Ruby AWS SDK breaks when caching classes - ruby-on-rails

I'm having a headache trying to figure this out.
Everytime i try to deploy my app into productio i get this error:
/Users/Rafael/.rvm/gems/ruby-1.9.3-p429/gems/aws-sdk-1.3.9/lib/aws/core/service_interface.rb:24:in `module_eval': undefined method `each' for nil:NilClass (NoMethodError)
from /Users/Rafael/.rvm/gems/ruby-1.9.3-p429/gems/aws-sdk-1.3.9/lib/aws/simple_email_service/client/xml.rb:29:in `<module:XML>'
from /Users/Rafael/.rvm/gems/ruby-1.9.3-p429/gems/aws-sdk-1.3.9/lib/aws/simple_email_service/client/xml.rb:19:in `<class:Client>'
from /Users/Rafael/.rvm/gems/ruby-1.9.3-p429/gems/aws-sdk-1.3.9/lib/aws/simple_email_service/client/xml.rb:16:in `<class:SimpleEmailService>'
from /Users/Rafael/.rvm/gems/ruby-1.9.3-p429/gems/aws-sdk-1.3.9/lib/aws/simple_email_service/client/xml.rb:15:in `<module:AWS>'
from /Users/Rafael/.rvm/gems/ruby-1.9.3-p429/gems/aws-sdk-1.3.9/lib/aws/simple_email_service/client/xml.rb:14:in `<top (required)>'
from (eval):1:in `configure_client'
from /Users/Rafael/.rvm/gems/ruby-1.9.3-p429/gems/aws-sdk-1.3.9/lib/aws/core/client.rb:484:in `module_eval'
from /Users/Rafael/.rvm/gems/ruby-1.9.3-p429/gems/aws-sdk-1.3.9/lib/aws/core/client.rb:484:in `configure_client'
from /Users/Rafael/.rvm/gems/ruby-1.9.3-p429/gems/aws-sdk-1.3.9/lib/aws/core/configured_client_methods.rb:27:in `configure_client'
from /Users/Rafael/.rvm/gems/ruby-1.9.3-p429/gems/aws-sdk-1.3.9/lib/aws/simple_email_service/client.rb:32:in `<class:Client>'
from /Users/Rafael/.rvm/gems/ruby-1.9.3-p429/gems/aws-sdk-1.3.9/lib/aws/simple_email_service/client.rb:18:in `<class:SimpleEmailService>'
from /Users/Rafael/.rvm/gems/ruby-1.9.3-p429/gems/aws-sdk-1.3.9/lib/aws/simple_email_service/client.rb:15:in `<module:AWS>'
from /Users/Rafael/.rvm/gems/ruby-1.9.3-p429/gems/aws-sdk-1.3.9/lib/aws/simple_email_service/client.rb:14:in `<top (required)>'
from /Users/Rafael/.rvm/gems/ruby-1.9.3-p429/gems/aws-sdk-1.3.9/lib/aws/simple_email_service/errors.rb:20:in `<module:Errors>'
from /Users/Rafael/.rvm/gems/ruby-1.9.3-p429/gems/aws-sdk-1.3.9/lib/aws/simple_email_service/errors.rb:18:in `<class:SimpleEmailService>'
from /Users/Rafael/.rvm/gems/ruby-1.9.3-p429/gems/aws-sdk-1.3.9/lib/aws/simple_email_service/errors.rb:15:in `<module:AWS>'
from /Users/Rafael/.rvm/gems/ruby-1.9.3-p429/gems/aws-sdk-1.3.9/lib/aws/simple_email_service/errors.rb:14:in `<top (required)>'
from (eval):1:in `included'
from /Users/Rafael/.rvm/gems/ruby-1.9.3-p429/gems/aws-sdk-1.3.9/lib/aws/core/service_interface.rb:24:in `module_eval'
from /Users/Rafael/.rvm/gems/ruby-1.9.3-p429/gems/aws-sdk-1.3.9/lib/aws/core/service_interface.rb:24:in `included'
from /Users/Rafael/.rvm/gems/ruby-1.9.3-p429/gems/aws-sdk-1.3.9/lib/aws/simple_email_service.rb:146:in `include'
from /Users/Rafael/.rvm/gems/ruby-1.9.3-p429/gems/aws-sdk-1.3.9/lib/aws/simple_email_service.rb:146:in `<class:SimpleEmailService>'
from /Users/Rafael/.rvm/gems/ruby-1.9.3-p429/gems/aws-sdk-1.3.9/lib/aws/simple_email_service.rb:136:in `<module:AWS>'
from /Users/Rafael/.rvm/gems/ruby-1.9.3-p429/gems/aws-sdk-1.3.9/lib/aws/simple_email_service.rb:17:in `<top (required)>'
