods.rb:137
                                • Array#shift $GemPath0/gems/activemodel-5.0.4/lib/active_model/translation.rb:66
                                • I18n.translate $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:144
                                  • Array#last $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                                  • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                                  • Array#pop $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                                  • Kernel#dup $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                                    • Kernel#initialize_dup $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                                      • Hash#initialize_copy $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                                  • Array#shift $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:146
                                  • I18n.config $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:17
                                    • #<Class:Thread>#current $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                    • Thread#[] $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                  • ActionView::I18nProxy#backend $GemPath0/gems/i18n-0.8.4/lib/i18n/config.rb:18
                                  • Hash#delete $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:148
                                  • I18n.config $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:17
                                    • #<Class:Thread>#current $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                    • Thread#[] $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                  • ActionView::I18nProxy#locale $GemPath0/gems/actionview-5.0.4/lib/action_view/rendering.rb:14
                                    • I18n::Config#locale $GemPath0/gems/i18n-0.8.4/lib/i18n/config.rb:7
                                      • I18n::Config#default_locale $GemPath0/gems/i18n-0.8.4/lib/i18n/config.rb:28
                                  • Hash#delete $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:149
                                  • Hash#delete $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:149
                                  • I18n.enforce_available_locales! $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:282
                                    • I18n.config $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:17
                                      • #<Class:Thread>#current $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                      • Thread#[] $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                    • ActionView::I18nProxy#enforce_available_locales $GemPath0/gems/i18n-0.8.4/lib/i18n/config.rb:134
                                    • I18n.locale_available? $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:277
                                      • I18n.config $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:17
                                        • #<Class:Thread>#current $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                        • Thread#[] $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                      • ActionView::I18nProxy#available_locales_set $GemPath0/gems/i18n-0.8.4/lib/i18n/config.rb:48
                                      • Set#include? /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/set.rb:232
                                  • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:152
                                  • Kernel#catch $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:154
                                    • I18n.block in translate $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:154
                                      • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:155
                                      • I18n::Backend::Simple#translate $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:24
                                        • Kernel#nil? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:26
                                        • I18n::Backend::Simple#lookup $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:70
                                          • I18n::Backend::Simple#initialized? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:23
                                          • I18n.normalize_keys $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:265
                                            • I18n.default_separator $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:30
                                              • I18n.config $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:17
                                                • #<Class:Thread>#current $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                                • Thread#[] $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                              • ActionView::I18nProxy#default_separator $GemPath0/gems/i18n-0.8.4/lib/i18n/config.rb:68
                                            • I18n.normalize_key $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:324
                                              • I18n.normalized_key_cache $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:337
                                            • Array#concat $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:269
                                            • I18n.normalize_key $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:324
                                              • I18n.normalized_key_cache $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:337
                                            • Array#concat $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:270
                                            • I18n.normalize_key $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:324
                                              • I18n.normalized_key_cache $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:337
                                            • Array#concat $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:271
                                          • I18n::Backend::Simple#translations $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:61
                                          • Enumerable#inject $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:74
                                            • Array#each $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:74
                                              • I18n::Backend::Simple#block in lookup $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:74
                                                • Symbol#to_sym $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:75
                                                • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:76
                                                • Hash#has_key? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:76
                                                • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:78
                                              • I18n::Backend::Simple#block in lookup $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:74
                                                • Symbol#to_sym $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:75
                                                • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:76
                                                • Hash#has_key? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:76
                                                • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:78
                                              • I18n::Backend::Simple#block in lookup $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:74
                                                • Symbol#to_sym $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:75
                                                • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:76
                                                • Hash#has_key? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:76
                                        • NilClass#nil? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:28
                                        • Hash#key? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:28
                                        • I18n::Backend::Simple#default $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:101
                                          • Kernel#dup $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:102
                                            • Kernel#initialize_dup $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:102
                                              • Hash#initialize_copy $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:102
                                          • Hash#reject $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:102
                                            • I18n::Backend::Simple#block in default $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:102
                                            • I18n::Backend::Simple#block in default $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:102
                                          • Module#=== $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:104
                                          • Array#each $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:105
                                            • I18n::Backend::Simple#block in default $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:105
                                              • I18n::Backend::Simple#resolve $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:117
                                                • Kernel#catch $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:119
                                                  • I18n::Backend::Simple#block in resolve $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:119
                                                    • Module#=== $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:121
                                                    • Hash#merge $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:122
                                                      • Kernel#initialize_dup $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:122
                                                        • Hash#initialize_copy $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:122
                                                    • I18n.translate $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:144
                                                      • Array#last $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                                                      • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                                                      • Array#pop $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                                                      • Kernel#dup $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                                                        • Kernel#initialize_dup $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                                                          • Hash#initialize_copy $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                                                      • Array#shift $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:146
                                                      • I18n.config $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:17
                                                        • #<Class:Thread>#current $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                                        • Thread#[] $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                                      • ActionView::I18nProxy#backend $GemPath0/gems/i18n-0.8.4/lib/i18n/config.rb:18
                                                      • Hash#delete $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:148
                                                      • Hash#delete $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:149
                                                      • I18n.enforce_available_locales! $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:282
                                                        • I18n.config $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:17
                                                          • #<Class:Thread>#current $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                                          • Thread#[] $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                                        • ActionView::I18nProxy#enforce_available_locales $GemPath0/gems/i18n-0.8.4/lib/i18n/config.rb:134
                                                        • I18n.locale_available? $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:277
                                                          • I18n.config $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:17
                                                            • #<Class:Thread>#current $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                                            • Thread#[] $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                                          • ActionView::I18nProxy#available_locales_set $GemPath0/gems/i18n-0.8.4/lib/i18n/config.rb:48
                                                          • Set#include? /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/set.rb:232
                                                      • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:152
                                                      • Kernel#catch $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:154
                                                        • I18n.block in translate $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:154
                                                          • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:155
                                                          • I18n::Backend::Simple#translate $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:24
                                                            • Kernel#nil? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:26
                                                            • I18n::Backend::Simple#lookup $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:70
                                                              • I18n::Backend::Simple#initialized? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:23
                                                              • I18n.normalize_keys $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:265
                                                                • I18n.default_separator $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:30
                                                                  • I18n.config $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:17
                                                                    • #<Class:Thread>#current $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                                                    • Thread#[] $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                                                  • ActionView::I18nProxy#default_separator $GemPath0/gems/i18n-0.8.4/lib/i18n/config.rb:68
                                                                • I18n.normalize_key $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:324
                                                                  • I18n.normalized_key_cache $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:337
                                                                • Array#concat $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:269
                                                                • I18n.normalize_key $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:324
                                                                  • I18n.normalized_key_cache $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:337
                                                                • Array#concat $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:270
                                                                • I18n.normalize_key $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:324
                                                                  • I18n.normalized_key_cache $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:337
                                                                • Array#concat $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:271
                                                              • I18n::Backend::Simple#translations $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:61
                                                              • Enumerable#inject $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:74
                                                                • Array#each $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:74
                                                                  • I18n::Backend::Simple#block in lookup $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:74
                                                                    • Symbol#to_sym $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:75
                                                                    • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:76
                                                                    • Hash#has_key? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:76
                                                                    • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:78
                                                                  • I18n::Backend::Simple#block in lookup $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:74
                                                                    • Symbol#to_sym $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:75
                                                                    • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:76
                                                                    • Hash#has_key? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:76
                                                            • NilClass#nil? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:28
                                                            • Hash#key? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:28
                                                            • I18n::Backend::Simple#resolve $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:117
                                                              • Kernel#catch $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:119
                                                                • I18n::Backend::Simple#block in resolve $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:119
                                                                  • Module#=== $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:121
                                                                  • Module#=== $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:123
                                                              • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:130
                                                            • NilClass#nil? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:34
                                                            • Hash#key? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:35
                                                            • Hash#key? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:35
                                                            • Class#new $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:36
                                                              • I18n::MissingTranslation#initialize $GemPath0/gems/i18n-0.8.4/lib/i18n/exceptions.rb:45
                                                                • Kernel#dup $GemPath0/gems/i18n-0.8.4/lib/i18n/exceptions.rb:46
                                                                  • Kernel#initialize_dup $GemPath0/gems/i18n-0.8.4/lib/i18n/exceptions.rb:46
                                                                    • Hash#initialize_copy $GemPath0/gems/i18n-0.8.4/lib/i18n/exceptions.rb:46
                                                                • Hash#each $GemPath0/gems/i18n-0.8.4/lib/i18n/exceptions.rb:47
                                                                  • I18n::MissingTranslation#block in initialize $GemPath0/gems/i18n-0.8.4/lib/i18n/exceptions.rb:47
                                                                    • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/exceptions.rb:47
                                                            • Kernel#throw $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:36
                                                      • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:161
                                                      • I18n.handle_exception $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:308
                                                        • Kernel#throw $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:313
                                                • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:130
                                            • I18n::Backend::Simple#block in default $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:105
                                              • I18n::Backend::Simple#resolve $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:117
                                                • Kernel#catch $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:119
                                                  • I18n::Backend::Simple#block in resolve $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:119
                                                    • Module#=== $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:121
                                                    • Module#=== $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:123
                                                • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:130
                                        • Kernel#nil? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:34
                                        • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:40
                                        • Kernel#dup $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:40
                                          • Kernel#initialize_dup $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:40
                                            • String#initialize_copy $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:40
                                        • I18n::Backend::Simple#pluralize $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:141
                                          • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:142
                                        • Hash#except $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:10
                                          • Kernel#dup $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:11
                                            • Kernel#initialize_dup $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:11
                                              • Hash#initialize_copy $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:11
                                          • Hash#except! $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:18
