Rails 5.2 업데이트 시 문제점 정리

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Rails 5.2 업데이트 시 문제점 정리

개인 프로젝트로 관리중인 rails web serverruby version 을 올리는 김에 같이 업데이트를 하려고 합니다.

기존 버전은 rails 5.0.3 이었고, 이번에 rails 5.2.0 으로 올리고 만난 에러들을 기록하려고 글을 씁니다.

Update

먼저 Gemfile.lock 을 지우고 과감하게 update 룰 합니다.

rm Gemfile.lock
bundle update

Gemfile 을 열어보면 rails 5.2를 확인할 수 있습니다.

업데이트가 안되었다면, 강제로 rails 만 업데이트 해줍니다.

bundle update rails -v 5.2.0

내가 만난 문제들


“Rack::Cors” String 문제

업데이트가 잘 되었으면 console 을 실행합니다.

rails c

output

$ rails c
/Users/ktg/.rvm/gems/ruby-2.5.1/gems/actionpack-5.2.0/lib/action_dispatch/middleware/stack.rb:37:in `build': undefined method `new' for "Rack::Cors":String
Did you mean?  next (NoMethodError)
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/actionpack-5.2.0/lib/action_dispatch/middleware/stack.rb:101:in `block in build'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/actionpack-5.2.0/lib/action_dispatch/middleware/stack.rb:101:in `each'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/actionpack-5.2.0/lib/action_dispatch/middleware/stack.rb:101:in `inject'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/actionpack-5.2.0/lib/action_dispatch/middleware/stack.rb:101:in `build'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/railties-5.2.0/lib/rails/engine.rb:510:in `block in app'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/railties-5.2.0/lib/rails/engine.rb:506:in `synchronize'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/railties-5.2.0/lib/rails/engine.rb:506:in `app'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/railties-5.2.0/lib/rails/application/finisher.rb:47:in `block in <module:Finisher>'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/railties-5.2.0/lib/rails/initializable.rb:32:in `instance_exec'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/railties-5.2.0/lib/rails/initializable.rb:32:in `run'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/railties-5.2.0/lib/rails/initializable.rb:61:in `block in run_initializers'
    from /Users/ktg/.rvm/rubies/ruby-2.5.1/lib/ruby/2.5.0/tsort.rb:228:in `block in tsort_each'
    from /Users/ktg/.rvm/rubies/ruby-2.5.1/lib/ruby/2.5.0/tsort.rb:350:in `block (2 levels) in each_strongly_connected_component'
    from /Users/ktg/.rvm/rubies/ruby-2.5.1/lib/ruby/2.5.0/tsort.rb:431:in `each_strongly_connected_component_from'
    from /Users/ktg/.rvm/rubies/ruby-2.5.1/lib/ruby/2.5.0/tsort.rb:349:in `block in each_strongly_connected_component'
    from /Users/ktg/.rvm/rubies/ruby-2.5.1/lib/ruby/2.5.0/tsort.rb:347:in `each'
    from /Users/ktg/.rvm/rubies/ruby-2.5.1/lib/ruby/2.5.0/tsort.rb:347:in `call'
    from /Users/ktg/.rvm/rubies/ruby-2.5.1/lib/ruby/2.5.0/tsort.rb:347:in `each_strongly_connected_component'
    from /Users/ktg/.rvm/rubies/ruby-2.5.1/lib/ruby/2.5.0/tsort.rb:226:in `tsort_each'
    from /Users/ktg/.rvm/rubies/ruby-2.5.1/lib/ruby/2.5.0/tsort.rb:205:in `tsort_each'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/railties-5.2.0/lib/rails/initializable.rb:60:in `run_initializers'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/railties-5.2.0/lib/rails/application.rb:361:in `initialize!'
    from /Users/ktg/privates/my_projects/config/environment.rb:5:in `<top (required)>'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/activesupport-5.2.0/lib/active_support/dependencies.rb:283:in `require'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/activesupport-5.2.0/lib/active_support/dependencies.rb:283:in `block in require'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/activesupport-5.2.0/lib/active_support/dependencies.rb:249:in `load_dependency'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/activesupport-5.2.0/lib/active_support/dependencies.rb:283:in `require'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/spring-2.0.2/lib/spring/application.rb:102:in `preload'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/spring-2.0.2/lib/spring/application.rb:153:in `serve'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/spring-2.0.2/lib/spring/application.rb:141:in `block in run'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/spring-2.0.2/lib/spring/application.rb:135:in `loop'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/spring-2.0.2/lib/spring/application.rb:135:in `run'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/spring-2.0.2/lib/spring/application/boot.rb:19:in `<top (required)>'
    from /Users/ktg/.rvm/rubies/ruby-2.5.1/lib/ruby/site_ruby/2.5.0/rubygems/core_ext/kernel_require.rb:59:in `require'
    from /Users/ktg/.rvm/rubies/ruby-2.5.1/lib/ruby/site_ruby/2.5.0/rubygems/core_ext/kernel_require.rb:59:in `require'
    from -e:1:in `<main>'

위의 에러가 났습니다.

