uninitialized constant Rack::Session::Abstract::Persisted to start Rails 5 server - ruby-on-rails

I am getting this error while running command rails s
=> Booting Thin
=> Rails 5.0.0.1 application starting in development on http://localhost:3000
=> Run `rails server -h` for more startup options
Exiting
/var/lib/gems/2.2.0/gems/actionpack-5.0.0.1/lib/action_dispatch/middleware/session/abstract_store.rb:90:in `<module:Session>': uninitialized constant Rack::Session::Abstract::Persisted (NameError)
from /var/lib/gems/2.2.0/gems/actionpack-5.0.0.1/lib/action_dispatch/middleware/session/abstract_store.rb:8:in `<module:ActionDispatch>'
from /var/lib/gems/2.2.0/gems/actionpack-5.0.0.1/lib/action_dispatch/middleware/session/abstract_store.rb:7:in `<top (required)>'
from /var/lib/gems/2.2.0/gems/actionpack-5.0.0.1/lib/action_dispatch/middleware/session/cookie_store.rb:2:in `<top (required)>'
from /var/lib/gems/2.2.0/gems/railties-5.0.0.1/lib/rails/application/configuration.rb:181:in `const_get'
from /var/lib/gems/2.2.0/gems/railties-5.0.0.1/lib/rails/application/configuration.rb:181:in `session_store'
from /var/lib/gems/2.2.0/gems/railties-5.0.0.1/lib/rails/application/default_middleware_stack.rb:58:in `block in build_stack'
from /var/lib/gems/2.2.0/gems/railties-5.0.0.1/lib/rails/application/default_middleware_stack.rb:13:in `tap'
from /var/lib/gems/2.2.0/gems/railties-5.0.0.1/lib/rails/application/default_middleware_stack.rb:13:in `build_stack'
from /var/lib/gems/2.2.0/gems/railties-5.0.0.1/lib/rails/application.rb:504:in `default_middleware_stack'
from /var/lib/gems/2.2.0/gems/railties-5.0.0.1/lib/rails/engine.rb:506:in `block in app'
from /var/lib/gems/2.2.0/gems/railties-5.0.0.1/lib/rails/engine.rb:504:in `synchronize'
from /var/lib/gems/2.2.0/gems/railties-5.0.0.1/lib/rails/engine.rb:504:in `app'
from /var/lib/gems/2.2.0/gems/railties-5.0.0.1/lib/rails/application/finisher.rb:37:in `block in <module:Finisher>'
from /var/lib/gems/2.2.0/gems/railties-5.0.0.1/lib/rails/initializable.rb:30:in `instance_exec'
from /var/lib/gems/2.2.0/gems/railties-5.0.0.1/lib/rails/initializable.rb:30:in `run'
from /var/lib/gems/2.2.0/gems/railties-5.0.0.1/lib/rails/initializable.rb:55:in `block in run_initializers'
from /usr/lib/ruby/2.2.0/tsort.rb:226:in `block in tsort_each'
from /usr/lib/ruby/2.2.0/tsort.rb:348:in `block (2 levels) in each_strongly_connected_component'
from /usr/lib/ruby/2.2.0/tsort.rb:429:in `each_strongly_connected_component_from'
from /usr/lib/ruby/2.2.0/tsort.rb:347:in `block in each_strongly_connected_component'
from /usr/lib/ruby/2.2.0/tsort.rb:345:in `each'
from /usr/lib/ruby/2.2.0/tsort.rb:345:in `call'
from /usr/lib/ruby/2.2.0/tsort.rb:345:in `each_strongly_connected_component'
from /usr/lib/ruby/2.2.0/tsort.rb:224:in `tsort_each'
from /usr/lib/ruby/2.2.0/tsort.rb:203:in `tsort_each'
from /var/lib/gems/2.2.0/gems/railties-5.0.0.1/lib/rails/initializable.rb:54:in `run_initializers'
from /var/lib/gems/2.2.0/gems/railties-5.0.0.1/lib/rails/application.rb:352:in `initialize!'
from /root/sites/instagramm/config/environment.rb:5:in `<top (required)>'
from /root/sites/instagramm/config.ru:3:in `require_relative'
from /root/sites/instagramm/config.ru:3:in `block in <main>'
from /usr/lib/ruby/vendor_ruby/rack/builder.rb:55:in `instance_eval'
from /usr/lib/ruby/vendor_ruby/rack/builder.rb:55:in `initialize'
from /root/sites/instagramm/config.ru:in `new'
from /root/sites/instagramm/config.ru:in `<main>'
from /usr/lib/ruby/vendor_ruby/rack/builder.rb:49:in `eval'
from /usr/lib/ruby/vendor_ruby/rack/builder.rb:49:in `new_from_string'
from /usr/lib/ruby/vendor_ruby/rack/builder.rb:40:in `parse_file'
from /var/lib/gems/2.2.0/gems/rack-2.0.1/lib/rack/server.rb:318:in `build_app_and_options_from_config'
from /var/lib/gems/2.2.0/gems/rack-2.0.1/lib/rack/server.rb:218:in `app'
from /var/lib/gems/2.2.0/gems/railties-5.0.0.1/lib/rails/commands/server.rb:59:in `app'
from /var/lib/gems/2.2.0/gems/rack-2.0.1/lib/rack/server.rb:353:in `wrapped_app'
from /var/lib/gems/2.2.0/gems/railties-5.0.0.1/lib/rails/commands/server.rb:124:in `log_to_stdout'
from /var/lib/gems/2.2.0/gems/railties-5.0.0.1/lib/rails/commands/server.rb:77:in `start'
from /var/lib/gems/2.2.0/gems/railties-5.0.0.1/lib/rails/commands/commands_tasks.rb:90:in `block in server'
from /var/lib/gems/2.2.0/gems/railties-5.0.0.1/lib/rails/commands/commands_tasks.rb:85:in `tap'
from /var/lib/gems/2.2.0/gems/railties-5.0.0.1/lib/rails/commands/commands_tasks.rb:85:in `server'
from /var/lib/gems/2.2.0/gems/railties-5.0.0.1/lib/rails/commands/commands_tasks.rb:49:in `run_command!'