                                            • Array#each $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                              • Hash#block in except! $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                                • Hash#delete $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                              • Hash#block in except! $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                                • Hash#delete $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                              • Hash#block in except! $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                                • Hash#delete $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                              • Hash#block in except! $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                                • Hash#delete $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                              • Hash#block in except! $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                                • Hash#delete $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                              • Hash#block in except! $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                                • Hash#delete $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                              • Hash#block in except! $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                                • Hash#delete $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                              • Hash#block in except! $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                                • Hash#delete $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                              • Hash#block in except! $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                                • Hash#delete $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                              • Hash#block in except! $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                                • Hash#delete $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                              • Hash#block in except! $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                                • Hash#delete $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                        • I18n::Backend::Simple#interpolate $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:154
                                          • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:155
                                          • I18n.interpolate $GemPath0/gems/i18n-0.8.4/lib/i18n/interpolate/ruby.rb:14
                                            • String#=~ $GemPath0/gems/i18n-0.8.4/lib/i18n/interpolate/ruby.rb:15
                                            • Kernel#kind_of? $GemPath0/gems/i18n-0.8.4/lib/i18n/interpolate/ruby.rb:16
                                            • I18n.interpolate_hash $GemPath0/gems/i18n-0.8.4/lib/i18n/interpolate/ruby.rb:20
                                              • String#gsub $GemPath0/gems/i18n-0.8.4/lib/i18n/interpolate/ruby.rb:21
                                  • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:161
                          • SimpleForm::Inputs::StringInput#html_escape $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:19
                            • SimpleForm::Inputs::StringInput#unwrapped_html_escape $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:34
                              • String#to_s $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:35
                              • String#html_safe? $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:123
                              • ActiveSupport::Multibyte::Unicode.tidy_bytes $GemPath0/gems/activesupport-5.0.4/lib/active_support/multibyte/unicode.rb:245
                                • String#scrub $GemPath0/gems/activesupport-5.0.4/lib/active_support/multibyte/unicode.rb:248
                              • CGI::Escape#escapeHTML $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:39
                            • String#html_safe $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:257
                              • Class#new $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:258
                                • ActiveSupport::SafeBuffer#initialize $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:174
                                  • String#initialize $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:176
                          • SimpleForm::Inputs::StringInput#required_label_text $GemPath0/gems/simple_form-3.5.0/lib/simple_form/components/labels.rb:63
                            • SimpleForm::Inputs::StringInput#required_field? $GemPath0/gems/simple_form-3.5.0/lib/simple_form/helpers/required.rb:6
                          • NilClass#present? $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/object/blank.rb:21
                            • NilClass#blank? $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/object/blank.rb:52
                          • SimpleForm.block in <module:SimpleForm> $GemPath0/gems/simple_form-3.5.0/lib/simple_form.rb:87
                          • String#strip $GemPath0/gems/simple_form-3.5.0/lib/simple_form/components/labels.rb:36
                          • String#html_safe $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:257
                            • Class#new $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:258
                              • ActiveSupport::SafeBuffer#initialize $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:174
                                • String#initialize $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:176
                        • SimpleForm::FormBuilder#label $GemPath0/gems/simple_form-3.5.0/lib/simple_form/form_builder.rb:298
                          • Array#first $GemPath0/gems/simple_form-3.5.0/lib/simple_form/form_builder.rb:299
                          • Kernel#is_a? $GemPath0/gems/simple_form-3.5.0/lib/simple_form/form_builder.rb:299
                          • SimpleForm::FormBuilder#label $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/form_helper.rb:1637
                            • SimpleForm::FormBuilder#objectify_options $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/form_helper.rb:1867
                              • Hash#merge $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/form_helper.rb:1868
                                • Kernel#initialize_dup $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/form_helper.rb:1868
                                  • Hash#initialize_copy $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/form_helper.rb:1868
                              • Hash#merge $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/form_helper.rb:1868
                                • Kernel#initialize_dup $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/form_helper.rb:1868
                                  • Hash#initialize_copy $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/form_helper.rb:1868
                            • #<Class:0x007f253c11b260>#label $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/form_helper.rb:771
                              • Class#new $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/form_helper.rb:772
                                • ActionView::Helpers::Tags::Label#initialize $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tags/label.rb:28
                                  • Kernel#is_a? $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tags/label.rb:31
                                  • ActionView::Helpers::Tags::Label#initialize $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tags/base.rb:10
                                    • String#to_s $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tags/base.rb:11
                                    • Kernel#dup $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tags/base.rb:11
                                      • Kernel#initialize_dup $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tags/base.rb:11
                                        • String#initialize_copy $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tags/base.rb:11
                                    • Symbol#to_s $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tags/base.rb:11
                                    • Kernel#dup $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tags/base.rb:11
                                      • Kernel#initialize_dup $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tags/base.rb:11
                                        • String#initialize_copy $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tags/base.rb:11
                                    • String#sub! $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tags/base.rb:14
                                    • String#sub! $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tags/base.rb:14
                                    • Hash#delete $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tags/base.rb:15
                                    • ActionView::Helpers::Tags::Label#retrieve_object $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tags/base.rb:55
                                    • #<Class:Regexp>#last_match $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tags/base.rb:18
                              • ActionView::Helpers::Tags::Label#render $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tags/label.rb:42
                                • Hash#stringify_keys $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/keys.rb:37
                                  • Hash#transform_keys $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/keys.rb:12
                                    • Kernel#block_given? $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/keys.rb:13
                                    • Hash#each_key $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/keys.rb:15
                                      • Hash#block in transform_keys $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/keys.rb:15
                                        • Symbol#to_s $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/keys.rb:16
                                • Hash#delete $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tags/label.rb:44
                                • Kernel#dup $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tags/label.rb:45
                                  • Kernel#initialize_dup $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tags/label.rb:45
                                    • Hash#initialize_copy $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tags/label.rb:45
                                • Hash#delete $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tags/label.rb:50
                                • ActionView::Helpers::Tags::Label#add_default_name_and_id_for_value $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tags/base.rb:75
                                  • NilClass#nil? $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tags/base.rb:76
                                  • ActionView::Helpers::Tags::Label#add_default_name_and_id $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tags/base.rb:88
                                    • ActionView::Helpers::Tags::Label#name_and_id_index $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tags/base.rb:161
                                      • Hash#key? $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tags/base.rb:162
                                    • Hash#fetch $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tags/base.rb:90
                                      • ActionView::Helpers::Tags::Label#block in add_default_name_and_id $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tags/base.rb:90
                                        • ActionView::Helpers::Tags::Label#tag_name $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tags/base.rb:97
                                          • ActionView::Helpers::Tags::Label#sanitized_method_name $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tags/base.rb:119
                                            • String#sub $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tags/base.rb:120
                                          • NilClass#to_s $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tags/base.rb:102
                                    • Hash#fetch $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tags/base.rb:91
                                      • ActionView::Helpers::Tags::Label#block in add_default_name_and_id $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tags/base.rb:91
                                        • ActionView::Helpers::Tags::Label#tag_id $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tags/base.rb:106
                                          • ActionView::Helpers::Tags::Label#sanitized_object_name $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tags/base.rb:115
                                            • String#gsub $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tags/base.rb:116
                                            • String#sub $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tags/base.rb:116
                                          • ActionView::Helpers::Tags::Label#sanitized_method_name $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tags/base.rb:119
                                    • Hash#delete $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tags/base.rb:92
                                • Hash#delete $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tags/label.rb:54
                                • Hash#delete $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tags/label.rb:55
                                • Hash#key? $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tags/label.rb:56
                                • Class#new $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tags/label.rb:58
                                  • ActionView::Helpers::Tags::Label::LabelBuilder#initialize $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tags/label.rb:8
                                • Kernel#block_given? $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tags/label.rb:60
                                • ActiveSupport::SafeBuffer#present? $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/object/blank.rb:21
                                  • ActiveSupport::SafeBuffer#blank? $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/object/blank.rb:114
                                    • String#empty? $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/object/blank.rb:118
                                    • Regexp#=== $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/object/blank.rb:118
                                • ActiveSupport::SafeBuffer#to_s $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:216
                                • ActionView::Helpers::Tags::Label#label_tag $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/form_tag_helper.rb:208
                                  • Kernel#block_given? $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/form_tag_helper.rb:209
                                  • Hash#stringify_keys $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/keys.rb:37
                                    • Hash#transform_keys $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/keys.rb:12
                                      • Kernel#block_given? $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/keys.rb:13
                                      • Hash#each_key $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/keys.rb:15
                                        • Hash#block in transform_keys $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/keys.rb:15
                                          • String#to_s $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/keys.rb:16
                                        • Hash#block in transform_keys $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/keys.rb:15
                                          • String#to_s $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/keys.rb:16
                                  • String#blank? $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/object/blank.rb:114
                                    • Regexp#=== $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/object/blank.rb:118
                                  • Hash#has_key? $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/form_tag_helper.rb:215
                                  • ActionView::Helpers::Tags::Label#content_tag $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/active_model_helper.rb:18
                                    • ActionView::Helpers::Tags::Label#content_tag $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tag_helper.rb:104
                                      • Kernel#block_given? $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tag_helper.rb:105
                                      • ActionView::Helpers::Tags::Label#content_tag_string $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tag_helper.rb:144
                                        • ActionView::Helpers::Tags::Label#tag_options $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tag_helper.rb:150
                                          • Hash#empty? $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tag_helper.rb:151
                                          • Hash#each_pair $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tag_helper.rb:154
                                            • ActionView::Helpers::Tags::Label#block in tag_options $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tag_helper.rb:154
                                              • Set#include? /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/set.rb:232
                                              • Set#include? /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/set.rb:232
                                              • Kernel#nil? $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tag_helper.rb:166
                                              • ActionView::Helpers::Tags::Label#tag_option $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tag_helper.rb:186
                                                • Kernel#is_a? $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tag_helper.rb:187
                                                • ActionView::Helpers::Tags::Label#safe_join $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/output_safety_helper.rb:31
                                                  • ERB::Util.unwrapped_html_escape $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:34
                                                    • String#to_s $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:35
                                                    • String#html_safe? $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:123
                                                    • ActiveSupport::Multibyte::Unicode.tidy_bytes $GemPath0/gems/activesupport-5.0.4/lib/active_support/multibyte/unicode.rb:245
                                                      • String#scrub $GemPath0/gems/activesupport-5.0.4/lib/active_support/multibyte/unicode.rb:248
                                                    • CGI::Escape#escapeHTML $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:39
                                                  • Array#flatten $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/output_safety_helper.rb:34
                                                  • Array#map! $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/output_safety_helper.rb:34
                                                    • ActionView::Helpers::Tags::Label#block in safe_join $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/output_safety_helper.rb:34
                                                      • ERB::Util.unwrapped_html_escape $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:34
                                                        • Symbol#to_s $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:35
                                                        • String#html_safe? $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:123
                                                        • ActiveSupport::Multibyte::Unicode.tidy_bytes $GemPath0/gems/activesupport-5.0.4/lib/active_support/multibyte/unicode.rb:245
                                                          • String#scrub $GemPath0/gems/activesupport-5.0.4/lib/active_support/multibyte/unicode.rb:248
                                                        • CGI::Escape#escapeHTML $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:39
                                                    • ActionView::Helpers::Tags::Label#block in safe_join $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/output_safety_helper.rb:34
                                                      • ERB::Util.unwrapped_html_escape $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:34
                                                        • Symbol#to_s $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:35
                                                        • String#html_safe? $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:123
                                                        • ActiveSupport::Multibyte::Unicode.tidy_bytes $GemPath0/gems/activesupport-5.0.4/lib/active_support/multibyte/unicode.rb:245
                                                          • String#scrub $GemPath0/gems/activesupport-5.0.4/lib/active_support/multibyte/unicode.rb:248
                                                        • CGI::Escape#escapeHTML $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:39
                                                  • Array#join $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/output_safety_helper.rb:34
                                                  • String#html_safe $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:257
                                                    • Class#new $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:258
                                                      • ActiveSupport::SafeBuffer#initialize $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:174
                                                        • String#initialize $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:176
                                                • ActiveSupport::SafeBuffer#gsub $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:231
                                                  • String#to_str $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:232
                                                  • String#gsub $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:232
                                            • ActionView::Helpers::Tags::Label#block in tag_options $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tag_helper.rb:154
                                              • Set#include? /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/set.rb:232
                                              • Set#include? /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/set.rb:232
                                              • Kernel#nil? $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tag_helper.rb:166
                                              • ActionView::Helpers::Tags::Label#tag_option $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tag_helper.rb:186
                                                • Kernel#is_a? $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tag_helper.rb:187
                                                • ERB::Util.unwrapped_html_escape $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:34
                                                  • String#to_s $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:35
                                                  • String#html_safe? $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:123
                                                  • ActiveSupport::Multibyte::Unicode.tidy_bytes $GemPath0/gems/activesupport-5.0.4/lib/active_support/multibyte/unicode.rb:245
                                                    • String#scrub $GemPath0/gems/activesupport-5.0.4/lib/active_support/multibyte/unicode.rb:248
                                                  • CGI::Escape#escapeHTML $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:39
                                                • String#gsub $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tag_helper.rb:192
                                        • ERB::Util.unwrapped_html_escape $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:34