이 에러는 application.rb 내부의 Rack::Cors 문제입니다. 아래 링크에 해결책이 자세히 나와있습니다.

ruby – Error when running Rails application – Stack Overflow

raise_in_transactional_callbacks 문제

/Users/ktg/.rvm/gems/ruby-2.5.1/gems/activerecord-5.2.0/lib/active_record/dynamic_matchers.rb:22:in `method_missing': undefined method `raise_in_transactional_callbacks=' for ActiveRecord::Base:Class (NoMethodError)
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/activerecord-5.2.0/lib/active_record/railtie.rb:124:in `block (3 levels) in <class:Railtie>'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/activerecord-5.2.0/lib/active_record/railtie.rb:123:in `each'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/activerecord-5.2.0/lib/active_record/railtie.rb:123:in `block (2 levels) in <class:Railtie>'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/activesupport-5.2.0/lib/active_support/lazy_load_hooks.rb:71:in `instance_eval'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/activesupport-5.2.0/lib/active_support/lazy_load_hooks.rb:71:in `block in execute_hook'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/activesupport-5.2.0/lib/active_support/lazy_load_hooks.rb:62:in `with_execution_control'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/activesupport-5.2.0/lib/active_support/lazy_load_hooks.rb:67:in `execute_hook'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/activesupport-5.2.0/lib/active_support/lazy_load_hooks.rb:52:in `block in run_load_hooks'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/activesupport-5.2.0/lib/active_support/lazy_load_hooks.rb:51:in `each'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/activesupport-5.2.0/lib/active_support/lazy_load_hooks.rb:51:in `run_load_hooks'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/activerecord-5.2.0/lib/active_record/base.rb:328:in `<module:ActiveRecord>'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/activerecord-5.2.0/lib/active_record/base.rb:27:in `<top (required)>'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/activesupport-5.2.0/lib/active_support/dependencies.rb:283:in `require'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/activesupport-5.2.0/lib/active_support/dependencies.rb:283:in `block in require'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/activesupport-5.2.0/lib/active_support/dependencies.rb:247:in `block in load_dependency'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/activesupport-5.2.0/lib/active_support/dependencies.rb:653:in `new_constants_in'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/activesupport-5.2.0/lib/active_support/dependencies.rb:247:in `load_dependency'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/activesupport-5.2.0/lib/active_support/dependencies.rb:283:in `require'
    from /Users/ktg/privates/my_projects/app/models/application_record.rb:1:in `<top (required)>'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/activesupport-5.2.0/lib/active_support/dependencies.rb:468:in `load'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/activesupport-5.2.0/lib/active_support/dependencies.rb:468:in `block in load_file'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/activesupport-5.2.0/lib/active_support/dependencies.rb:653:in `new_constants_in'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/activesupport-5.2.0/lib/active_support/dependencies.rb:467:in `load_file'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/activesupport-5.2.0/lib/active_support/dependencies.rb:365:in `block in require_or_load'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/activesupport-5.2.0/lib/active_support/dependencies.rb:37:in `block in load_interlock'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/activesupport-5.2.0/lib/active_support/dependencies/interlock.rb:14:in `block in loading'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/activesupport-5.2.0/lib/active_support/concurrency/share_lock.rb:151:in `exclusive'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/activesupport-5.2.0/lib/active_support/dependencies/interlock.rb:13:in `loading'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/activesupport-5.2.0/lib/active_support/dependencies.rb:37:in `load_interlock'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/activesupport-5.2.0/lib/active_support/dependencies.rb:348:in `require_or_load'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/activesupport-5.2.0/lib/active_support/dependencies.rb:502:in `load_missing_constant'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/activesupport-5.2.0/lib/active_support/dependencies.rb:193:in `const_missing'
    from /Users/ktg/privates/my_projects/app/models/user.rb:1:in `<top (required)>'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/activesupport-5.2.0/lib/active_support/dependencies.rb:468:in `load'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/activesupport-5.2.0/lib/active_support/dependencies.rb:468:in `block in load_file'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/activesupport-5.2.0/lib/active_support/dependencies.rb:653:in `new_constants_in'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/activesupport-5.2.0/lib/active_support/dependencies.rb:467:in `load_file'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/activesupport-5.2.0/lib/active_support/dependencies.rb:365:in `block in require_or_load'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/activesupport-5.2.0/lib/active_support/dependencies.rb:37:in `block in load_interlock'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/activesupport-5.2.0/lib/active_support/dependencies/interlock.rb:14:in `block in loading'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/activesupport-5.2.0/lib/active_support/concurrency/share_lock.rb:151:in `exclusive'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/activesupport-5.2.0/lib/active_support/dependencies/interlock.rb:13:in `loading'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/activesupport-5.2.0/lib/active_support/dependencies.rb:37:in `load_interlock'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/activesupport-5.2.0/lib/active_support/dependencies.rb:348:in `require_or_load'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/activesupport-5.2.0/lib/active_support/dependencies.rb:502:in `load_missing_constant'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/activesupport-5.2.0/lib/active_support/dependencies.rb:193:in `const_missing'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/activesupport-5.2.0/lib/active_support/inflector/methods.rb:283:in `const_get'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/activesupport-5.2.0/lib/active_support/inflector/methods.rb:283:in `block in constantize'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/activesupport-5.2.0/lib/active_support/inflector/methods.rb:281:in `each'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/activesupport-5.2.0/lib/active_support/inflector/methods.rb:281:in `inject'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/activesupport-5.2.0/lib/active_support/inflector/methods.rb:281:in `constantize'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/activesupport-5.2.0/lib/active_support/dependencies.rb:574:in `get'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/activesupport-5.2.0/lib/active_support/dependencies.rb:605:in `constantize'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/devise-4.4.3/lib/devise.rb:316:in `get'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/devise-4.4.3/lib/devise/mapping.rb:83:in `to'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/devise-4.4.3/lib/devise/mapping.rb:78:in `modules'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/devise-4.4.3/lib/devise/mapping.rb:95:in `routes'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/devise-4.4.3/lib/devise/mapping.rb:162:in `default_used_route'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/devise-4.4.3/lib/devise/mapping.rb:72:in `initialize'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/devise-4.4.3/lib/devise.rb:346:in `new'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/devise-4.4.3/lib/devise.rb:346:in `add_mapping'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/devise-4.4.3/lib/devise/rails/routes.rb:243:in `block in devise_for'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/devise-4.4.3/lib/devise/rails/routes.rb:242:in `each'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/devise-4.4.3/lib/devise/rails/routes.rb:242:in `devise_for'
    from /Users/ktg/privates/my_projects/config/routes.rb:8:in `block in <top (required)>'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/actionpack-5.2.0/lib/action_dispatch/routing/route_set.rb:432:in `instance_exec'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/actionpack-5.2.0/lib/action_dispatch/routing/route_set.rb:432:in `eval_block'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/actionpack-5.2.0/lib/action_dispatch/routing/route_set.rb:414:in `draw'
    from /Users/ktg/privates/my_projects/config/routes.rb:1:in `<top (required)>'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/activesupport-5.2.0/lib/active_support/dependencies.rb:277:in `load'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/activesupport-5.2.0/lib/active_support/dependencies.rb:277:in `block in load'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/activesupport-5.2.0/lib/active_support/dependencies.rb:249:in `load_dependency'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/activesupport-5.2.0/lib/active_support/dependencies.rb:277:in `load'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/railties-5.2.0/lib/rails/application/routes_reloader.rb:57:in `block in load_paths'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/railties-5.2.0/lib/rails/application/routes_reloader.rb:57:in `each'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/railties-5.2.0/lib/rails/application/routes_reloader.rb:57:in `load_paths'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/railties-5.2.0/lib/rails/application/routes_reloader.rb:20:in `reload!'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/railties-5.2.0/lib/rails/application/routes_reloader.rb:43:in `block in updater'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/activesupport-5.2.0/lib/active_support/file_update_checker.rb:83:in `execute'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/railties-5.2.0/lib/rails/application/routes_reloader.rb:44:in `updater'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/railties-5.2.0/lib/rails/application/routes_reloader.rb:33:in `execute_if_updated'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/railties-5.2.0/lib/rails/application/finisher.rb:130:in `block in <module:Finisher>'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/railties-5.2.0/lib/rails/initializable.rb:32:in `instance_exec'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/railties-5.2.0/lib/rails/initializable.rb:32:in `run'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/railties-5.2.0/lib/rails/initializable.rb:61:in `block in run_initializers'
    from /Users/ktg/.rvm/rubies/ruby-2.5.1/lib/ruby/2.5.0/tsort.rb:228:in `block in tsort_each'
    from /Users/ktg/.rvm/rubies/ruby-2.5.1/lib/ruby/2.5.0/tsort.rb:350:in `block (2 levels) in each_strongly_connected_component'
    from /Users/ktg/.rvm/rubies/ruby-2.5.1/lib/ruby/2.5.0/tsort.rb:431:in `each_strongly_connected_component_from'
    from /Users/ktg/.rvm/rubies/ruby-2.5.1/lib/ruby/2.5.0/tsort.rb:349:in `block in each_strongly_connected_component'
    from /Users/ktg/.rvm/rubies/ruby-2.5.1/lib/ruby/2.5.0/tsort.rb:347:in `each'
    from /Users/ktg/.rvm/rubies/ruby-2.5.1/lib/ruby/2.5.0/tsort.rb:347:in `call'
    from /Users/ktg/.rvm/rubies/ruby-2.5.1/lib/ruby/2.5.0/tsort.rb:347:in `each_strongly_connected_component'
    from /Users/ktg/.rvm/rubies/ruby-2.5.1/lib/ruby/2.5.0/tsort.rb:226:in `tsort_each'
    from /Users/ktg/.rvm/rubies/ruby-2.5.1/lib/ruby/2.5.0/tsort.rb:205:in `tsort_each'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/railties-5.2.0/lib/rails/initializable.rb:60:in `run_initializers'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/railties-5.2.0/lib/rails/application.rb:361:in `initialize!'
    from /Users/ktg/privates/my_projects/config/environment.rb:5:in `<top (required)>'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/activesupport-5.2.0/lib/active_support/dependencies.rb:283:in `require'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/activesupport-5.2.0/lib/active_support/dependencies.rb:283:in `block in require'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/activesupport-5.2.0/lib/active_support/dependencies.rb:249:in `load_dependency'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/activesupport-5.2.0/lib/active_support/dependencies.rb:283:in `require'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/spring-2.0.2/lib/spring/application.rb:102:in `preload'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/spring-2.0.2/lib/spring/application.rb:153:in `serve'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/spring-2.0.2/lib/spring/application.rb:141:in `block in run'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/spring-2.0.2/lib/spring/application.rb:135:in `loop'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/spring-2.0.2/lib/spring/application.rb:135:in `run'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/spring-2.0.2/lib/spring/application/boot.rb:19:in `<top (required)>'
    from /Users/ktg/.rvm/rubies/ruby-2.5.1/lib/ruby/site_ruby/2.5.0/rubygems/core_ext/kernel_require.rb:59:in `require'
    from /Users/ktg/.rvm/rubies/ruby-2.5.1/lib/ruby/site_ruby/2.5.0/rubygems/core_ext/kernel_require.rb:59:in `require'
    from -e:1:in `<main>'