from /var/lib/gems/2.2.0/gems/railties-5.0.0.1/lib/rails/commands.rb:18:in `<top (required)>'
from bin/rails:4:in `require'
from bin/rails:4:in `<main>'

It looks you're using rack from two places /usr/lib/ruby/vendor_ruby/rack and /var/lib/gems/2.2.0/gems/rack-2.0.1.
Removing that vendor_ruby (not confirmed) could help. Buy maybe a better choice is to install rvm or rbenv to handle your ruby/gems versions.

Related

Ruby On Rails Server Issue (Ubuntu Bash on Windows 10)

In another thread I explained I am a newbie RoR. I had a problem with the puma 3.8.0 gem then I downgraded to fixed one issue. But, it created another problem:
/root/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/railties-5.0.2/lib/rails/app_loader.rb:40: warning: Insecure world writable dir /root/.rbenv/versions in PATH, mode 040777
=> Booting Puma
=> Rails 5.0.2 application starting in development on http://localhost:3000
=> Run `rails server -h` for more startup options
Exiting
/root/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/rb-inotify-0.9.8/lib/rb-inotify/watcher.rb:74:in `initialize': Invalid argument - Failed to watch "/root/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/activesupport-5.0.2/lib/active_support/locale": the given event mask contains no legal events; or fd is not an inotify file descriptor. (Errno::EINVAL)
from /root/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/rb-inotify-0.9.8/lib/rb-inotify/notifier.rb:190:in `new'
from /root/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/rb-inotify-0.9.8/lib/rb-inotify/notifier.rb:190:in `watch'
from /root/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/rb-inotify-0.9.8/lib/rb-inotify/notifier.rb:208:in `watch'
from /root/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/listen-3.0.8/lib/listen/adapter/linux.rb:32:in `_configure'
from /root/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/listen-3.0.8/lib/listen/adapter/base.rb:45:in `block in configure'
from /root/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/listen-3.0.8/lib/listen/adapter/base.rb:40:in `each'
from /root/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/listen-3.0.8/lib/listen/adapter/base.rb:40:in `configure'
from /root/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/listen-3.0.8/lib/listen/adapter/base.rb:63:in `start'
from /root/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/listen-3.0.8/lib/listen/backend.rb:28:in `start'
from /root/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/listen-3.0.8/lib/listen/listener.rb:67:in `block in <class:Listener>'
from /root/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/listen-3.0.8/lib/listen/fsm.rb:120:in `instance_eval'
from /root/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/listen-3.0.8/lib/listen/fsm.rb:120:in `call'
from /root/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/listen-3.0.8/lib/listen/fsm.rb:91:in `transition_with_callbacks!'
from /root/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/listen-3.0.8/lib/listen/fsm.rb:57:in `transition'
from /root/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/listen-3.0.8/lib/listen/listener.rb:90:in `start'
from /root/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/activesupport-5.0.2/lib/active_support/evented_file_update_checker.rb:90:in `boot!'
from /root/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/activesupport-5.0.2/lib/active_support/evented_file_update_checker.rb:61:in `initialize'
from /root/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/activesupport-5.0.2/lib/active_support/i18n_railtie.rb:59:in `new'
from /root/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/activesupport-5.0.2/lib/active_support/i18n_railtie.rb:59:in `initialize_i18n'
from /root/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/activesupport-5.0.2/lib/active_support/i18n_railtie.rb:15:in `block in <class:Railtie>'
from /root/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/activesupport-5.0.2/lib/active_support/lazy_load_hooks.rb:41:in `execute_hook'
from /root/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/activesupport-5.0.2/lib/active_support/lazy_load_hooks.rb:50:in `block in run_load_hooks'
from /root/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/activesupport-5.0.2/lib/active_support/lazy_load_hooks.rb:49:in `each'
from /root/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/activesupport-5.0.2/lib/active_support/lazy_load_hooks.rb:49:in `run_load_hooks'
from /root/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/railties-5.0.2/lib/rails/application/finisher.rb:65:in `block in <module:Finisher>'
from /root/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/railties-5.0.2/lib/rails/initializable.rb:30:in `instance_exec'
from /root/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/railties-5.0.2/lib/rails/initializable.rb:30:in `run'
from /root/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/railties-5.0.2/lib/rails/initializable.rb:55:in `block in run_initializers'
from /root/.rbenv/versions/2.4.0/lib/ruby/2.4.0/tsort.rb:228:in `block in tsort_each'
from /root/.rbenv/versions/2.4.0/lib/ruby/2.4.0/tsort.rb:350:in `block (2 levels) in each_strongly_connected_component'
from /root/.rbenv/versions/2.4.0/lib/ruby/2.4.0/tsort.rb:431:in `each_strongly_connected_component_from'
from /root/.rbenv/versions/2.4.0/lib/ruby/2.4.0/tsort.rb:349:in `block in each_strongly_connected_component'
from /root/.rbenv/versions/2.4.0/lib/ruby/2.4.0/tsort.rb:347:in `each'
from /root/.rbenv/versions/2.4.0/lib/ruby/2.4.0/tsort.rb:347:in `call'
from /root/.rbenv/versions/2.4.0/lib/ruby/2.4.0/tsort.rb:347:in `each_strongly_connected_component'
from /root/.rbenv/versions/2.4.0/lib/ruby/2.4.0/tsort.rb:226:in `tsort_each'
from /root/.rbenv/versions/2.4.0/lib/ruby/2.4.0/tsort.rb:205:in `tsort_each'
from /root/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/railties-5.0.2/lib/rails/initializable.rb:54:in `run_initializers'
from /root/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/railties-5.0.2/lib/rails/application.rb:352:in `initialize!'