                                          • ActiveSupport::SafeBuffer#to_s $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:216
                                          • ActiveSupport::SafeBuffer#html_safe? $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:212
                                        • Symbol#to_s $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tag_helper.rb:147
                                        • ActionView::Helpers::TagHelper.block in <module:TagHelper> $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tag_helper.rb:25
                                        • Symbol#to_s $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tag_helper.rb:147
                                        • String#html_safe $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:257
                                          • Class#new $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:258
                                            • ActiveSupport::SafeBuffer#initialize $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:174
                                              • String#initialize $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:176
                                    • ActionView::Helpers::Tags::Label#error_wrapping $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/active_model_helper.rb:26
                                      • ActionView::Helpers::Tags::Label#object_has_errors? $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/active_model_helper.rb:40
                                        • Student#respond_to? $GemPath0/gems/activerecord-5.0.4/lib/active_record/attribute_methods.rb:219
                                          • Student#respond_to? $GemPath0/gems/activemodel-5.0.4/lib/active_model/attribute_methods.rb:449
                                            • Kernel#respond_to? $GemPath0/gems/activemodel-5.0.4/lib/active_model/attribute_methods.rb:450
                                          • Symbol#to_s $GemPath0/gems/activerecord-5.0.4/lib/active_record/attribute_methods.rb:228
                                          • Kernel#class $GemPath0/gems/activerecord-5.0.4/lib/active_record/attribute_methods.rb:235
                                          • Student.column_names $GemPath0/gems/activerecord-5.0.4/lib/active_record/model_schema.rb:388
                                          • Array#include? $GemPath0/gems/activerecord-5.0.4/lib/active_record/attribute_methods.rb:235
                                        • Student#errors $GemPath0/gems/activemodel-5.0.4/lib/active_model/validations.rb:300
                                        • Kernel#respond_to? $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/active_model_helper.rb:41
                                        • ActionView::Helpers::Tags::Label#error_message $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/active_model_helper.rb:34
                                          • Student#errors $GemPath0/gems/activemodel-5.0.4/lib/active_model/validations.rb:300
                                          • ActiveModel::Errors#[] $GemPath0/gems/activemodel-5.0.4/lib/active_model/errors.rb:172
                                            • String#to_sym $GemPath0/gems/activemodel-5.0.4/lib/active_model/errors.rb:173
                                        • Array#present? $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/object/blank.rb:21
                                          • Array#empty? $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/object/blank.rb:22
                  • SimpleForm::Inputs::StringInput#deprecated_component $GemPath0/gems/simple_form-3.5.0/lib/simple_form/components/label_input.rb:20
                    • Kernel#method $GemPath0/gems/simple_form-3.5.0/lib/simple_form/components/label_input.rb:21
                    • Method#arity $GemPath0/gems/simple_form-3.5.0/lib/simple_form/components/label_input.rb:23
                    • Method#call $GemPath0/gems/simple_form-3.5.0/lib/simple_form/components/label_input.rb:28
                      • SimpleForm::Inputs::StringInput#input $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/string_input.rb:6
                        • SimpleForm::Inputs::StringInput#string? $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/string_input.rb:19
                        • SimpleForm::Inputs::StringInput#merge_wrapper_options $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:191
                          • Hash#merge $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:193
                            • Kernel#initialize_dup $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:193
                              • Hash#initialize_copy $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:193
                        • SimpleForm::FormBuilder#text_field $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/form_helper.rb:1301
                          • SimpleForm::FormBuilder#objectify_options $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/form_helper.rb:1867
                            • Hash#merge $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/form_helper.rb:1868
                              • Kernel#initialize_dup $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/form_helper.rb:1868
                                • Hash#initialize_copy $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/form_helper.rb:1868
                            • Hash#merge $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/form_helper.rb:1868
                              • Kernel#initialize_dup $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/form_helper.rb:1868
                                • Hash#initialize_copy $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/form_helper.rb:1868
                          • #<Class:0x007f253c11b260>#text_field $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/form_helper.rb:792
                            • Class#new $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/form_helper.rb:793
                              • ActionView::Helpers::Tags::TextField#initialize $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tags/placeholderable.rb:5
                                • ActionView::Helpers::Tags::TextField#initialize $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tags/base.rb:10
                                  • String#to_s $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tags/base.rb:11
                                  • Kernel#dup $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tags/base.rb:11
                                    • Kernel#initialize_dup $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tags/base.rb:11
                                      • String#initialize_copy $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tags/base.rb:11
                                  • Symbol#to_s $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tags/base.rb:11
                                  • Kernel#dup $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tags/base.rb:11
                                    • Kernel#initialize_dup $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tags/base.rb:11
                                      • String#initialize_copy $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tags/base.rb:11
                                  • String#sub! $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tags/base.rb:14
                                  • String#sub! $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tags/base.rb:14
                                  • Hash#delete $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tags/base.rb:15
                                  • ActionView::Helpers::Tags::TextField#retrieve_object $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tags/base.rb:55
                                  • #<Class:Regexp>#last_match $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tags/base.rb:18
                            • ActionView::Helpers::Tags::TextField#render $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tags/text_field.rb:9
                              • Hash#stringify_keys $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/keys.rb:37
                                • Hash#transform_keys $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/keys.rb:12
                                  • Kernel#block_given? $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/keys.rb:13
                                  • Hash#each_key $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/keys.rb:15
                                    • Hash#block in transform_keys $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/keys.rb:15
                                      • Symbol#to_s $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/keys.rb:16
                                    • Hash#block in transform_keys $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/keys.rb:15
                                      • Symbol#to_s $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/keys.rb:16
                                    • Hash#block in transform_keys $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/keys.rb:15
                                      • Symbol#to_s $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/keys.rb:16
                                    • Hash#block in transform_keys $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/keys.rb:15
                                      • Symbol#to_s $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/keys.rb:16
                                    • Hash#block in transform_keys $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/keys.rb:15
                                      • Symbol#to_s $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/keys.rb:16
                                    • Hash#block in transform_keys $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/keys.rb:15
                                      • Symbol#to_s $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/keys.rb:16
                                    • Hash#block in transform_keys $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/keys.rb:15
                                      • Symbol#to_s $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/keys.rb:16
                              • Hash#key? $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tags/text_field.rb:11
                              • ActionView::Helpers::Tags::TextField#field_type $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tags/text_field.rb:26
                                • Kernel#class $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tags/text_field.rb:27
                                • ActionView::Helpers::Tags::TextField.field_type $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tags/text_field.rb:19
                              • ActionView::Helpers::Tags::TextField#field_type $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tags/text_field.rb:26
                                • Kernel#class $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tags/text_field.rb:27
                                • ActionView::Helpers::Tags::TextField.field_type $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tags/text_field.rb:19
                              • Hash#fetch $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tags/text_field.rb:13
                                • ActionView::Helpers::Tags::TextField#block in render $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tags/text_field.rb:13
                                  • ActionView::Helpers::Tags::TextField#value_before_type_cast $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tags/base.rb:38
                                    • Kernel#nil? $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tags/base.rb:39
                                    • ActionView::Helpers::Tags::TextField#value_came_from_user? $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tags/base.rb:50
                                      • Student#respond_to? $GemPath0/gems/activerecord-5.0.4/lib/active_record/attribute_methods.rb:219
                                        • Student#respond_to? $GemPath0/gems/activemodel-5.0.4/lib/active_model/attribute_methods.rb:449
                                          • Kernel#respond_to? $GemPath0/gems/activemodel-5.0.4/lib/active_model/attribute_methods.rb:450
                                        • String#to_s $GemPath0/gems/activerecord-5.0.4/lib/active_record/attribute_methods.rb:228
                                        • Kernel#class $GemPath0/gems/activerecord-5.0.4/lib/active_record/attribute_methods.rb:235
                                        • Student.column_names $GemPath0/gems/activerecord-5.0.4/lib/active_record/model_schema.rb:388
                                        • Array#include? $GemPath0/gems/activerecord-5.0.4/lib/active_record/attribute_methods.rb:235
                                      • Kernel#public_send $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tags/base.rb:52
                                        • Student#name_came_from_user? $GemPath0/gems/activemodel-5.0.4/lib/active_model/attribute_methods.rb:384
                                          • Student#attribute_came_from_user? $GemPath0/gems/activerecord-5.0.4/lib/active_record/attribute_methods/before_type_cast.rb:71
                                            • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-5.0.4/lib/active_record/attribute_set.rb:11
                                            • ActiveRecord::Attribute::FromDatabase#came_from_user? $GemPath0/gems/activerecord-5.0.4/lib/active_record/attribute.rb:91
                                    • ActionView::Helpers::Tags::TextField#value $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tags/base.rb:34
                                      • Kernel#public_send $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tags/base.rb:35
                                        • Student#__temp__e616d656 $GemPath0/gems/activerecord-5.0.4/lib/active_record/attribute_methods/read.rb:34
                                          • Student#_read_attribute $GemPath0/gems/activerecord-5.0.4/lib/active_record/attribute_methods/read.rb:65
                                            • String#to_s $GemPath0/gems/activerecord-5.0.4/lib/active_record/attribute_methods/read.rb:66
                                            • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-5.0.4/lib/active_record/attribute_set.rb:43
                                              • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-5.0.4/lib/active_record/attribute_set.rb:11
                                              • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-5.0.4/lib/active_record/attribute.rb:36
                              • ActionView::Helpers::Tags::TextField#add_default_name_and_id $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tags/base.rb:88
                                • ActionView::Helpers::Tags::TextField#name_and_id_index $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tags/base.rb:161
                                  • Hash#key? $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tags/base.rb:162
                                • Hash#fetch $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tags/base.rb:90
                                  • ActionView::Helpers::Tags::TextField#block in add_default_name_and_id $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tags/base.rb:90
                                    • ActionView::Helpers::Tags::TextField#tag_name $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tags/base.rb:97
                                      • ActionView::Helpers::Tags::TextField#sanitized_method_name $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tags/base.rb:119
                                        • String#sub $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tags/base.rb:120
                                      • NilClass#to_s $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tags/base.rb:102
                                • Hash#fetch $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tags/base.rb:91
                                  • ActionView::Helpers::Tags::TextField#block in add_default_name_and_id $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tags/base.rb:91
                                    • ActionView::Helpers::Tags::TextField#tag_id $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tags/base.rb:106
                                      • ActionView::Helpers::Tags::TextField#sanitized_object_name $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tags/base.rb:115
                                        • String#gsub $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tags/base.rb:116
                                        • String#sub $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tags/base.rb:116
                                      • ActionView::Helpers::Tags::TextField#sanitized_method_name $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tags/base.rb:119
                                • Hash#delete $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tags/base.rb:92
                              • ActionView::Helpers::Tags::TextField#tag $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/active_model_helper.rb:22
                                • ActionView::Helpers::Tags::TextField#tag_generate_errors? $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/active_model_helper.rb:44
                                • ActionView::Helpers::Tags::TextField#tag $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tag_helper.rb:75
                                  • ActionView::Helpers::Tags::TextField#tag_options $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tag_helper.rb:150
                                    • Hash#empty? $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tag_helper.rb:151
                                    • Hash#each_pair $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tag_helper.rb:154
                                      • ActionView::Helpers::Tags::TextField#block in tag_options $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tag_helper.rb:154
                                        • Set#include? /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/set.rb:232
                                        • Set#include? /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/set.rb:232
                                        • Kernel#nil? $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tag_helper.rb:166
                                        • ActionView::Helpers::Tags::TextField#tag_option $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tag_helper.rb:186
                                          • Kernel#is_a? $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tag_helper.rb:187
                                          • ActionView::Helpers::Tags::TextField#safe_join $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/output_safety_helper.rb:31
                                            • ERB::Util.unwrapped_html_escape $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:34
                                              • String#to_s $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:35
                                              • String#html_safe? $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:123
                                              • ActiveSupport::Multibyte::Unicode.tidy_bytes $GemPath0/gems/activesupport-5.0.4/lib/active_support/multibyte/unicode.rb:245
                                                • String#scrub $GemPath0/gems/activesupport-5.0.4/lib/active_support/multibyte/unicode.rb:248
                                              • CGI::Escape#escapeHTML $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:39
                                            • Array#flatten $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/output_safety_helper.rb:34
                                            • Array#map! $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/output_safety_helper.rb:34
                                              • ActionView::Helpers::Tags::TextField#block in safe_join $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/output_safety_helper.rb:34
                                                • ERB::Util.unwrapped_html_escape $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:34
                                                  • Symbol#to_s $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:35
                                                  • String#html_safe? $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:123
                                                  • ActiveSupport::Multibyte::Unicode.tidy_bytes $GemPath0/gems/activesupport-5.0.4/lib/active_support/multibyte/unicode.rb:245
                                                    • String#scrub $GemPath0/gems/activesupport-5.0.4/lib/active_support/multibyte/unicode.rb:248
                                                  • CGI::Escape#escapeHTML $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:39
                                              • ActionView::Helpers::Tags::TextField#block in safe_join $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/output_safety_helper.rb:34
                                                • ERB::Util.unwrapped_html_escape $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:34
                                                  • Symbol#to_s $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:35
                                                  • String#html_safe? $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:123
                                                  • ActiveSupport::Multibyte::Unicode.tidy_bytes $GemPath0/gems/activesupport-5.0.4/lib/active_support/multibyte/unicode.rb:245
                                                    • String#scrub $GemPath0/gems/activesupport-5.0.4/lib/active_support/multibyte/unicode.rb:248
                                                  • CGI::Escape#escapeHTML $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:39
                                            • Array#join $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/output_safety_helper.rb:34
                                            • String#html_safe $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:257
                                              • Class#new $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:258
                                                • ActiveSupport::SafeBuffer#initialize $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:174
                                                  • String#initialize $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:176
                                          • ActiveSupport::SafeBuffer#gsub $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:231
                                            • String#to_str $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:232
                                            • String#gsub $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:232
                                      • ActionView::Helpers::Tags::TextField#block in tag_options $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tag_helper.rb:154
                                        • Set#include? /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/set.rb:232
                                        • Set#include? /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/set.rb:232
                                      • ActionView::Helpers::Tags::TextField#block in tag_options $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tag_helper.rb:154
                                        • Set#include? /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/set.rb:232
                                        • Set#include? /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/set.rb:232
                                        • NilClass#nil? $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tag_helper.rb:166
                                      • ActionView::Helpers::Tags::TextField#block in tag_options $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tag_helper.rb:154
                                        • Set#include? /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/set.rb:232
                                        • Set#include? /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/set.rb:232
                                        • NilClass#nil? $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tag_helper.rb:166