application.rb에 있는 하단 내용을 삭제 합니다.

config.active_record.raise_in_transactional_callbacks = true

하단 내용 참고

https://stackoverflow.com/questions/37464966/what-causes-deprecation-warning-activerecordbase-raise-in-transactional-callb

Coffeescript Error

이제 레일즈 서버를 실행하고 접속해봅니다.

$ rails s
$ curl localhost:3000

Output

=> Booting Puma
=> Rails 5.2.0 application starting in development
=> Run `rails server -h` for more startup options
[32087] Puma starting in cluster mode...
[32087] * Version 3.11.4 (ruby 2.5.1-p57), codename: Love Song
[32087] * Min threads: 5, max threads: 5
[32087] * Environment: development
[32087] * Process workers: 2
[32087] * Preloading application
[32087] * Listening on tcp://0.0.0.0:3000
[32087] Use Ctrl-C to stop
[32087] - Worker 0 (pid: 32090) booted, phase: 0
[32087] - Worker 1 (pid: 32091) booted, phase: 0
Started GET "/" for 127.0.0.1 at 2018-05-29 23:37:10 +0900
   (0.4ms)  SET  @@SESSION.sql_mode = CONCAT(CONCAT(@@sql_mode, ',STRICT_ALL_TABLES'), ',NO_AUTO_VALUE_ON_ZERO'),  @@SESSION.sql_auto_is_null = 0, @@SESSION.wait_timeout = 2147483
   (0.3ms)  SELECT `schema_migrations`.`version` FROM `schema_migrations` ORDER BY `schema_migrations`.`version` ASC
Processing by MainController#index as HTML
Completed 401 Unauthorized in 14ms (ActiveRecord: 0.0ms)