from /root/appnew/config/environment.rb:5:in `<top (required)>'
from /root/appnew/config.ru:3:in `require_relative'
from /root/appnew/config.ru:3:in `block in <main>'
from /root/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/rack-2.0.1/lib/rack/builder.rb:55:in `instance_eval'
from /root/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/rack-2.0.1/lib/rack/builder.rb:55:in `initialize'
from /root/appnew/config.ru:in `new'
from /root/appnew/config.ru:in `<main>'
from /root/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/rack-2.0.1/lib/rack/builder.rb:49:in `eval'
from /root/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/rack-2.0.1/lib/rack/builder.rb:49:in `new_from_string'
from /root/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/rack-2.0.1/lib/rack/builder.rb:40:in `parse_file'
from /root/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/rack-2.0.1/lib/rack/server.rb:318:in `build_app_and_options_from_config'
from /root/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/rack-2.0.1/lib/rack/server.rb:218:in `app'
from /root/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/railties-5.0.2/lib/rails/commands/server.rb:59:in `app'
from /root/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/rack-2.0.1/lib/rack/server.rb:353:in `wrapped_app'
from /root/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/railties-5.0.2/lib/rails/commands/server.rb:124:in `log_to_stdout'
from /root/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/railties-5.0.2/lib/rails/commands/server.rb:77:in `start'
from /root/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/railties-5.0.2/lib/rails/commands/commands_tasks.rb:90:in `block in server'
from /root/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/railties-5.0.2/lib/rails/commands/commands_tasks.rb:85:in `tap'
from /root/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/railties-5.0.2/lib/rails/commands/commands_tasks.rb:85:in `server'
from /root/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/railties-5.0.2/lib/rails/commands/commands_tasks.rb:49:in `run_command!'
from /root/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/railties-5.0.2/lib/rails/commands.rb:18:in `<top (required)>'
from /root/appnew/bin/rails:9:in `require'
from /root/appnew/bin/rails:9:in `<top (required)>'
from /root/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/spring-2.0.1/lib/spring/client/rails.rb:28:in `load'
from /root/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/spring-2.0.1/lib/spring/client/rails.rb:28:in `call'
from /root/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/spring-2.0.1/lib/spring/client/command.rb:7:in `call'
from /root/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/spring-2.0.1/lib/spring/client.rb:30:in `run'
from /root/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/spring-2.0.1/bin/spring:49:in `<top (required)>'
from /root/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/spring-2.0.1/lib/spring/binstub.rb:31:in `load'
from /root/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/spring-2.0.1/lib/spring/binstub.rb:31:in `<top (required)>'
from /root/.rbenv/versions/2.4.0/lib/ruby/2.4.0/rubygems/core_ext/kernel_require.rb:68:in `require'
from /root/.rbenv/versions/2.4.0/lib/ruby/2.4.0/rubygems/core_ext/kernel_require.rb:68:in `require'
from /root/appnew/bin/spring:15:in `<top (required)>'
from bin/rails:3:in `load'
from bin/rails:3:in `<main>'
I'm not too sure what I am looking at? Hoping someone can point me in the right direction.
According to https://github.com/rails/rails/issues/26054 you can create an app with:
rails new --skip-spring --skip-listen APP_NAME
As noted in the link above this should be fixed in Windows 10 Insider builds >= 14942.
I got rails server working using the command above to create my rails app.
My ruby version is 2.4.0p0, rails version is 5.1.0.beta1 and puma version 3.7.1.

Any rails server doesn't start

Getting the same error every time when trying to start ANY project on rails 4 or 5 using ruby 2.2.5 and 2.3.1 even on the fresh projects.
Tried to reinstall rbenv but didn't help. Anybody got a solution?