                                      • ActionView::Helpers::Tags::TextField#block in tag_options $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tag_helper.rb:154
                                        • Set#include? /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/set.rb:232
                                        • Set#include? /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/set.rb:232
                                        • NilClass#nil? $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tag_helper.rb:166
                                      • ActionView::Helpers::Tags::TextField#block in tag_options $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tag_helper.rb:154
                                        • Set#include? /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/set.rb:232
                                        • Set#include? /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/set.rb:232
                                        • NilClass#nil? $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tag_helper.rb:166
                                      • ActionView::Helpers::Tags::TextField#block in tag_options $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tag_helper.rb:154
                                        • Set#include? /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/set.rb:232
                                        • Set#include? /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/set.rb:232
                                        • NilClass#nil? $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tag_helper.rb:166
                                      • ActionView::Helpers::Tags::TextField#block in tag_options $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tag_helper.rb:154
                                        • Set#include? /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/set.rb:232
                                        • Set#include? /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/set.rb:232
                                        • NilClass#nil? $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tag_helper.rb:166
                                      • ActionView::Helpers::Tags::TextField#block in tag_options $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tag_helper.rb:154
                                        • Set#include? /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/set.rb:232
                                        • Set#include? /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/set.rb:232
                                        • Kernel#nil? $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tag_helper.rb:166
                                        • ActionView::Helpers::Tags::TextField#tag_option $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tag_helper.rb:186
                                          • Kernel#is_a? $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tag_helper.rb:187
                                          • ERB::Util.unwrapped_html_escape $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:34
                                            • String#to_s $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:35
                                            • String#html_safe? $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:123
                                            • ActiveSupport::Multibyte::Unicode.tidy_bytes $GemPath0/gems/activesupport-5.0.4/lib/active_support/multibyte/unicode.rb:245
                                              • String#scrub $GemPath0/gems/activesupport-5.0.4/lib/active_support/multibyte/unicode.rb:248
                                            • CGI::Escape#escapeHTML $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:39
                                          • String#gsub $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tag_helper.rb:192
                                      • ActionView::Helpers::Tags::TextField#block in tag_options $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tag_helper.rb:154
                                        • Set#include? /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/set.rb:232
                                        • Set#include? /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/set.rb:232
                                        • NilClass#nil? $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tag_helper.rb:166
                                      • ActionView::Helpers::Tags::TextField#block in tag_options $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tag_helper.rb:154
                                        • Set#include? /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/set.rb:232
                                        • Set#include? /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/set.rb:232
                                        • Kernel#nil? $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tag_helper.rb:166
                                        • ActionView::Helpers::Tags::TextField#tag_option $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tag_helper.rb:186
                                          • Kernel#is_a? $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tag_helper.rb:187
                                          • ERB::Util.unwrapped_html_escape $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:34
                                            • String#to_s $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:35
                                            • String#html_safe? $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:123
                                            • ActiveSupport::Multibyte::Unicode.tidy_bytes $GemPath0/gems/activesupport-5.0.4/lib/active_support/multibyte/unicode.rb:245
                                              • String#scrub $GemPath0/gems/activesupport-5.0.4/lib/active_support/multibyte/unicode.rb:248
                                            • CGI::Escape#escapeHTML $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:39
                                          • String#gsub $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tag_helper.rb:192
                                      • ActionView::Helpers::Tags::TextField#block in tag_options $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tag_helper.rb:154
                                        • Set#include? /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/set.rb:232
                                        • Set#include? /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/set.rb:232
                                        • Kernel#nil? $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tag_helper.rb:166
                                        • ActionView::Helpers::Tags::TextField#tag_option $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tag_helper.rb:186
                                          • Kernel#is_a? $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tag_helper.rb:187
                                          • ERB::Util.unwrapped_html_escape $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:34
                                            • String#to_s $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:35
                                            • String#html_safe? $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:123
                                            • ActiveSupport::Multibyte::Unicode.tidy_bytes $GemPath0/gems/activesupport-5.0.4/lib/active_support/multibyte/unicode.rb:245
                                              • String#scrub $GemPath0/gems/activesupport-5.0.4/lib/active_support/multibyte/unicode.rb:248
                                            • CGI::Escape#escapeHTML $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:39
                                          • String#gsub $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tag_helper.rb:192
                                  • String#html_safe $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:257
                                    • Class#new $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:258
                                      • ActiveSupport::SafeBuffer#initialize $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:174
                                        • String#initialize $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:176
                                • ActionView::Helpers::Tags::TextField#error_wrapping $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/active_model_helper.rb:26
                                  • ActionView::Helpers::Tags::TextField#object_has_errors? $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/active_model_helper.rb:40
                                    • Student#respond_to? $GemPath0/gems/activerecord-5.0.4/lib/active_record/attribute_methods.rb:219
                                      • Student#respond_to? $GemPath0/gems/activemodel-5.0.4/lib/active_model/attribute_methods.rb:449
                                        • Kernel#respond_to? $GemPath0/gems/activemodel-5.0.4/lib/active_model/attribute_methods.rb:450
                                      • Symbol#to_s $GemPath0/gems/activerecord-5.0.4/lib/active_record/attribute_methods.rb:228
                                      • Kernel#class $GemPath0/gems/activerecord-5.0.4/lib/active_record/attribute_methods.rb:235
                                      • Student.column_names $GemPath0/gems/activerecord-5.0.4/lib/active_record/model_schema.rb:388
                                      • Array#include? $GemPath0/gems/activerecord-5.0.4/lib/active_record/attribute_methods.rb:235
                                    • Student#errors $GemPath0/gems/activemodel-5.0.4/lib/active_model/validations.rb:300
                                    • Kernel#respond_to? $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/active_model_helper.rb:41
                                    • ActionView::Helpers::Tags::TextField#error_message $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/active_model_helper.rb:34
                                      • Student#errors $GemPath0/gems/activemodel-5.0.4/lib/active_model/validations.rb:300
                                      • ActiveModel::Errors#[] $GemPath0/gems/activemodel-5.0.4/lib/active_model/errors.rb:172
                                        • String#to_sym $GemPath0/gems/activemodel-5.0.4/lib/active_model/errors.rb:173
                                    • Array#present? $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/object/blank.rb:21
                                      • Array#empty? $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/object/blank.rb:22
                  • ActiveSupport::SafeBuffer#+ $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:197
                    • Kernel#dup $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:198
                      • Kernel#initialize_dup $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:198
                        • ActiveSupport::SafeBuffer#initialize_copy $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:179
                          • String#initialize_copy $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:180
                          • ActiveSupport::SafeBuffer#html_safe? $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:212
                    • ActiveSupport::SafeBuffer#concat $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:188
                      • ActiveSupport::SafeBuffer#html_escape_interpolated_argument $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:245
                        • ActiveSupport::SafeBuffer#html_safe? $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:212
                        • ActiveSupport::SafeBuffer#html_safe? $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:212
                      • String#concat $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:189
            • ActiveSupport::SafeBuffer#to_s $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:216
            • ActiveSupport::SafeBuffer#safe_concat $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:169
              • ActiveSupport::SafeBuffer#html_safe? $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:212
              • ActiveSupport::SafeBuffer#concat $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:171
          • SimpleForm::Wrappers::Root#block in render $GemPath0/gems/simple_form-3.5.0/lib/simple_form/wrappers/many.rb:26
            • SimpleForm::Wrappers::Single#render $GemPath0/gems/simple_form-3.5.0/lib/simple_form/wrappers/single.rb:11
              • SimpleForm::Wrappers::Leaf#render $GemPath0/gems/simple_form-3.5.0/lib/simple_form/wrappers/leaf.rb:11
                • Kernel#method $GemPath0/gems/simple_form-3.5.0/lib/simple_form/wrappers/leaf.rb:12
                • Method#arity $GemPath0/gems/simple_form-3.5.0/lib/simple_form/wrappers/leaf.rb:14
                • Method#call $GemPath0/gems/simple_form-3.5.0/lib/simple_form/wrappers/leaf.rb:19
                  • SimpleForm::Inputs::StringInput#hint $GemPath0/gems/simple_form-3.5.0/lib/simple_form/components/hints.rb:5
                    • Kernel#is_a? $GemPath0/gems/simple_form-3.5.0/lib/simple_form/components/hints.rb:9
                    • SimpleForm::Inputs::StringInput#translate_from_namespace $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:173
                      • SimpleForm::Inputs::StringInput#lookup_model_names $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:33
                        • SimpleForm::FormBuilder#lookup_model_names $GemPath0/gems/simple_form-3.5.0/lib/simple_form/form_builder.rb:437
                      • Kernel#dup $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:174
                        • Kernel#initialize_dup $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:174
                          • Array#initialize_copy $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:174
                      • Array#join $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:178
                      • Array#shift $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:179
                      • SimpleForm::Inputs::StringInput#lookup_action $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:33
                        • SimpleForm::FormBuilder#lookup_action $GemPath0/gems/simple_form-3.5.0/lib/simple_form/form_builder.rb:448
                      • SimpleForm::Inputs::StringInput#reflection_or_attribute_name $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:127
                      • Symbol#to_s $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:181
                      • String#intern $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:181
                      • SimpleForm::Inputs::StringInput#reflection_or_attribute_name $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:127
                      • Symbol#to_s $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:182
                      • String#intern $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:182
                      • SimpleForm::Inputs::StringInput#lookup_action $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:33
                        • SimpleForm::FormBuilder#lookup_action $GemPath0/gems/simple_form-3.5.0/lib/simple_form/form_builder.rb:448
                      • SimpleForm::Inputs::StringInput#reflection_or_attribute_name $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:127
                      • Symbol#to_s $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:184
                      • String#intern $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:184
                      • SimpleForm::Inputs::StringInput#reflection_or_attribute_name $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:127
                      • Symbol#to_s $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:185
                      • String#intern $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:185
                      • Array#shift $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:188
                      • SimpleForm::Inputs::StringInput#i18n_scope $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:208
                        • SimpleForm.i18n_scope $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/module/attribute_accessors.rb:60
                      • Symbol#to_s $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:188
                      • String#intern $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:188
                      • I18n.translate $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:144
                        • Array#last $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                        • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                        • Array#pop $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                        • Kernel#dup $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                          • Kernel#initialize_dup $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                            • Hash#initialize_copy $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                        • Array#shift $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:146
                        • I18n.config $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:17
                          • #<Class:Thread>#current $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                          • Thread#[] $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                        • ActionView::I18nProxy#backend $GemPath0/gems/i18n-0.8.4/lib/i18n/config.rb:18
                        • Hash#delete $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:148
                        • I18n.config $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:17
                          • #<Class:Thread>#current $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                          • Thread#[] $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                        • ActionView::I18nProxy#locale $GemPath0/gems/actionview-5.0.4/lib/action_view/rendering.rb:14
                          • I18n::Config#locale $GemPath0/gems/i18n-0.8.4/lib/i18n/config.rb:7
                            • I18n::Config#default_locale $GemPath0/gems/i18n-0.8.4/lib/i18n/config.rb:28
                        • Hash#delete $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:149
                        • Hash#delete $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:149
                        • I18n.enforce_available_locales! $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:282
                          • I18n.config $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:17
                            • #<Class:Thread>#current $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                            • Thread#[] $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                          • ActionView::I18nProxy#enforce_available_locales $GemPath0/gems/i18n-0.8.4/lib/i18n/config.rb:134
                          • I18n.locale_available? $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:277
                            • I18n.config $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:17
                              • #<Class:Thread>#current $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                              • Thread#[] $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                            • ActionView::I18nProxy#available_locales_set $GemPath0/gems/i18n-0.8.4/lib/i18n/config.rb:48
                            • Set#include? /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/set.rb:232
                        • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:152
                        • Kernel#catch $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:154
                          • I18n.block in translate $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:154
                            • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:155
                            • I18n::Backend::Simple#translate $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:24
                              • Kernel#nil? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:26
                              • I18n::Backend::Simple#lookup $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:70
                                • I18n::Backend::Simple#initialized? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:23
                                • I18n.normalize_keys $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:265
                                  • I18n.default_separator $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:30
                                    • I18n.config $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:17
                                      • #<Class:Thread>#current $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                      • Thread#[] $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                    • ActionView::I18nProxy#default_separator $GemPath0/gems/i18n-0.8.4/lib/i18n/config.rb:68
                                  • I18n.normalize_key $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:324
                                    • I18n.normalized_key_cache $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:337
                                  • Array#concat $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:269
                                  • I18n.normalize_key $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:324
                                    • I18n.normalized_key_cache $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:337
                                  • Array#concat $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:270
                                  • I18n.normalize_key $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:324
                                    • I18n.normalized_key_cache $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:337
                                  • Array#concat $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:271
                                • I18n::Backend::Simple#translations $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:61
                                • Enumerable#inject $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:74
                                  • Array#each $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:74
                                    • I18n::Backend::Simple#block in lookup $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:74
                                      • Symbol#to_sym $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:75
                                      • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:76
                                      • Hash#has_key? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:76
                                      • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:78
                                    • I18n::Backend::Simple#block in lookup $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:74
                                      • Symbol#to_sym $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:75
                                      • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:76
                                      • Hash#has_key? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:76
                              • NilClass#nil? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:28
                              • Hash#key? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:28
                              • I18n::Backend::Simple#default $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:101
                                • Kernel#dup $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:102
                                  • Kernel#initialize_dup $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:102
                                    • Hash#initialize_copy $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:102
                                • Hash#reject $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:102
                                  • I18n::Backend::Simple#block in default $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:102
                                  • I18n::Backend::Simple#block in default $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:102