Started GET "/login" for 127.0.0.1 at 2018-05-29 23:37:10 +0900
Processing by Devise::SessionsController#new as HTML
  Rendering devise/sessions/new.html.erb within layouts/application
  Rendered devise/shared/_links.html.erb (1.0ms)
  Rendered devise/sessions/new.html.erb within layouts/application (16.6ms)
Completed 500 Internal Server Error in 6804ms (ActiveRecord: 1.4ms)



LoadError (cannot load such file -- coffee_script):

app/views/layouts/application.html.erb:5:in `_app_views_layouts_application_html_erb___3099409563303512009_70257788966240'

NameError: uninitialized constant Mime::HTML
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/web-console-2.3.0/lib/web_console/middleware.rb:58:in `acceptable_content_type?'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/web-console-2.3.0/lib/web_console/middleware.rb:36:in `block in call'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/web-console-2.3.0/lib/web_console/middleware.rb:18:in `catch'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/web-console-2.3.0/lib/web_console/middleware.rb:18:in `call'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/actionpack-5.2.0/lib/action_dispatch/middleware/show_exceptions.rb:33:in `call'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/railties-5.2.0/lib/rails/rack/logger.rb:38:in `call_app'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/railties-5.2.0/lib/rails/rack/logger.rb:26:in `block in call'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/activesupport-5.2.0/lib/active_support/tagged_logging.rb:71:in `block in tagged'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/activesupport-5.2.0/lib/active_support/tagged_logging.rb:28:in `tagged'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/activesupport-5.2.0/lib/active_support/tagged_logging.rb:71:in `tagged'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/railties-5.2.0/lib/rails/rack/logger.rb:26:in `call'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/actionpack-5.2.0/lib/action_dispatch/middleware/remote_ip.rb:81:in `call'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/actionpack-5.2.0/lib/action_dispatch/middleware/request_id.rb:27:in `call'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/rack-2.0.5/lib/rack/method_override.rb:22:in `call'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/rack-2.0.5/lib/rack/runtime.rb:22:in `call'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/activesupport-5.2.0/lib/active_support/cache/strategy/local_cache_middleware.rb:29:in `call'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/actionpack-5.2.0/lib/action_dispatch/middleware/executor.rb:14:in `call'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/actionpack-5.2.0/lib/action_dispatch/middleware/static.rb:127:in `call'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/rack-2.0.5/lib/rack/sendfile.rb:111:in `call'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/rack-cors-1.0.2/lib/rack/cors.rb:97:in `call'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/railties-5.2.0/lib/rails/engine.rb:524:in `call'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/puma-3.11.4/lib/puma/configuration.rb:225:in `call'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/puma-3.11.4/lib/puma/server.rb:632:in `handle_request'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/puma-3.11.4/lib/puma/server.rb:446:in `process_client'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/puma-3.11.4/lib/puma/server.rb:306:in `block in run'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/puma-3.11.4/lib/puma/thread_pool.rb:120:in `block in spawn_thread'
Started GET "/assets/css/main.min.css" for 127.0.0.1 at 2018-05-29 23:37:18 +0900

ActionController::RoutingError (No route matches [GET] "/assets/css/main.min.css"):