fedyay#fedyay-note:~/shit$ rails s
=> Booting WEBrick
=> Rails 4.2.3 application starting in development on http://localhost:3000
=> Run `rails server -h` for more startup options
=> Ctrl-C to shutdown server
Exiting
/home/fedyay/.rbenv/versions/2.2.5/lib/ruby/2.2.0/psych.rb:370:in `parse': (<unknown>): did not find expected alphabetic or numeric character while scanning an alias at line 22 column 20 (Psych::SyntaxError)
from /home/fedyay/.rbenv/versions/2.2.5/lib/ruby/2.2.0/psych.rb:370:in `parse_stream'
from /home/fedyay/.rbenv/versions/2.2.5/lib/ruby/2.2.0/psych.rb:318:in `parse'
from /home/fedyay/.rbenv/versions/2.2.5/lib/ruby/2.2.0/psych.rb:245:in `load'
from /home/fedyay/.rbenv/versions/2.2.5/lib/ruby/gems/2.2.0/gems/railties-4.2.3/lib/rails/application.rb:391:in `secrets'
from /home/fedyay/.rbenv/versions/2.2.5/lib/ruby/gems/2.2.0/gems/railties-4.2.3/lib/rails/application.rb:178:in `key_generator'
from /home/fedyay/.rbenv/versions/2.2.5/lib/ruby/gems/2.2.0/gems/railties-4.2.3/lib/rails/application.rb:206:in `message_verifier'
from /home/fedyay/.rbenv/versions/2.2.5/lib/ruby/gems/2.2.0/gems/globalid-0.3.7/lib/global_id/railtie.rb:25:in `block (2 levels) in <class:Railtie>'
from /home/fedyay/.rbenv/versions/2.2.5/lib/ruby/gems/2.2.0/gems/activesupport-4.2.3/lib/active_support/lazy_load_hooks.rb:36:in `call'
from /home/fedyay/.rbenv/versions/2.2.5/lib/ruby/gems/2.2.0/gems/activesupport-4.2.3/lib/active_support/lazy_load_hooks.rb:36:in `execute_hook'
from /home/fedyay/.rbenv/versions/2.2.5/lib/ruby/gems/2.2.0/gems/activesupport-4.2.3/lib/active_support/lazy_load_hooks.rb:45:in `block in run_load_hooks'
from /home/fedyay/.rbenv/versions/2.2.5/lib/ruby/gems/2.2.0/gems/activesupport-4.2.3/lib/active_support/lazy_load_hooks.rb:44:in `each'
from /home/fedyay/.rbenv/versions/2.2.5/lib/ruby/gems/2.2.0/gems/activesupport-4.2.3/lib/active_support/lazy_load_hooks.rb:44:in `run_load_hooks'
from /home/fedyay/.rbenv/versions/2.2.5/lib/ruby/gems/2.2.0/gems/railties-4.2.3/lib/rails/application/finisher.rb:62:in `block in <module:Finisher>'
from /home/fedyay/.rbenv/versions/2.2.5/lib/ruby/gems/2.2.0/gems/railties-4.2.3/lib/rails/initializable.rb:30:in `instance_exec'
from /home/fedyay/.rbenv/versions/2.2.5/lib/ruby/gems/2.2.0/gems/railties-4.2.3/lib/rails/initializable.rb:30:in `run'
from /home/fedyay/.rbenv/versions/2.2.5/lib/ruby/gems/2.2.0/gems/railties-4.2.3/lib/rails/initializable.rb:55:in `block in run_initializers'
from /home/fedyay/.rbenv/versions/2.2.5/lib/ruby/2.2.0/tsort.rb:226:in `block in tsort_each'
from /home/fedyay/.rbenv/versions/2.2.5/lib/ruby/2.2.0/tsort.rb:348:in `block (2 levels) in each_strongly_connected_component'
from /home/fedyay/.rbenv/versions/2.2.5/lib/ruby/2.2.0/tsort.rb:429:in `each_strongly_connected_component_from'
from /home/fedyay/.rbenv/versions/2.2.5/lib/ruby/2.2.0/tsort.rb:347:in `block in each_strongly_connected_component'
from /home/fedyay/.rbenv/versions/2.2.5/lib/ruby/2.2.0/tsort.rb:345:in `each'
from /home/fedyay/.rbenv/versions/2.2.5/lib/ruby/2.2.0/tsort.rb:345:in `call'
from /home/fedyay/.rbenv/versions/2.2.5/lib/ruby/2.2.0/tsort.rb:345:in `each_strongly_connected_component'
from /home/fedyay/.rbenv/versions/2.2.5/lib/ruby/2.2.0/tsort.rb:224:in `tsort_each'
from /home/fedyay/.rbenv/versions/2.2.5/lib/ruby/2.2.0/tsort.rb:203:in `tsort_each'
from /home/fedyay/.rbenv/versions/2.2.5/lib/ruby/gems/2.2.0/gems/railties-4.2.3/lib/rails/initializable.rb:54:in `run_initializers'
from /home/fedyay/.rbenv/versions/2.2.5/lib/ruby/gems/2.2.0/gems/railties-4.2.3/lib/rails/application.rb:352:in `initialize!'
from /home/fedyay/shit/config/environment.rb:5:in `<top (required)>'
from /home/fedyay/shit/config.ru:3:in `require'
from /home/fedyay/shit/config.ru:3:in `block in <main>'
from /home/fedyay/.rbenv/versions/2.2.5/lib/ruby/gems/2.2.0/gems/rack-1.6.4/lib/rack/builder.rb:55:in `instance_eval'
from /home/fedyay/.rbenv/versions/2.2.5/lib/ruby/gems/2.2.0/gems/rack-1.6.4/lib/rack/builder.rb:55:in `initialize'
from /home/fedyay/shit/config.ru:in `new'
from /home/fedyay/shit/config.ru:in `<main>'
from /home/fedyay/.rbenv/versions/2.2.5/lib/ruby/gems/2.2.0/gems/rack-1.6.4/lib/rack/builder.rb:49:in `eval'
from /home/fedyay/.rbenv/versions/2.2.5/lib/ruby/gems/2.2.0/gems/rack-1.6.4/lib/rack/builder.rb:49:in `new_from_string'
from /home/fedyay/.rbenv/versions/2.2.5/lib/ruby/gems/2.2.0/gems/rack-1.6.4/lib/rack/builder.rb:40:in `parse_file'
from /home/fedyay/.rbenv/versions/2.2.5/lib/ruby/gems/2.2.0/gems/rack-1.6.4/lib/rack/server.rb:299:in `build_app_and_options_from_config'
from /home/fedyay/.rbenv/versions/2.2.5/lib/ruby/gems/2.2.0/gems/rack-1.6.4/lib/rack/server.rb:208:in `app'
from /home/fedyay/.rbenv/versions/2.2.5/lib/ruby/gems/2.2.0/gems/railties-4.2.3/lib/rails/commands/server.rb:61:in `app'
from /home/fedyay/.rbenv/versions/2.2.5/lib/ruby/gems/2.2.0/gems/rack-1.6.4/lib/rack/server.rb:336:in `wrapped_app'
from /home/fedyay/.rbenv/versions/2.2.5/lib/ruby/gems/2.2.0/gems/railties-4.2.3/lib/rails/commands/server.rb:139:in `log_to_stdout'
from /home/fedyay/.rbenv/versions/2.2.5/lib/ruby/gems/2.2.0/gems/railties-4.2.3/lib/rails/commands/server.rb:78:in `start'
from /home/fedyay/.rbenv/versions/2.2.5/lib/ruby/gems/2.2.0/gems/railties-4.2.3/lib/rails/commands/commands_tasks.rb:80:in `block in server'
from /home/fedyay/.rbenv/versions/2.2.5/lib/ruby/gems/2.2.0/gems/railties-4.2.3/lib/rails/commands/commands_tasks.rb:75:in `tap'
from /home/fedyay/.rbenv/versions/2.2.5/lib/ruby/gems/2.2.0/gems/railties-4.2.3/lib/rails/commands/commands_tasks.rb:75:in `server'
from /home/fedyay/.rbenv/versions/2.2.5/lib/ruby/gems/2.2.0/gems/railties-4.2.3/lib/rails/commands/commands_tasks.rb:39:in `run_command!'