                                • Module#=== $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:104
                                • Array#each $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:105
                                  • I18n::Backend::Simple#block in default $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:105
                                    • I18n::Backend::Simple#resolve $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:117
                                      • Kernel#catch $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:119
                                        • I18n::Backend::Simple#block in resolve $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:119
                                          • Module#=== $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:121
                                          • Hash#merge $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:122
                                            • Kernel#initialize_dup $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:122
                                              • Hash#initialize_copy $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:122
                                          • I18n.translate $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:144
                                            • Array#last $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                                            • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                                            • Array#pop $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                                            • Kernel#dup $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                                              • Kernel#initialize_dup $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                                                • Hash#initialize_copy $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                                            • Array#shift $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:146
                                            • I18n.config $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:17
                                              • #<Class:Thread>#current $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                              • Thread#[] $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                            • ActionView::I18nProxy#backend $GemPath0/gems/i18n-0.8.4/lib/i18n/config.rb:18
                                            • Hash#delete $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:148
                                            • Hash#delete $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:149
                                            • I18n.enforce_available_locales! $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:282
                                              • I18n.config $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:17
                                                • #<Class:Thread>#current $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                                • Thread#[] $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                              • ActionView::I18nProxy#enforce_available_locales $GemPath0/gems/i18n-0.8.4/lib/i18n/config.rb:134
                                              • I18n.locale_available? $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:277
                                                • I18n.config $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:17
                                                  • #<Class:Thread>#current $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                                  • Thread#[] $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                                • ActionView::I18nProxy#available_locales_set $GemPath0/gems/i18n-0.8.4/lib/i18n/config.rb:48
                                                • Set#include? /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/set.rb:232
                                            • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:152
                                            • Kernel#catch $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:154
                                              • I18n.block in translate $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:154
                                                • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:155
                                                • I18n::Backend::Simple#translate $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:24
                                                  • Kernel#nil? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:26
                                                  • I18n::Backend::Simple#lookup $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:70
                                                    • I18n::Backend::Simple#initialized? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:23
                                                    • I18n.normalize_keys $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:265
                                                      • I18n.default_separator $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:30
                                                        • I18n.config $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:17
                                                          • #<Class:Thread>#current $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                                          • Thread#[] $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                                        • ActionView::I18nProxy#default_separator $GemPath0/gems/i18n-0.8.4/lib/i18n/config.rb:68
                                                      • I18n.normalize_key $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:324
                                                        • I18n.normalized_key_cache $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:337
                                                      • Array#concat $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:269
                                                      • I18n.normalize_key $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:324
                                                        • I18n.normalized_key_cache $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:337
                                                      • Array#concat $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:270
                                                      • I18n.normalize_key $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:324
                                                        • I18n.normalized_key_cache $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:337
                                                      • Array#concat $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:271
                                                    • I18n::Backend::Simple#translations $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:61
                                                    • Enumerable#inject $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:74
                                                      • Array#each $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:74
                                                        • I18n::Backend::Simple#block in lookup $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:74
                                                          • Symbol#to_sym $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:75
                                                          • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:76
                                                          • Hash#has_key? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:76
                                                          • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:78
                                                        • I18n::Backend::Simple#block in lookup $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:74
                                                          • Symbol#to_sym $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:75
                                                          • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:76
                                                          • Hash#has_key? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:76
                                                  • NilClass#nil? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:28
                                                  • Hash#key? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:28
                                                  • I18n::Backend::Simple#resolve $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:117
                                                    • Kernel#catch $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:119
                                                      • I18n::Backend::Simple#block in resolve $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:119
                                                        • Module#=== $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:121
                                                        • Module#=== $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:123
                                                    • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:130
                                                  • NilClass#nil? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:34
                                                  • Hash#key? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:35
                                                  • Hash#key? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:35
                                                  • Class#new $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:36
                                                    • I18n::MissingTranslation#initialize $GemPath0/gems/i18n-0.8.4/lib/i18n/exceptions.rb:45
                                                      • Kernel#dup $GemPath0/gems/i18n-0.8.4/lib/i18n/exceptions.rb:46
                                                        • Kernel#initialize_dup $GemPath0/gems/i18n-0.8.4/lib/i18n/exceptions.rb:46
                                                          • Hash#initialize_copy $GemPath0/gems/i18n-0.8.4/lib/i18n/exceptions.rb:46
                                                      • Hash#each $GemPath0/gems/i18n-0.8.4/lib/i18n/exceptions.rb:47
                                                        • I18n::MissingTranslation#block in initialize $GemPath0/gems/i18n-0.8.4/lib/i18n/exceptions.rb:47
                                                          • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/exceptions.rb:47
                                                  • Kernel#throw $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:36
                                            • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:161
                                            • I18n.handle_exception $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:308
                                              • Kernel#throw $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:313
                                      • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:130
                                  • I18n::Backend::Simple#block in default $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:105
                                    • I18n::Backend::Simple#resolve $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:117
                                      • Kernel#catch $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:119
                                        • I18n::Backend::Simple#block in resolve $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:119
                                          • Module#=== $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:121
                                          • Hash#merge $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:122
                                            • Kernel#initialize_dup $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:122
                                              • Hash#initialize_copy $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:122
                                          • I18n.translate $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:144
                                            • Array#last $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                                            • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                                            • Array#pop $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                                            • Kernel#dup $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                                              • Kernel#initialize_dup $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                                                • Hash#initialize_copy $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                                            • Array#shift $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:146
                                            • I18n.config $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:17
                                              • #<Class:Thread>#current $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                              • Thread#[] $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                            • ActionView::I18nProxy#backend $GemPath0/gems/i18n-0.8.4/lib/i18n/config.rb:18
                                            • Hash#delete $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:148
                                            • Hash#delete $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:149
                                            • I18n.enforce_available_locales! $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:282
                                              • I18n.config $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:17
                                                • #<Class:Thread>#current $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                                • Thread#[] $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                              • ActionView::I18nProxy#enforce_available_locales $GemPath0/gems/i18n-0.8.4/lib/i18n/config.rb:134
                                              • I18n.locale_available? $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:277
                                                • I18n.config $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:17
                                                  • #<Class:Thread>#current $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                                  • Thread#[] $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                                • ActionView::I18nProxy#available_locales_set $GemPath0/gems/i18n-0.8.4/lib/i18n/config.rb:48
                                                • Set#include? /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/set.rb:232
                                            • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:152
                                            • Kernel#catch $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:154
                                              • I18n.block in translate $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:154
                                                • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:155
                                                • I18n::Backend::Simple#translate $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:24
                                                  • Kernel#nil? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:26
                                                  • I18n::Backend::Simple#lookup $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:70
                                                    • I18n::Backend::Simple#initialized? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:23
                                                    • I18n.normalize_keys $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:265
                                                      • I18n.default_separator $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:30
                                                        • I18n.config $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:17
                                                          • #<Class:Thread>#current $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                                          • Thread#[] $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                                        • ActionView::I18nProxy#default_separator $GemPath0/gems/i18n-0.8.4/lib/i18n/config.rb:68
                                                      • I18n.normalize_key $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:324
                                                        • I18n.normalized_key_cache $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:337
                                                      • Array#concat $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:269
                                                      • I18n.normalize_key $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:324
                                                        • I18n.normalized_key_cache $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:337
                                                      • Array#concat $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:270
                                                      • I18n.normalize_key $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:324
                                                        • I18n.normalized_key_cache $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:337
                                                      • Array#concat $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:271
                                                    • I18n::Backend::Simple#translations $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:61
                                                    • Enumerable#inject $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:74
                                                      • Array#each $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:74
                                                        • I18n::Backend::Simple#block in lookup $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:74
                                                          • Symbol#to_sym $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:75
                                                          • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:76
                                                          • Hash#has_key? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:76
                                                          • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:78
                                                        • I18n::Backend::Simple#block in lookup $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:74
                                                          • Symbol#to_sym $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:75
                                                          • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:76
                                                          • Hash#has_key? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:76
                                                  • NilClass#nil? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:28
                                                  • Hash#key? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:28
                                                  • I18n::Backend::Simple#resolve $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:117
                                                    • Kernel#catch $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:119
                                                      • I18n::Backend::Simple#block in resolve $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:119
                                                        • Module#=== $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:121
                                                        • Module#=== $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:123
                                                    • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:130
                                                  • NilClass#nil? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:34
                                                  • Hash#key? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:35
                                                  • Hash#key? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:35
                                                  • Class#new $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:36
                                                    • I18n::MissingTranslation#initialize $GemPath0/gems/i18n-0.8.4/lib/i18n/exceptions.rb:45
                                                      • Kernel#dup $GemPath0/gems/i18n-0.8.4/lib/i18n/exceptions.rb:46
                                                        • Kernel#initialize_dup $GemPath0/gems/i18n-0.8.4/lib/i18n/exceptions.rb:46
                                                          • Hash#initialize_copy $GemPath0/gems/i18n-0.8.4/lib/i18n/exceptions.rb:46
                                                      • Hash#each $GemPath0/gems/i18n-0.8.4/lib/i18n/exceptions.rb:47
                                                        • I18n::MissingTranslation#block in initialize $GemPath0/gems/i18n-0.8.4/lib/i18n/exceptions.rb:47
                                                          • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/exceptions.rb:47
                                                  • Kernel#throw $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:36
                                            • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:161
                                            • I18n.handle_exception $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:308
                                              • Kernel#throw $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:313
                                      • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:130
                                  • I18n::Backend::Simple#block in default $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:105
                                    • I18n::Backend::Simple#resolve $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:117
                                      • Kernel#catch $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:119
                                        • I18n::Backend::Simple#block in resolve $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:119
                                          • Module#=== $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:121
                                          • Hash#merge $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:122
                                            • Kernel#initialize_dup $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:122
                                              • Hash#initialize_copy $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:122
                                          • I18n.translate $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:144
                                            • Array#last $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                                            • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                                            • Array#pop $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                                            • Kernel#dup $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                                              • Kernel#initialize_dup $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                                                • Hash#initialize_copy $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                                            • Array#shift $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:146