from /Users/Rafael/.rvm/gems/ruby-1.9.3-p429/gems/aws-sdk-1.3.9/lib/aws/rails.rb:157:in `block in add_action_mailer_delivery_method'
from /Users/Rafael/.rvm/gems/ruby-1.9.3-p429/gems/activesupport-3.2.13/lib/active_support/lazy_load_hooks.rb:36:in `instance_eval'
from /Users/Rafael/.rvm/gems/ruby-1.9.3-p429/gems/activesupport-3.2.13/lib/active_support/lazy_load_hooks.rb:36:in `execute_hook'
from /Users/Rafael/.rvm/gems/ruby-1.9.3-p429/gems/activesupport-3.2.13/lib/active_support/lazy_load_hooks.rb:43:in `block in run_load_hooks'
from /Users/Rafael/.rvm/gems/ruby-1.9.3-p429/gems/activesupport-3.2.13/lib/active_support/lazy_load_hooks.rb:42:in `each'
from /Users/Rafael/.rvm/gems/ruby-1.9.3-p429/gems/activesupport-3.2.13/lib/active_support/lazy_load_hooks.rb:42:in `run_load_hooks'
from /Users/Rafael/.rvm/gems/ruby-1.9.3-p429/gems/actionmailer-3.2.13/lib/action_mailer/base.rb:746:in `<class:Base>'
from /Users/Rafael/.rvm/gems/ruby-1.9.3-p429/gems/actionmailer-3.2.13/lib/action_mailer/base.rb:326:in `<module:ActionMailer>'
from /Users/Rafael/.rvm/gems/ruby-1.9.3-p429/gems/actionmailer-3.2.13/lib/action_mailer/base.rb:11:in `<top (required)>'
from /Users/Rafael/.rvm/gems/ruby-1.9.3-p429/gems/activesupport-3.2.13/lib/active_support/inflector/methods.rb:230:in `const_get'
from /Users/Rafael/.rvm/gems/ruby-1.9.3-p429/gems/activesupport-3.2.13/lib/active_support/inflector/methods.rb:230:in `block in constantize'
from /Users/Rafael/.rvm/gems/ruby-1.9.3-p429/gems/activesupport-3.2.13/lib/active_support/inflector/methods.rb:229:in `each'
from /Users/Rafael/.rvm/gems/ruby-1.9.3-p429/gems/activesupport-3.2.13/lib/active_support/inflector/methods.rb:229:in `constantize'
from /Users/Rafael/.rvm/gems/ruby-1.9.3-p429/gems/activesupport-3.2.13/lib/active_support/core_ext/string/inflections.rb:54:in `constantize'
from /Users/Rafael/.rvm/gems/ruby-1.9.3-p429/gems/devise-3.0.0/app/mailers/devise/mailer.rb:1:in `<top (required)>'
from /Users/Rafael/.rvm/gems/ruby-1.9.3-p429/gems/activesupport-3.2.13/lib/active_support/dependencies.rb:251:in `require'
from /Users/Rafael/.rvm/gems/ruby-1.9.3-p429/gems/activesupport-3.2.13/lib/active_support/dependencies.rb:251:in `block in require'
from /Users/Rafael/.rvm/gems/ruby-1.9.3-p429/gems/activesupport-3.2.13/lib/active_support/dependencies.rb:236:in `load_dependency'
from /Users/Rafael/.rvm/gems/ruby-1.9.3-p429/gems/activesupport-3.2.13/lib/active_support/dependencies.rb:251:in `require'
from /Users/Rafael/.rvm/gems/ruby-1.9.3-p429/gems/activesupport-3.2.13/lib/active_support/dependencies.rb:359:in `require_or_load'
from /Users/Rafael/.rvm/gems/ruby-1.9.3-p429/gems/activesupport-3.2.13/lib/active_support/dependencies.rb:313:in `depend_on'
from /Users/Rafael/.rvm/gems/ruby-1.9.3-p429/gems/activesupport-3.2.13/lib/active_support/dependencies.rb:225:in `require_dependency'
from /Users/Rafael/.rvm/gems/ruby-1.9.3-p429/gems/railties-3.2.13/lib/rails/engine.rb:439:in `block (2 levels) in eager_load!'
from /Users/Rafael/.rvm/gems/ruby-1.9.3-p429/gems/railties-3.2.13/lib/rails/engine.rb:438:in `each'
from /Users/Rafael/.rvm/gems/ruby-1.9.3-p429/gems/railties-3.2.13/lib/rails/engine.rb:438:in `block in eager_load!'