from /home/fedyay/.rbenv/versions/2.2.5/lib/ruby/gems/2.2.0/gems/railties-4.2.3/lib/rails/commands.rb:17:in `<top (required)>'
from /home/fedyay/shit/bin/rails:9:in `require'
from /home/fedyay/shit/bin/rails:9:in `<top (required)>'
from /home/fedyay/.rbenv/versions/2.2.5/lib/ruby/gems/2.2.0/gems/spring-2.0.0/lib/spring/client/rails.rb:28:in `load'
from /home/fedyay/.rbenv/versions/2.2.5/lib/ruby/gems/2.2.0/gems/spring-2.0.0/lib/spring/client/rails.rb:28:in `call'
from /home/fedyay/.rbenv/versions/2.2.5/lib/ruby/gems/2.2.0/gems/spring-2.0.0/lib/spring/client/command.rb:7:in `call'
from /home/fedyay/.rbenv/versions/2.2.5/lib/ruby/gems/2.2.0/gems/spring-2.0.0/lib/spring/client.rb:30:in `run'
from /home/fedyay/.rbenv/versions/2.2.5/lib/ruby/gems/2.2.0/gems/spring-2.0.0/bin/spring:49:in `<top (required)>'
from /home/fedyay/.rbenv/versions/2.2.5/lib/ruby/gems/2.2.0/gems/spring-2.0.0/lib/spring/binstub.rb:31:in `load'
from /home/fedyay/.rbenv/versions/2.2.5/lib/ruby/gems/2.2.0/gems/spring-2.0.0/lib/spring/binstub.rb:31:in `<top (required)>'
from /home/fedyay/.rbenv/versions/2.2.5/lib/ruby/2.2.0/rubygems/core_ext/kernel_require.rb:69:in `require'
from /home/fedyay/.rbenv/versions/2.2.5/lib/ruby/2.2.0/rubygems/core_ext/kernel_require.rb:69:in `require'
from /home/fedyay/shit/bin/spring:14:in `<top (required)>'
from bin/rails:3:in `load'
from bin/rails:3:in `<main>'
Seems like you have tabs in your YAML file instead of spaces.
Change them to spaces from your editor settings
Solution for similar question is given here
So not realy sure what's going on but it started OK with 'sudo rails s'.

Not able to start rails server in 5.0.0.1 rails but works fine with 4.2.0.beta1

I am still learning ROR and I have spent a lot of time trying to figure it out.
I have tried to install all sorts of gems from different stackoverflow answers. Is there anyone that can help me with this? Thank You
How can I get to work with the latest version (5.0.0.1) it says:
=> Booting WEBrick
=> Rails 4.2.2 application starting in development on http://localhost:3000
=> Run `rails server -h` for more startup options
=> Ctrl-C to shutdown server
Exiting
/home/ubuntu/workspace/hellp_app/config/environments/development.rb:53:in `block in <top (required)>': uninitialized constant ActiveSupport::EventedFileUpdateChecker (NameError)
from /usr/local/rvm/gems/ruby-2.3.0/gems/railties-4.2.2/lib/rails/railtie.rb:210:in `instance_eval'
from /usr/local/rvm/gems/ruby-2.3.0/gems/railties-4.2.2/lib/rails/railtie.rb:210:in `configure'
from /home/ubuntu/workspace/hellp_app/config/environments/development.rb:1:in `<top (required)>'
from /usr/local/rvm/gems/ruby-2.3.0/gems/railties-4.2.2/lib/rails/engine.rb:598:in `block (2 levels) in <class:Engine>'
from /usr/local/rvm/gems/ruby-2.3.0/gems/railties-4.2.2/lib/rails/engine.rb:597:in `each'
from /usr/local/rvm/gems/ruby-2.3.0/gems/railties-4.2.2/lib/rails/engine.rb:597:in `block in <class:Engine>'
from /usr/local/rvm/gems/ruby-2.3.0/gems/railties-4.2.2/lib/rails/initializable.rb:30:in `instance_exec'
from /usr/local/rvm/gems/ruby-2.3.0/gems/railties-4.2.2/lib/rails/initializable.rb:30:in `run'
from /usr/local/rvm/gems/ruby-2.3.0/gems/railties-4.2.2/lib/rails/initializable.rb:55:in `block in run_initializers'
from /usr/local/rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/tsort.rb:228:in `block in tsort_each'
from /usr/local/rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/tsort.rb:350:in `block (2 levels) in each_strongly_connected_component'
from /usr/local/rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/tsort.rb:422:in `block (2 levels) in each_strongly_connected_component_from'
from /usr/local/rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/tsort.rb:431:in `each_strongly_connected_component_from'
from /usr/local/rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/tsort.rb:421:in `block in each_strongly_connected_component_from'
from /usr/local/rvm/gems/ruby-2.3.0/gems/railties-4.2.2/lib/rails/initializable.rb:44:in `each'
from /usr/local/rvm/gems/ruby-2.3.0/gems/railties-4.2.2/lib/rails/initializable.rb:44:in `tsort_each_child'
from /usr/local/rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/tsort.rb:415:in `call'
from /usr/local/rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/tsort.rb:415:in `each_strongly_connected_component_from'
from /usr/local/rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/tsort.rb:349:in `block in each_strongly_connected_component'
from /usr/local/rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/tsort.rb:347:in `each'
from /usr/local/rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/tsort.rb:347:in `call'
from /usr/local/rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/tsort.rb:347:in `each_strongly_connected_component'
from /usr/local/rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/tsort.rb:226:in `tsort_each'
from /usr/local/rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/tsort.rb:205:in `tsort_each'
from /usr/local/rvm/gems/ruby-2.3.0/gems/railties-4.2.2/lib/rails/initializable.rb:54:in `run_initializers'
from /usr/local/rvm/gems/ruby-2.3.0/gems/railties-4.2.2/lib/rails/application.rb:352:in `initialize!'