                                            • I18n.config $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:17
                                              • #<Class:Thread>#current $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                              • Thread#[] $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                            • ActionView::I18nProxy#backend $GemPath0/gems/i18n-0.8.4/lib/i18n/config.rb:18
                                            • Hash#delete $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:148
                                            • Hash#delete $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:149
                                            • I18n.enforce_available_locales! $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:282
                                              • I18n.config $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:17
                                                • #<Class:Thread>#current $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                                • Thread#[] $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                              • ActionView::I18nProxy#enforce_available_locales $GemPath0/gems/i18n-0.8.4/lib/i18n/config.rb:134
                                              • I18n.locale_available? $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:277
                                                • I18n.config $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:17
                                                  • #<Class:Thread>#current $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                                  • Thread#[] $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                                • ActionView::I18nProxy#available_locales_set $GemPath0/gems/i18n-0.8.4/lib/i18n/config.rb:48
                                                • Set#include? /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/set.rb:232
                                            • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:152
                                            • Kernel#catch $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:154
                                              • I18n.block in translate $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:154
                                                • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:155
                                                • I18n::Backend::Simple#translate $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:24
                                                  • Kernel#nil? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:26
                                                  • I18n::Backend::Simple#lookup $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:70
                                                    • I18n::Backend::Simple#initialized? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:23
                                                    • I18n.normalize_keys $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:265
                                                      • I18n.default_separator $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:30
                                                        • I18n.config $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:17
                                                          • #<Class:Thread>#current $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                                          • Thread#[] $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                                        • ActionView::I18nProxy#default_separator $GemPath0/gems/i18n-0.8.4/lib/i18n/config.rb:68
                                                      • I18n.normalize_key $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:324
                                                        • I18n.normalized_key_cache $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:337
                                                      • Array#concat $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:269
                                                      • I18n.normalize_key $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:324
                                                        • I18n.normalized_key_cache $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:337
                                                      • Array#concat $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:270
                                                      • I18n.normalize_key $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:324
                                                        • I18n.normalized_key_cache $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:337
                                                      • Array#concat $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:271
                                                    • I18n::Backend::Simple#translations $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:61
                                                    • Enumerable#inject $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:74
                                                      • Array#each $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:74
                                                        • I18n::Backend::Simple#block in lookup $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:74
                                                          • Symbol#to_sym $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:75
                                                          • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:76
                                                          • Hash#has_key? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:76
                                                          • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:78
                                                        • I18n::Backend::Simple#block in lookup $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:74
                                                          • Symbol#to_sym $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:75
                                                          • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:76
                                                          • Hash#has_key? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:76
                                                  • NilClass#nil? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:28
                                                  • Hash#key? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:28
                                                  • I18n::Backend::Simple#resolve $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:117
                                                    • Kernel#catch $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:119
                                                      • I18n::Backend::Simple#block in resolve $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:119
                                                        • Module#=== $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:121
                                                        • Module#=== $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:123
                                                    • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:130
                                                  • NilClass#nil? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:34
                                                  • Hash#key? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:35
                                                  • Hash#key? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:35
                                                  • Class#new $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:36
                                                    • I18n::MissingTranslation#initialize $GemPath0/gems/i18n-0.8.4/lib/i18n/exceptions.rb:45
                                                      • Kernel#dup $GemPath0/gems/i18n-0.8.4/lib/i18n/exceptions.rb:46
                                                        • Kernel#initialize_dup $GemPath0/gems/i18n-0.8.4/lib/i18n/exceptions.rb:46
                                                          • Hash#initialize_copy $GemPath0/gems/i18n-0.8.4/lib/i18n/exceptions.rb:46
                                                      • Hash#each $GemPath0/gems/i18n-0.8.4/lib/i18n/exceptions.rb:47
                                                        • I18n::MissingTranslation#block in initialize $GemPath0/gems/i18n-0.8.4/lib/i18n/exceptions.rb:47
                                                          • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/exceptions.rb:47
                                                  • Kernel#throw $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:36
                                            • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:161
                                            • I18n.handle_exception $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:308
                                              • Kernel#throw $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:313
                                      • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:130
                                  • I18n::Backend::Simple#block in default $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:105
                                    • I18n::Backend::Simple#resolve $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:117
                                      • Kernel#catch $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:119
                                        • I18n::Backend::Simple#block in resolve $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:119
                                          • Module#=== $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:121
                                          • Module#=== $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:123
                                      • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:130
                              • Kernel#nil? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:34
                              • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:40
                              • Kernel#dup $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:40
                                • Kernel#initialize_dup $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:40
                                  • String#initialize_copy $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:40
                              • Hash#except $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:10
                                • Kernel#dup $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:11
                                  • Kernel#initialize_dup $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:11
                                    • Hash#initialize_copy $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:11
                                • Hash#except! $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:18
                                  • Array#each $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                    • Hash#block in except! $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                      • Hash#delete $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                    • Hash#block in except! $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                      • Hash#delete $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                    • Hash#block in except! $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                      • Hash#delete $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                    • Hash#block in except! $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                      • Hash#delete $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                    • Hash#block in except! $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                      • Hash#delete $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                    • Hash#block in except! $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                      • Hash#delete $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                    • Hash#block in except! $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                      • Hash#delete $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                    • Hash#block in except! $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                      • Hash#delete $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                    • Hash#block in except! $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                      • Hash#delete $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                    • Hash#block in except! $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                      • Hash#delete $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                    • Hash#block in except! $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                      • Hash#delete $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                              • I18n::Backend::Simple#interpolate $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:154
                                • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:155
                        • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:161
                      • String#presence $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/object/blank.rb:41
                        • String#present? $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/object/blank.rb:21
                          • String#blank? $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/object/blank.rb:114
          • SimpleForm::Wrappers::Root#block in render $GemPath0/gems/simple_form-3.5.0/lib/simple_form/wrappers/many.rb:26
            • SimpleForm::Wrappers::Single#render $GemPath0/gems/simple_form-3.5.0/lib/simple_form/wrappers/single.rb:11
              • SimpleForm::Wrappers::Leaf#render $GemPath0/gems/simple_form-3.5.0/lib/simple_form/wrappers/leaf.rb:11
                • Kernel#method $GemPath0/gems/simple_form-3.5.0/lib/simple_form/wrappers/leaf.rb:12
                • Method#arity $GemPath0/gems/simple_form-3.5.0/lib/simple_form/wrappers/leaf.rb:14
                • Method#call $GemPath0/gems/simple_form-3.5.0/lib/simple_form/wrappers/leaf.rb:19
                  • SimpleForm::Inputs::StringInput#error $GemPath0/gems/simple_form-3.5.0/lib/simple_form/components/errors.rb:4
                    • SimpleForm::Inputs::StringInput#has_errors? $GemPath0/gems/simple_form-3.5.0/lib/simple_form/components/errors.rb:12
                      • SimpleForm::Inputs::StringInput#object $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:33
                      • SimpleForm::Inputs::StringInput#object $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:33
                      • Student#respond_to? $GemPath0/gems/activerecord-5.0.4/lib/active_record/attribute_methods.rb:219
                        • Student#respond_to? $GemPath0/gems/activemodel-5.0.4/lib/active_model/attribute_methods.rb:449
                          • Kernel#respond_to? $GemPath0/gems/activemodel-5.0.4/lib/active_model/attribute_methods.rb:450
                        • Symbol#to_s $GemPath0/gems/activerecord-5.0.4/lib/active_record/attribute_methods.rb:228
                        • Kernel#class $GemPath0/gems/activerecord-5.0.4/lib/active_record/attribute_methods.rb:235
                        • Student.column_names $GemPath0/gems/activerecord-5.0.4/lib/active_record/model_schema.rb:388
                        • Array#include? $GemPath0/gems/activerecord-5.0.4/lib/active_record/attribute_methods.rb:235
                      • SimpleForm::Inputs::StringInput#errors $GemPath0/gems/simple_form-3.5.0/lib/simple_form/components/errors.rb:32
                      • Array#present? $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/object/blank.rb:21
                        • Array#empty? $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/object/blank.rb:22
        • SimpleForm::Wrappers::Root#wrap $GemPath0/gems/simple_form-3.5.0/lib/simple_form/wrappers/many.rb:51
          • Symbol#to_s $GemPath0/gems/simple_form-3.5.0/lib/simple_form/wrappers/many.rb:55
          • String#intern $GemPath0/gems/simple_form-3.5.0/lib/simple_form/wrappers/many.rb:55
          • SimpleForm::Wrappers::Root#html_classes $GemPath0/gems/simple_form-3.5.0/lib/simple_form/wrappers/root.rb:25
            • SimpleForm.additional_classes_for $GemPath0/gems/simple_form-3.5.0/lib/simple_form.rb:245
              • SimpleForm.generate_additional_classes_for $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/module/attribute_accessors.rb:60
              • Array#include? $GemPath0/gems/simple_form-3.5.0/lib/simple_form.rb:246
              • SimpleForm::Wrappers::Root#block in html_classes $GemPath0/gems/simple_form-3.5.0/lib/simple_form/wrappers/root.rb:27
                • SimpleForm::Inputs::StringInput#additional_classes $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:93
                • SimpleForm::Inputs::StringInput#input_class $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:97
                  • SimpleForm::Inputs::StringInput#lookup_model_names $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:33
                    • SimpleForm::FormBuilder#lookup_model_names $GemPath0/gems/simple_form-3.5.0/lib/simple_form/form_builder.rb:437
                  • Array#join $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:98
                  • SimpleForm::Inputs::StringInput#reflection_or_attribute_name $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:127
                  • Symbol#to_s $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:98
            • SimpleForm::Inputs::StringInput#has_errors? $GemPath0/gems/simple_form-3.5.0/lib/simple_form/components/errors.rb:12
              • SimpleForm::Inputs::StringInput#object $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:33
              • SimpleForm::Inputs::StringInput#object $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:33
              • Student#respond_to? $GemPath0/gems/activerecord-5.0.4/lib/active_record/attribute_methods.rb:219
                • Student#respond_to? $GemPath0/gems/activemodel-5.0.4/lib/active_model/attribute_methods.rb:449
                  • Kernel#respond_to? $GemPath0/gems/activemodel-5.0.4/lib/active_model/attribute_methods.rb:450
                • Symbol#to_s $GemPath0/gems/activerecord-5.0.4/lib/active_record/attribute_methods.rb:228
                • Kernel#class $GemPath0/gems/activerecord-5.0.4/lib/active_record/attribute_methods.rb:235
                • Student.column_names $GemPath0/gems/activerecord-5.0.4/lib/active_record/model_schema.rb:388
                • Array#include? $GemPath0/gems/activerecord-5.0.4/lib/active_record/attribute_methods.rb:235
              • SimpleForm::Inputs::StringInput#errors $GemPath0/gems/simple_form-3.5.0/lib/simple_form/components/errors.rb:32
              • Array#present? $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/object/blank.rb:21
                • Array#empty? $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/object/blank.rb:22
            • SimpleForm::Inputs::StringInput#has_hint? $GemPath0/gems/simple_form-3.5.0/lib/simple_form/components/hints.rb:18
              • SimpleForm::Inputs::StringInput#hint $GemPath0/gems/simple_form-3.5.0/lib/simple_form/components/hints.rb:5
                • Kernel#is_a? $GemPath0/gems/simple_form-3.5.0/lib/simple_form/components/hints.rb:9
                • SimpleForm::Inputs::StringInput#translate_from_namespace $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:173
                  • SimpleForm::Inputs::StringInput#lookup_model_names $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:33
                    • SimpleForm::FormBuilder#lookup_model_names $GemPath0/gems/simple_form-3.5.0/lib/simple_form/form_builder.rb:437
                  • Kernel#dup $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:174
                    • Kernel#initialize_dup $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:174
                      • Array#initialize_copy $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:174
                  • Array#join $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:178
                  • Array#shift $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:179
                  • SimpleForm::Inputs::StringInput#lookup_action $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:33
                    • SimpleForm::FormBuilder#lookup_action $GemPath0/gems/simple_form-3.5.0/lib/simple_form/form_builder.rb:448
                  • SimpleForm::Inputs::StringInput#reflection_or_attribute_name $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:127
                  • Symbol#to_s $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:181
                  • String#intern $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:181
                  • SimpleForm::Inputs::StringInput#reflection_or_attribute_name $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:127
                  • Symbol#to_s $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:182
                  • String#intern $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:182
                  • SimpleForm::Inputs::StringInput#lookup_action $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:33
                    • SimpleForm::FormBuilder#lookup_action $GemPath0/gems/simple_form-3.5.0/lib/simple_form/form_builder.rb:448
                  • SimpleForm::Inputs::StringInput#reflection_or_attribute_name $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:127
                  • Symbol#to_s $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:184
                  • String#intern $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:184
                  • SimpleForm::Inputs::StringInput#reflection_or_attribute_name $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:127
                  • Symbol#to_s $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:185
                  • String#intern $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:185
                  • Array#shift $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:188
                  • SimpleForm::Inputs::StringInput#i18n_scope $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:208
                    • SimpleForm.i18n_scope $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/module/attribute_accessors.rb:60
                  • Symbol#to_s $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:188
                  • String#intern $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:188
                  • I18n.translate $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:144
                    • Array#last $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                    • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                    • Array#pop $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                    • Kernel#dup $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                      • Kernel#initialize_dup $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                        • Hash#initialize_copy $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                    • Array#shift $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:146
                    • I18n.config $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:17
                      • #<Class:Thread>#current $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                      • Thread#[] $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                    • ActionView::I18nProxy#backend $GemPath0/gems/i18n-0.8.4/lib/i18n/config.rb:18
                    • Hash#delete $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:148
                    • I18n.config $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:17