actionpack (5.2.0) lib/action_dispatch/middleware/debug_exceptions.rb:65:in `call'
web-console (2.3.0) lib/web_console/middleware.rb:28:in `block in call'
web-console (2.3.0) lib/web_console/middleware.rb:18:in `catch'
web-console (2.3.0) lib/web_console/middleware.rb:18:in `call'
actionpack (5.2.0) lib/action_dispatch/middleware/show_exceptions.rb:33:in `call'
railties (5.2.0) lib/rails/rack/logger.rb:38:in `call_app'
railties (5.2.0) lib/rails/rack/logger.rb:26:in `block in call'
activesupport (5.2.0) lib/active_support/tagged_logging.rb:71:in `block in tagged'
activesupport (5.2.0) lib/active_support/tagged_logging.rb:28:in `tagged'
activesupport (5.2.0) lib/active_support/tagged_logging.rb:71:in `tagged'
railties (5.2.0) lib/rails/rack/logger.rb:26:in `call'
actionpack (5.2.0) lib/action_dispatch/middleware/remote_ip.rb:81:in `call'
actionpack (5.2.0) lib/action_dispatch/middleware/request_id.rb:27:in `call'
rack (2.0.5) lib/rack/method_override.rb:22:in `call'
rack (2.0.5) lib/rack/runtime.rb:22:in `call'
activesupport (5.2.0) lib/active_support/cache/strategy/local_cache_middleware.rb:29:in `call'
actionpack (5.2.0) lib/action_dispatch/middleware/executor.rb:14:in `call'
actionpack (5.2.0) lib/action_dispatch/middleware/static.rb:127:in `call'
rack (2.0.5) lib/rack/sendfile.rb:111:in `call'
rack-cors (1.0.2) lib/rack/cors.rb:97:in `call'
railties (5.2.0) lib/rails/engine.rb:524:in `call'
puma (3.11.4) lib/puma/configuration.rb:225:in `call'
puma (3.11.4) lib/puma/server.rb:632:in `handle_request'
puma (3.11.4) lib/puma/server.rb:446:in `process_client'
puma (3.11.4) lib/puma/server.rb:306:in `block in run'
puma (3.11.4) lib/puma/thread_pool.rb:120:in `block in spawn_thread'

NameError: uninitialized constant Mime::HTML
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/web-console-2.3.0/lib/web_console/middleware.rb:58:in `acceptable_content_type?'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/web-console-2.3.0/lib/web_console/middleware.rb:36:in `block in call'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/web-console-2.3.0/lib/web_console/middleware.rb:18:in `catch'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/web-console-2.3.0/lib/web_console/middleware.rb:18:in `call'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/actionpack-5.2.0/lib/action_dispatch/middleware/show_exceptions.rb:33:in `call'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/railties-5.2.0/lib/rails/rack/logger.rb:38:in `call_app'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/railties-5.2.0/lib/rails/rack/logger.rb:26:in `block in call'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/activesupport-5.2.0/lib/active_support/tagged_logging.rb:71:in `block in tagged'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/activesupport-5.2.0/lib/active_support/tagged_logging.rb:28:in `tagged'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/activesupport-5.2.0/lib/active_support/tagged_logging.rb:71:in `tagged'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/railties-5.2.0/lib/rails/rack/logger.rb:26:in `call'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/actionpack-5.2.0/lib/action_dispatch/middleware/remote_ip.rb:81:in `call'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/actionpack-5.2.0/lib/action_dispatch/middleware/request_id.rb:27:in `call'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/rack-2.0.5/lib/rack/method_override.rb:22:in `call'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/rack-2.0.5/lib/rack/runtime.rb:22:in `call'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/activesupport-5.2.0/lib/active_support/cache/strategy/local_cache_middleware.rb:29:in `call'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/actionpack-5.2.0/lib/action_dispatch/middleware/executor.rb:14:in `call'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/actionpack-5.2.0/lib/action_dispatch/middleware/static.rb:127:in `call'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/rack-2.0.5/lib/rack/sendfile.rb:111:in `call'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/rack-cors-1.0.2/lib/rack/cors.rb:97:in `call'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/railties-5.2.0/lib/rails/engine.rb:524:in `call'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/puma-3.11.4/lib/puma/configuration.rb:225:in `call'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/puma-3.11.4/lib/puma/server.rb:632:in `handle_request'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/puma-3.11.4/lib/puma/server.rb:446:in `process_client'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/puma-3.11.4/lib/puma/server.rb:306:in `block in run'
    from /Users/ktg/.rvm/gems/ruby-2.5.1/gems/puma-3.11.4/lib/puma/thread_pool.rb:120:in `block in spawn_thread'

엄청나게 긴 에러를 만납니다.
원인을 찾아보니, 원인은 단순합니다.
사용하지 않는 coffeescript 파일들이 프로젝트에 존재하고 있었습니다.

아래 명령으로 확인후 삭제 해줍니다.

$ find . -name "*.coffee"

그러고도 에러가 난다면 **cache*** 문제입니다.

cache 를 삭제해줍니다.

$ rake tmp:cache:clear

관련 내용은 여기서 확인 가능합니다.

web-console 문제

위의 에러에서

NameError: uninitialized constant Mime::HTML
이런 에러가 있는데 이건 web-console 버전 문제였습니다..

web-console을 업데이트 해줍니다.

$ bundle update web-console

다시 실행합니다.

결론


여기까지 제가 해결한 문제였습니다.

Author :
github: https://github.com/9to6

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