from /home/ubuntu/workspace/hellp_app/config/environment.rb:5:in `<top (required)>'
from /home/ubuntu/workspace/hellp_app/config.ru:3:in `require_relative'
from /home/ubuntu/workspace/hellp_app/config.ru:3:in `block in <main>'
from /usr/local/rvm/gems/ruby-2.3.0/gems/rack-1.6.4/lib/rack/builder.rb:55:in `instance_eval'
from /usr/local/rvm/gems/ruby-2.3.0/gems/rack-1.6.4/lib/rack/builder.rb:55:in `initialize'
from /home/ubuntu/workspace/hellp_app/config.ru:in `new'
from /home/ubuntu/workspace/hellp_app/config.ru:in `<main>'
from /usr/local/rvm/gems/ruby-2.3.0/gems/rack-1.6.4/lib/rack/builder.rb:49:in `eval'
from /usr/local/rvm/gems/ruby-2.3.0/gems/rack-1.6.4/lib/rack/builder.rb:49:in `new_from_string'
from /usr/local/rvm/gems/ruby-2.3.0/gems/rack-1.6.4/lib/rack/builder.rb:40:in `parse_file'
from /usr/local/rvm/gems/ruby-2.3.0/gems/rack-1.6.4/lib/rack/server.rb:299:in `build_app_and_options_from_config'
from /usr/local/rvm/gems/ruby-2.3.0/gems/rack-1.6.4/lib/rack/server.rb:208:in `app'
from /usr/local/rvm/gems/ruby-2.3.0/gems/railties-4.2.2/lib/rails/commands/server.rb:61:in `app'
from /usr/local/rvm/gems/ruby-2.3.0/gems/rack-1.6.4/lib/rack/server.rb:336:in `wrapped_app'
from /usr/local/rvm/gems/ruby-2.3.0/gems/railties-4.2.2/lib/rails/commands/server.rb:139:in `log_to_stdout'
from /usr/local/rvm/gems/ruby-2.3.0/gems/railties-4.2.2/lib/rails/commands/server.rb:78:in `start'
from /usr/local/rvm/gems/ruby-2.3.0/gems/railties-4.2.2/lib/rails/commands/commands_tasks.rb:80:in `block in server'
from /usr/local/rvm/gems/ruby-2.3.0/gems/railties-4.2.2/lib/rails/commands/commands_tasks.rb:75:in `tap'
from /usr/local/rvm/gems/ruby-2.3.0/gems/railties-4.2.2/lib/rails/commands/commands_tasks.rb:75:in `server'
from /usr/local/rvm/gems/ruby-2.3.0/gems/railties-4.2.2/lib/rails/commands/commands_tasks.rb:39:in `run_command!'
from /usr/local/rvm/gems/ruby-2.3.0/gems/railties-4.2.2/lib/rails/commands.rb:17:in `<top (required)>'
from /home/ubuntu/workspace/hellp_app/bin/rails:9:in `require'
from /home/ubuntu/workspace/hellp_app/bin/rails:9:in `<top (required)>'
from /usr/local/rvm/gems/ruby-2.3.0/gems/spring-1.1.3/lib/spring/client/rails.rb:27:in `load'
from /usr/local/rvm/gems/ruby-2.3.0/gems/spring-1.1.3/lib/spring/client/rails.rb:27:in `call'
from /usr/local/rvm/gems/ruby-2.3.0/gems/spring-1.1.3/lib/spring/client/command.rb:7:in `call'
from /usr/local/rvm/gems/ruby-2.3.0/gems/spring-1.1.3/lib/spring/client.rb:26:in `run'
from /usr/local/rvm/gems/ruby-2.3.0/gems/spring-1.1.3/bin/spring:48:in `<top (required)>'
from /usr/local/rvm/gems/ruby-2.3.0/gems/spring-1.1.3/lib/spring/binstub.rb:11:in `load'
from /usr/local/rvm/gems/ruby-2.3.0/gems/spring-1.1.3/lib/spring/binstub.rb:11:in `<top (required)>'
from /home/ubuntu/workspace/hellp_app/bin/spring:13:in `require'
from /home/ubuntu/workspace/hellp_app/bin/spring:13:in `<top (required)>'
from bin/rails:3:in `load'
from bin/rails:3:in `<main>'
In the gemfile you posted, the Rails version is incorrect:
gem 'rails', '4.2.2'
Since you are attempting to start version 5.0.0.1, you should update it accordingly in your gemfile, then run:
bundle install
to install dependendies for the newest version.