                      • #<Class:Thread>#current $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                      • Thread#[] $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                    • ActionView::I18nProxy#locale $GemPath0/gems/actionview-5.0.4/lib/action_view/rendering.rb:14
                      • I18n::Config#locale $GemPath0/gems/i18n-0.8.4/lib/i18n/config.rb:7
                        • I18n::Config#default_locale $GemPath0/gems/i18n-0.8.4/lib/i18n/config.rb:28
                    • Hash#delete $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:149
                    • Hash#delete $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:149
                    • I18n.enforce_available_locales! $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:282
                      • I18n.config $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:17
                        • #<Class:Thread>#current $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                        • Thread#[] $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                      • ActionView::I18nProxy#enforce_available_locales $GemPath0/gems/i18n-0.8.4/lib/i18n/config.rb:134
                      • I18n.locale_available? $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:277
                        • I18n.config $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:17
                          • #<Class:Thread>#current $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                          • Thread#[] $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                        • ActionView::I18nProxy#available_locales_set $GemPath0/gems/i18n-0.8.4/lib/i18n/config.rb:48
                        • Set#include? /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/set.rb:232
                    • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:152
                    • Kernel#catch $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:154
                      • I18n.block in translate $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:154
                        • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:155
                        • I18n::Backend::Simple#translate $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:24
                          • Kernel#nil? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:26
                          • I18n::Backend::Simple#lookup $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:70
                            • I18n::Backend::Simple#initialized? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:23
                            • I18n.normalize_keys $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:265
                              • I18n.default_separator $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:30
                                • I18n.config $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:17
                                  • #<Class:Thread>#current $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                  • Thread#[] $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                • ActionView::I18nProxy#default_separator $GemPath0/gems/i18n-0.8.4/lib/i18n/config.rb:68
                              • I18n.normalize_key $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:324
                                • I18n.normalized_key_cache $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:337
                              • Array#concat $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:269
                              • I18n.normalize_key $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:324
                                • I18n.normalized_key_cache $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:337
                              • Array#concat $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:270
                              • I18n.normalize_key $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:324
                                • I18n.normalized_key_cache $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:337
                              • Array#concat $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:271
                            • I18n::Backend::Simple#translations $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:61
                            • Enumerable#inject $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:74
                              • Array#each $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:74
                                • I18n::Backend::Simple#block in lookup $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:74
                                  • Symbol#to_sym $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:75
                                  • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:76
                                  • Hash#has_key? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:76
                                  • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:78
                                • I18n::Backend::Simple#block in lookup $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:74
                                  • Symbol#to_sym $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:75
                                  • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:76
                                  • Hash#has_key? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:76
                          • NilClass#nil? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:28
                          • Hash#key? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:28
                          • I18n::Backend::Simple#default $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:101
                            • Kernel#dup $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:102
                              • Kernel#initialize_dup $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:102
                                • Hash#initialize_copy $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:102
                            • Hash#reject $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:102
                              • I18n::Backend::Simple#block in default $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:102
                              • I18n::Backend::Simple#block in default $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:102
                            • Module#=== $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:104
                            • Array#each $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:105
                              • I18n::Backend::Simple#block in default $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:105
                                • I18n::Backend::Simple#resolve $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:117
                                  • Kernel#catch $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:119
                                    • I18n::Backend::Simple#block in resolve $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:119
                                      • Module#=== $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:121
                                      • Hash#merge $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:122
                                        • Kernel#initialize_dup $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:122
                                          • Hash#initialize_copy $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:122
                                      • I18n.translate $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:144
                                        • Array#last $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                                        • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                                        • Array#pop $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                                        • Kernel#dup $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                                          • Kernel#initialize_dup $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                                            • Hash#initialize_copy $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                                        • Array#shift $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:146
                                        • I18n.config $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:17
                                          • #<Class:Thread>#current $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                          • Thread#[] $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                        • ActionView::I18nProxy#backend $GemPath0/gems/i18n-0.8.4/lib/i18n/config.rb:18
                                        • Hash#delete $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:148
                                        • Hash#delete $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:149
                                        • I18n.enforce_available_locales! $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:282
                                          • I18n.config $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:17
                                            • #<Class:Thread>#current $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                            • Thread#[] $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                          • ActionView::I18nProxy#enforce_available_locales $GemPath0/gems/i18n-0.8.4/lib/i18n/config.rb:134
                                          • I18n.locale_available? $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:277
                                            • I18n.config $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:17
                                              • #<Class:Thread>#current $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                              • Thread#[] $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                            • ActionView::I18nProxy#available_locales_set $GemPath0/gems/i18n-0.8.4/lib/i18n/config.rb:48
                                            • Set#include? /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/set.rb:232
                                        • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:152
                                        • Kernel#catch $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:154
                                          • I18n.block in translate $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:154
                                            • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:155
                                            • I18n::Backend::Simple#translate $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:24
                                              • Kernel#nil? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:26
                                              • I18n::Backend::Simple#lookup $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:70
                                                • I18n::Backend::Simple#initialized? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:23
                                                • I18n.normalize_keys $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:265
                                                  • I18n.default_separator $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:30
                                                    • I18n.config $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:17
                                                      • #<Class:Thread>#current $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                                      • Thread#[] $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                                    • ActionView::I18nProxy#default_separator $GemPath0/gems/i18n-0.8.4/lib/i18n/config.rb:68
                                                  • I18n.normalize_key $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:324
                                                    • I18n.normalized_key_cache $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:337
                                                  • Array#concat $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:269
                                                  • I18n.normalize_key $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:324
                                                    • I18n.normalized_key_cache $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:337
                                                  • Array#concat $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:270
                                                  • I18n.normalize_key $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:324
                                                    • I18n.normalized_key_cache $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:337
                                                  • Array#concat $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:271
                                                • I18n::Backend::Simple#translations $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:61
                                                • Enumerable#inject $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:74
                                                  • Array#each $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:74
                                                    • I18n::Backend::Simple#block in lookup $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:74
                                                      • Symbol#to_sym $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:75
                                                      • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:76
                                                      • Hash#has_key? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:76
                                                      • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:78
                                                    • I18n::Backend::Simple#block in lookup $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:74
                                                      • Symbol#to_sym $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:75
                                                      • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:76
                                                      • Hash#has_key? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:76
                                              • NilClass#nil? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:28
                                              • Hash#key? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:28
                                              • I18n::Backend::Simple#resolve $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:117
                                                • Kernel#catch $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:119
                                                  • I18n::Backend::Simple#block in resolve $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:119
                                                    • Module#=== $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:121
                                                    • Module#=== $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:123
                                                • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:130
                                              • NilClass#nil? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:34
                                              • Hash#key? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:35
                                              • Hash#key? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:35
                                              • Class#new $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:36
                                                • I18n::MissingTranslation#initialize $GemPath0/gems/i18n-0.8.4/lib/i18n/exceptions.rb:45
                                                  • Kernel#dup $GemPath0/gems/i18n-0.8.4/lib/i18n/exceptions.rb:46
                                                    • Kernel#initialize_dup $GemPath0/gems/i18n-0.8.4/lib/i18n/exceptions.rb:46
                                                      • Hash#initialize_copy $GemPath0/gems/i18n-0.8.4/lib/i18n/exceptions.rb:46
                                                  • Hash#each $GemPath0/gems/i18n-0.8.4/lib/i18n/exceptions.rb:47
                                                    • I18n::MissingTranslation#block in initialize $GemPath0/gems/i18n-0.8.4/lib/i18n/exceptions.rb:47
                                                      • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/exceptions.rb:47
                                              • Kernel#throw $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:36
                                        • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:161
                                        • I18n.handle_exception $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:308
                                          • Kernel#throw $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:313
                                  • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:130
                              • I18n::Backend::Simple#block in default $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:105
                                • I18n::Backend::Simple#resolve $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:117
                                  • Kernel#catch $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:119
                                    • I18n::Backend::Simple#block in resolve $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:119
                                      • Module#=== $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:121
                                      • Hash#merge $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:122
                                        • Kernel#initialize_dup $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:122
                                          • Hash#initialize_copy $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:122
                                      • I18n.translate $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:144
                                        • Array#last $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                                        • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                                        • Array#pop $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                                        • Kernel#dup $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                                          • Kernel#initialize_dup $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                                            • Hash#initialize_copy $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                                        • Array#shift $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:146
                                        • I18n.config $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:17
                                          • #<Class:Thread>#current $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                          • Thread#[] $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                        • ActionView::I18nProxy#backend $GemPath0/gems/i18n-0.8.4/lib/i18n/config.rb:18
                                        • Hash#delete $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:148
                                        • Hash#delete $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:149
                                        • I18n.enforce_available_locales! $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:282
                                          • I18n.config $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:17
                                            • #<Class:Thread>#current $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                            • Thread#[] $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                          • ActionView::I18nProxy#enforce_available_locales $GemPath0/gems/i18n-0.8.4/lib/i18n/config.rb:134
                                          • I18n.locale_available? $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:277
                                            • I18n.config $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:17
                                              • #<Class:Thread>#current $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                              • Thread#[] $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                            • ActionView::I18nProxy#available_locales_set $GemPath0/gems/i18n-0.8.4/lib/i18n/config.rb:48
                                            • Set#include? /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/set.rb:232
                                        • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:152
                                        • Kernel#catch $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:154
                                          • I18n.block in translate $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:154
                                            • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:155
                                            • I18n::Backend::Simple#translate $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:24
                                              • Kernel#nil? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:26
                                              • I18n::Backend::Simple#lookup $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:70
                                                • I18n::Backend::Simple#initialized? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:23
                                                • I18n.normalize_keys $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:265
                                                  • I18n.default_separator $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:30
                                                    • I18n.config $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:17
                                                      • #<Class:Thread>#current $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                                      • Thread#[] $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                                    • ActionView::I18nProxy#default_separator $GemPath0/gems/i18n-0.8.4/lib/i18n/config.rb:68
                                                  • I18n.normalize_key $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:324
                                                    • I18n.normalized_key_cache $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:337
                                                  • Array#concat $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:269
                                                  • I18n.normalize_key $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:324
                                                    • I18n.normalized_key_cache $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:337
                                                  • Array#concat $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:270
                                                  • I18n.normalize_key $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:324
                                                    • I18n.normalized_key_cache $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:337
                                                  • Array#concat $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:271
                                                • I18n::Backend::Simple#translations $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:61
                                                • Enumerable#inject $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:74