Updated Rails to 4.2.1 and now it won't run

I have no idea what's going on. I updated my rail to version 4.2.1 and now I can't generate a server. I run
$rails s
like normal and it starts up fine but then immediately exits. I've pasted the message below. Any ideas would be greatly appreciated
=> Booting WEBrick
=> Rails 4.2.1 application starting in development on http://localhost:3000
=> Run `rails server -h` for more startup options
=> Ctrl-C to shutdown server
Exiting
C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/tzinfo1.2.2/lib/tzinfo/data_source.rb:182:in `rescue in create_default_data_source': No source of timezone data could be found. (TZInfo::DataSourceNotFound)
Please refer to http://tzinfo.github.io/datasourcenotfound for help resolving this error.
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/tzinfo-1.2.2/lib/tzinfo/data_source.rb:179:in `create_default_data_source'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/tzinfo-1.2.2/lib/tzinfo/data_source.rb:40:in `block in get'
from <internal:prelude>:10:in `synchronize'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/tzinfo-1.2.2/lib/tzinfo/data_source.rb:39:in `get'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/tzinfo-1.2.2/lib/tzinfo/timezone.rb:629:in `data_source'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/tzinfo-1.2.2/lib/tzinfo/timezone.rb:92:in `get'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/tzinfo-1.2.2/lib/tzinfo/timezone_proxy.rb:67:in `real_timezone'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/tzinfo-1.2.2/lib/tzinfo/timezone_proxy.rb:30:in `period_for_utc'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/tzinfo-1.2.2/lib/tzinfo/timezone.rb:549:in `current_period'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activesupport-4.2.1/lib/active_support/values/time_zone.rb:282:in `utc_offset'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activesupport-4.2.1/lib/active_support/values/time_zone.rb:243:in `block in []'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activesupport-4.2.1/lib/active_support/values/time_zone.rb:243:in `tap'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activesupport-4.2.1/lib/active_support/values/time_zone.rb:243:in `[]'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activesupport-4.2.1/lib/active_support/core_ext/time/zones.rb:61:in `find_zone!'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activesupport-4.2.1/lib/active_support/railtie.rb:20:in `block in <class:Railtie>'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/railties-4.2.1/lib/rails/initializable.rb:30:in `instance_exec'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/railties-4.2.1/lib/rails/initializable.rb:30:in `run'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/railties-4.2.1/lib/rails/initializable.rb:55:in `block in run_initializers'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/1.9.1/tsort.rb:150:in `block in tsort_each'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/1.9.1/tsort.rb:183:in `block (2 levels) in each_strongly_connected_component'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/1.9.1/tsort.rb:219:in `each_strongly_connected_component_from'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/1.9.1/tsort.rb:182:in `block in each_strongly_connected_component'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/1.9.1/tsort.rb:180:in `each'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/1.9.1/tsort.rb:180:in `each_strongly_connected_component'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/1.9.1/tsort.rb:148:in `tsort_each'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/railties-4.2.1/lib/rails/initializable.rb:54:in `run_initializers'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/railties-4.2.1/lib/rails/application.rb:352:in `initialize!'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/railties-4.2.1/lib/rails/railtie.rb:194:in `public_send'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/railties-4.2.1/lib/rails/railtie.rb:194:in `method_missing'
from C:/Users/Scott/CustomerDatabase/config/environment.rb:5:in `<top (required)>'
from C:/Users/Scott/CustomerDatabase/config.ru:3:in `require'
from C:/Users/Scott/CustomerDatabase/config.ru:3:in `block in <main>'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/rack-1.6.1/lib/rack/builder.rb:55:in `instance_eval'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/rack-1.6.1/lib/rack/builder.rb:55:in `initialize'
from C:/Users/Scott/CustomerDatabase/config.ru:in `new'
from C:/Users/Scott/CustomerDatabase/config.ru:in `<main>'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/rack-1.6.1/lib/rack/builder.rb:49:in `eval'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/rack-1.6.1/lib/rack/builder.rb:49:in `new_from_string'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/rack-1.6.1/lib/rack/builder.rb:40:in `parse_file'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/rack-1.6.1/lib/rack/server.rb:299:in `build_app_and_options_from_config'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/rack-1.6.1/lib/rack/server.rb:208:in `app'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/railties-4.2.1/lib/rails/commands/server.rb:61:in `app'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/rack-1.6.1/lib/rack/server.rb:336:in `wrapped_app'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/railties-4.2.1/lib/rails/commands/server.rb:139:in `log_to_stdout'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/railties-4.2.1/lib/rails/commands/server.rb:78:in `start'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/railties-4.2.1/lib/rails/commands/commands_tasks.rb:80:in `block in server'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/railties-4.2.1/lib/rails/commands/commands_tasks.rb:75:in `tap'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/railties-4.2.1/lib/rails/commands/commands_tasks.rb:75:in `server'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/railties-4.2.1/lib/rails/commands/commands_tasks.rb:39:in `run_command!'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/railties-4.2.1/lib/rails/commands.rb:17:in `<top (required)>'
from bin/rails:4:in `require'
from bin/rails:4:in `<main>'

uninitialized constant ActionView::Helpers::ActionModeHelper

i'm a newer in ruby on rails, and after i install necessary tools to run my project in win7,it shows those error:
D:\SaaSProject>rails s
=> Booting WEBrick
=> Rails 4.2.0 application starting in development on http://localhost:3000
=> Run `rails server -h` for more startup options
=> Ctrl-C to shutdown server
Exiting
G:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/actionview-4.2.0/lib/action_view/helpers.
rb:40:in `<module:Helpers>': uninitialized constant ActionView::Helpers::ActiveM
odelHelper (NameError)
from G:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/actionview-4.2.0/lib/action_
view/helpers.rb:4:in `<module:ActionView>'
from G:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/actionview-4.2.0/lib/action_
view/helpers.rb:3:in `<top (required)>'
from G:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/actionview-4.2.0/lib/action_
view/base.rb:5:in `<top (required)>'
from G:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/actionview-4.2.0/lib/action_
view/view_paths.rb:1:in `<top (required)>'
from G:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/actionpack-4.2.0/lib/abstrac
t_controller/rendering.rb:4:in `<top (required)>'
from G:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/actionmailer-4.2.0/lib/actio
n_mailer/base.rb:423:in `<class:Base>'
from G:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/actionmailer-4.2.0/lib/actio
n_mailer/base.rb:417:in `<module:ActionMailer>'
from G:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/actionmailer-4.2.0/lib/actio
n_mailer/base.rb:9:in `<top (required)>'
from G:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/rspec-rails-3.2.1/lib/rspec-
rails.rb:29:in `block in <class:Railtie>'
from G:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/railties-4.2.0/lib/rails/ini
tializable.rb:30:in `instance_exec'
from G:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/railties-4.2.0/lib/rails/ini
tializable.rb:30:in `run'
from G:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/railties-4.2.0/lib/rails/ini
tializable.rb:55:in `block in run_initializers'
from G:/Ruby22-x64/lib/ruby/2.2.0/tsort.rb:226:in `block in tsort_each'
from G:/Ruby22-x64/lib/ruby/2.2.0/tsort.rb:348:in `block (2 levels) in e
ach_strongly_connected_component'
from G:/Ruby22-x64/lib/ruby/2.2.0/tsort.rb:420:in `block (2 levels) in e
ach_strongly_connected_component_from'
from G:/Ruby22-x64/lib/ruby/2.2.0/tsort.rb:429:in `each_strongly_connect
ed_component_from'
from G:/Ruby22-x64/lib/ruby/2.2.0/tsort.rb:419:in `block in each_strongl
y_connected_component_from'
from G:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/railties-4.2.0/lib/rails/ini
tializable.rb:44:in `each'
from G:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/railties-4.2.0/lib/rails/ini
tializable.rb:44:in `tsort_each_child'
from G:/Ruby22-x64/lib/ruby/2.2.0/tsort.rb:413:in `call'
from G:/Ruby22-x64/lib/ruby/2.2.0/tsort.rb:413:in `each_strongly_connect
ed_component_from'
from G:/Ruby22-x64/lib/ruby/2.2.0/tsort.rb:347:in `block in each_strongl
y_connected_component'
from G:/Ruby22-x64/lib/ruby/2.2.0/tsort.rb:345:in `each'
from G:/Ruby22-x64/lib/ruby/2.2.0/tsort.rb:345:in `call'
from G:/Ruby22-x64/lib/ruby/2.2.0/tsort.rb:345:in `each_strongly_connect
ed_component'
from G:/Ruby22-x64/lib/ruby/2.2.0/tsort.rb:224:in `tsort_each'
from G:/Ruby22-x64/lib/ruby/2.2.0/tsort.rb:203:in `tsort_each'
from G:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/railties-4.2.0/lib/rails/ini
tializable.rb:54:in `run_initializers'
from G:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/railties-4.2.0/lib/rails/app
lication.rb:352:in `initialize!'
from D:/SaaSProject/config/environment.rb:5:in `<top (required)>'
from D:/SaaSProject/config.ru:3:in `block in <main>'
from G:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/rack-1.6.0/lib/rack/builder.
rb:55:in `instance_eval'
from G:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/rack-1.6.0/lib/rack/builder.
rb:55:in `initialize'
from D:/SaaSProject/config.ru:in `new'
from D:/SaaSProject/config.ru:in `<main>'
from G:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/rack-1.6.0/lib/rack/builder.
rb:49:in `eval'
from G:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/rack-1.6.0/lib/rack/builder.
rb:49:in `new_from_string'
from G:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/rack-1.6.0/lib/rack/builder.
rb:40:in `parse_file'
from G:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/rack-1.6.0/lib/rack/server.r
b:299:in `build_app_and_options_from_config'
from G:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/rack-1.6.0/lib/rack/server.r
b:208:in `app'
from G:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/railties-4.2.0/lib/rails/com
mands/server.rb:61:in `app'
from G:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/rack-1.6.0/lib/rack/server.r
b:336:in `wrapped_app'
from G:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/railties-4.2.0/lib/rails/com
mands/server.rb:139:in `log_to_stdout'
from G:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/railties-4.2.0/lib/rails/com
mands/server.rb:78:in `start'
from G:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/railties-4.2.0/lib/rails/com
mands/commands_tasks.rb:80:in `block in server'
from G:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/railties-4.2.0/lib/rails/com
mands/commands_tasks.rb:75:in `tap'
from G:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/railties-4.2.0/lib/rails/com
mands/commands_tasks.rb:75:in `server'
from G:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/railties-4.2.0/lib/rails/com
mands/commands_tasks.rb:39:in `run_command!'
from G:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/railties-4.2.0/lib/rails/com
mands.rb:17:in `<top (required)>'
from bin/rails:8:in `require'
from bin/rails:8:in `<main>'
when i check the problem, in line 40 it shows include ActiveModelHelper . can you guys help me fix this problem? i'm really appreciate for it.

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