                                                  • Array#each $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:74
                                                    • I18n::Backend::Simple#block in lookup $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:74
                                                      • Symbol#to_sym $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:75
                                                      • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:76
                                                      • Hash#has_key? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:76
                                                      • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:78
                                                    • I18n::Backend::Simple#block in lookup $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:74
                                                      • Symbol#to_sym $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:75
                                                      • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:76
                                                      • Hash#has_key? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:76
                                              • NilClass#nil? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:28
                                              • Hash#key? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:28
                                              • I18n::Backend::Simple#resolve $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:117
                                                • Kernel#catch $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:119
                                                  • I18n::Backend::Simple#block in resolve $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:119
                                                    • Module#=== $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:121
                                                    • Module#=== $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:123
                                                • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:130
                                              • NilClass#nil? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:34
                                              • Hash#key? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:35
                                              • Hash#key? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:35
                                              • Class#new $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:36
                                                • I18n::MissingTranslation#initialize $GemPath0/gems/i18n-0.8.4/lib/i18n/exceptions.rb:45
                                                  • Kernel#dup $GemPath0/gems/i18n-0.8.4/lib/i18n/exceptions.rb:46
                                                    • Kernel#initialize_dup $GemPath0/gems/i18n-0.8.4/lib/i18n/exceptions.rb:46
                                                      • Hash#initialize_copy $GemPath0/gems/i18n-0.8.4/lib/i18n/exceptions.rb:46
                                                  • Hash#each $GemPath0/gems/i18n-0.8.4/lib/i18n/exceptions.rb:47
                                                    • I18n::MissingTranslation#block in initialize $GemPath0/gems/i18n-0.8.4/lib/i18n/exceptions.rb:47
                                                      • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/exceptions.rb:47
                                              • Kernel#throw $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:36
                                        • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:161
                                        • I18n.handle_exception $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:308
                                          • Kernel#throw $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:313
                                  • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:130
                              • I18n::Backend::Simple#block in default $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:105
                                • I18n::Backend::Simple#resolve $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:117
                                  • Kernel#catch $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:119
                                    • I18n::Backend::Simple#block in resolve $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:119
                                      • Module#=== $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:121
                                      • Hash#merge $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:122
                                        • Kernel#initialize_dup $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:122
                                          • Hash#initialize_copy $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:122
                                      • I18n.translate $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:144
                                        • Array#last $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                                        • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                                        • Array#pop $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                                        • Kernel#dup $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                                          • Kernel#initialize_dup $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                                            • Hash#initialize_copy $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:145
                                        • Array#shift $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:146
                                        • I18n.config $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:17
                                          • #<Class:Thread>#current $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                          • Thread#[] $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                        • ActionView::I18nProxy#backend $GemPath0/gems/i18n-0.8.4/lib/i18n/config.rb:18
                                        • Hash#delete $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:148
                                        • Hash#delete $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:149
                                        • I18n.enforce_available_locales! $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:282
                                          • I18n.config $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:17
                                            • #<Class:Thread>#current $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                            • Thread#[] $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                          • ActionView::I18nProxy#enforce_available_locales $GemPath0/gems/i18n-0.8.4/lib/i18n/config.rb:134
                                          • I18n.locale_available? $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:277
                                            • I18n.config $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:17
                                              • #<Class:Thread>#current $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                              • Thread#[] $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                            • ActionView::I18nProxy#available_locales_set $GemPath0/gems/i18n-0.8.4/lib/i18n/config.rb:48
                                            • Set#include? /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/set.rb:232
                                        • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:152
                                        • Kernel#catch $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:154
                                          • I18n.block in translate $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:154
                                            • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:155
                                            • I18n::Backend::Simple#translate $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:24
                                              • Kernel#nil? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:26
                                              • I18n::Backend::Simple#lookup $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:70
                                                • I18n::Backend::Simple#initialized? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:23
                                                • I18n.normalize_keys $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:265
                                                  • I18n.default_separator $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:30
                                                    • I18n.config $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:17
                                                      • #<Class:Thread>#current $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                                      • Thread#[] $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:18
                                                    • ActionView::I18nProxy#default_separator $GemPath0/gems/i18n-0.8.4/lib/i18n/config.rb:68
                                                  • I18n.normalize_key $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:324
                                                    • I18n.normalized_key_cache $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:337
                                                  • Array#concat $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:269
                                                  • I18n.normalize_key $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:324
                                                    • I18n.normalized_key_cache $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:337
                                                  • Array#concat $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:270
                                                  • I18n.normalize_key $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:324
                                                    • I18n.normalized_key_cache $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:337
                                                  • Array#concat $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:271
                                                • I18n::Backend::Simple#translations $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:61
                                                • Enumerable#inject $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:74
                                                  • Array#each $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:74
                                                    • I18n::Backend::Simple#block in lookup $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:74
                                                      • Symbol#to_sym $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:75
                                                      • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:76
                                                      • Hash#has_key? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:76
                                                      • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:78
                                                    • I18n::Backend::Simple#block in lookup $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:74
                                                      • Symbol#to_sym $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:75
                                                      • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:76
                                                      • Hash#has_key? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/simple.rb:76
                                              • NilClass#nil? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:28
                                              • Hash#key? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:28
                                              • I18n::Backend::Simple#resolve $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:117
                                                • Kernel#catch $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:119
                                                  • I18n::Backend::Simple#block in resolve $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:119
                                                    • Module#=== $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:121
                                                    • Module#=== $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:123
                                                • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:130
                                              • NilClass#nil? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:34
                                              • Hash#key? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:35
                                              • Hash#key? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:35
                                              • Class#new $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:36
                                                • I18n::MissingTranslation#initialize $GemPath0/gems/i18n-0.8.4/lib/i18n/exceptions.rb:45
                                                  • Kernel#dup $GemPath0/gems/i18n-0.8.4/lib/i18n/exceptions.rb:46
                                                    • Kernel#initialize_dup $GemPath0/gems/i18n-0.8.4/lib/i18n/exceptions.rb:46
                                                      • Hash#initialize_copy $GemPath0/gems/i18n-0.8.4/lib/i18n/exceptions.rb:46
                                                  • Hash#each $GemPath0/gems/i18n-0.8.4/lib/i18n/exceptions.rb:47
                                                    • I18n::MissingTranslation#block in initialize $GemPath0/gems/i18n-0.8.4/lib/i18n/exceptions.rb:47
                                                      • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/exceptions.rb:47
                                              • Kernel#throw $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:36
                                        • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:161
                                        • I18n.handle_exception $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:308
                                          • Kernel#throw $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:313
                                  • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:130
                              • I18n::Backend::Simple#block in default $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:105
                                • I18n::Backend::Simple#resolve $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:117
                                  • Kernel#catch $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:119
                                    • I18n::Backend::Simple#block in resolve $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:119
                                      • Module#=== $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:121
                                      • Module#=== $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:123
                                  • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:130
                          • Kernel#nil? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:34
                          • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:40
                          • Kernel#dup $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:40
                            • Kernel#initialize_dup $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:40
                              • String#initialize_copy $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:40
                          • Hash#except $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:10
                            • Kernel#dup $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:11
                              • Kernel#initialize_dup $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:11
                                • Hash#initialize_copy $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:11
                            • Hash#except! $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:18
                              • Array#each $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                • Hash#block in except! $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                  • Hash#delete $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                • Hash#block in except! $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                  • Hash#delete $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                • Hash#block in except! $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                  • Hash#delete $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                • Hash#block in except! $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                  • Hash#delete $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                • Hash#block in except! $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                  • Hash#delete $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                • Hash#block in except! $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                  • Hash#delete $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                • Hash#block in except! $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                  • Hash#delete $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                • Hash#block in except! $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                  • Hash#delete $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                • Hash#block in except! $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                  • Hash#delete $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                • Hash#block in except! $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                  • Hash#delete $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                • Hash#block in except! $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                                  • Hash#delete $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/hash/except.rb:19
                          • I18n::Backend::Simple#interpolate $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:154
                            • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n/backend/base.rb:155
                    • Kernel#is_a? $GemPath0/gems/i18n-0.8.4/lib/i18n.rb:161
                  • String#presence $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/object/blank.rb:41
                    • String#present? $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/object/blank.rb:21
                      • String#blank? $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/object/blank.rb:114
              • NilClass#present? $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/object/blank.rb:21
                • NilClass#blank? $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/object/blank.rb:52
            • Array#compact $GemPath0/gems/simple_form-3.5.0/lib/simple_form/wrappers/root.rb:32
          • SimpleForm::Wrappers::Root#html_options $GemPath0/gems/simple_form-3.5.0/lib/simple_form/wrappers/many.rb:64
            • Symbol#to_s $GemPath0/gems/simple_form-3.5.0/lib/simple_form/wrappers/many.rb:65
            • String#intern $GemPath0/gems/simple_form-3.5.0/lib/simple_form/wrappers/many.rb:65
            • Hash#merge $GemPath0/gems/simple_form-3.5.0/lib/simple_form/wrappers/many.rb:65
              • Kernel#initialize_dup $GemPath0/gems/simple_form-3.5.0/lib/simple_form/wrappers/many.rb:65
                • Hash#initialize_copy $GemPath0/gems/simple_form-3.5.0/lib/simple_form/wrappers/many.rb:65
          • Array#join $GemPath0/gems/simple_form-3.5.0/lib/simple_form/wrappers/many.rb:60
            • Symbol#to_s $GemPath0/gems/simple_form-3.5.0/lib/simple_form/wrappers/many.rb:60
            • Symbol#to_s $GemPath0/gems/simple_form-3.5.0/lib/simple_form/wrappers/many.rb:60
            • Symbol#to_s $GemPath0/gems/simple_form-3.5.0/lib/simple_form/wrappers/many.rb:60
            • NilClass#to_s $GemPath0/gems/simple_form-3.5.0/lib/simple_form/wrappers/many.rb:60
          • String#strip $GemPath0/gems/simple_form-3.5.0/lib/simple_form/wrappers/many.rb:60
          • SimpleForm::Inputs::StringInput#template $GemPath0/gems/simple_form-3.5.0/lib/simple_form/inputs/base.rb:33
          • #<Class:0x007f253c11b260>#content_tag $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tag_helper.rb:104
            • Kernel#block_given? $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tag_helper.rb:105
            • #<Class:0x007f253c11b260>#content_tag_string $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tag_helper.rb:144
              • #<Class:0x007f253c11b260>#tag_options $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tag_helper.rb:150
                • Hash#empty? $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tag_helper.rb:151
                • Hash#each_pair $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tag_helper.rb:154
                  • #<Class:0x007f253c11b260>#block in tag_options $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tag_helper.rb:154
                    • Set#include? /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/set.rb:232
                    • Set#include? /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/set.rb:232
                    • Kernel#nil? $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tag_helper.rb:166
                    • #<Class:0x007f253c11b260>#tag_option $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tag_helper.rb:186
                      • Kernel#is_a? $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tag_helper.rb:187
                      • ERB::Util.unwrapped_html_escape $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:34
                        • String#to_s $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:35
                        • String#html_safe? $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:123
                        • ActiveSupport::Multibyte::Unicode.tidy_bytes $GemPath0/gems/activesupport-5.0.4/lib/active_support/multibyte/unicode.rb:245
                          • String#scrub $GemPath0/gems/activesupport-5.0.4/lib/active_support/multibyte/unicode.rb:248
                        • CGI::Escape#escapeHTML $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:39
                      • Symbol#to_s $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tag_helper.rb:192
                      • String#gsub $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tag_helper.rb:192
              • ERB::Util.unwrapped_html_escape $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:34
                • ActiveSupport::SafeBuffer#to_s $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:216
                • ActiveSupport::SafeBuffer#html_safe? $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:212
              • Symbol#to_s $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tag_helper.rb:147
              • ActionView::Helpers::TagHelper.block in <module:TagHelper> $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tag_helper.rb:25
              • Symbol#to_s $GemPath0/gems/actionview-5.0.4/lib/action_view/helpers/tag_helper.rb:147
              • String#html_safe $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:257
                • Class#new $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:258
                  • ActiveSupport::SafeBuffer#initialize $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:174
                    • String#initialize $GemPath0/gems/activesupport-5.0.4/lib/active_support/core_ext/string/output_safety.rb:176