from /Users/Rafael/.rvm/gems/ruby-1.9.3-p429/gems/railties-3.2.13/lib/rails/engine.rb:436:in `each'
from /Users/Rafael/.rvm/gems/ruby-1.9.3-p429/gems/railties-3.2.13/lib/rails/engine.rb:436:in `eager_load!'
from /Users/Rafael/.rvm/gems/ruby-1.9.3-p429/gems/railties-3.2.13/lib/rails/application/railties.rb:8:in `each'
from /Users/Rafael/.rvm/gems/ruby-1.9.3-p429/gems/railties-3.2.13/lib/rails/application/railties.rb:8:in `all'
from /Users/Rafael/.rvm/gems/ruby-1.9.3-p429/gems/railties-3.2.13/lib/rails/engine.rb:434:in `eager_load!'
from /Users/Rafael/.rvm/gems/ruby-1.9.3-p429/gems/railties-3.2.13/lib/rails/application/finisher.rb:53:in `block in <module:Finisher>'
from /Users/Rafael/.rvm/gems/ruby-1.9.3-p429/gems/railties-3.2.13/lib/rails/initializable.rb:30:in `instance_exec'
from /Users/Rafael/.rvm/gems/ruby-1.9.3-p429/gems/railties-3.2.13/lib/rails/initializable.rb:30:in `run'
from /Users/Rafael/.rvm/gems/ruby-1.9.3-p429/gems/railties-3.2.13/lib/rails/initializable.rb:55:in `block in run_initializers'
from /Users/Rafael/.rvm/gems/ruby-1.9.3-p429/gems/railties-3.2.13/lib/rails/initializable.rb:54:in `each'
from /Users/Rafael/.rvm/gems/ruby-1.9.3-p429/gems/railties-3.2.13/lib/rails/initializable.rb:54:in `run_initializers'
from /Users/Rafael/.rvm/gems/ruby-1.9.3-p429/gems/railties-3.2.13/lib/rails/application.rb:136:in `initialize!'
from /Users/Rafael/.rvm/gems/ruby-1.9.3-p429/gems/railties-3.2.13/lib/rails/railtie/configurable.rb:30:in `method_missing'
from /Users/Rafael/Dev/Nuveo/StoresEngine/config/environment.rb:5:in `<top (required)>'
from /Users/Rafael/.rvm/gems/ruby-1.9.3-p429/gems/activesupport-3.2.13/lib/active_support/dependencies.rb:251:in `require'
from /Users/Rafael/.rvm/gems/ruby-1.9.3-p429/gems/activesupport-3.2.13/lib/active_support/dependencies.rb:251:in `block in require'
from /Users/Rafael/.rvm/gems/ruby-1.9.3-p429/gems/activesupport-3.2.13/lib/active_support/dependencies.rb:236:in `load_dependency'
from /Users/Rafael/.rvm/gems/ruby-1.9.3-p429/gems/activesupport-3.2.13/lib/active_support/dependencies.rb:251:in `require'
from /Users/Rafael/Dev/Nuveo/StoresEngine/config.ru:3:in `block in <main>'
from /Users/Rafael/.rvm/gems/ruby-1.9.3-p429/gems/rack-1.4.5/lib/rack/builder.rb:51:in `instance_eval'
from /Users/Rafael/.rvm/gems/ruby-1.9.3-p429/gems/rack-1.4.5/lib/rack/builder.rb:51:in `initialize'
from /Users/Rafael/Dev/Nuveo/StoresEngine/config.ru:in `new'
from /Users/Rafael/Dev/Nuveo/StoresEngine/config.ru:in `<main>'
from /Users/Rafael/.rvm/gems/ruby-1.9.3-p429/gems/rack-1.4.5/lib/rack/builder.rb:40:in `eval'
from /Users/Rafael/.rvm/gems/ruby-1.9.3-p429/gems/rack-1.4.5/lib/rack/builder.rb:40:in `parse_file'
from /Users/Rafael/.rvm/gems/ruby-1.9.3-p429/gems/rack-1.4.5/lib/rack/server.rb:200:in `app'
from /Users/Rafael/.rvm/gems/ruby-1.9.3-p429/gems/railties-3.2.13/lib/rails/commands/server.rb:46:in `app'
from /Users/Rafael/.rvm/gems/ruby-1.9.3-p429/gems/rack-1.4.5/lib/rack/server.rb:304:in `wrapped_app'
from /Users/Rafael/.rvm/gems/ruby-1.9.3-p429/gems/rack-1.4.5/lib/rack/server.rb:254:in `start'
from /Users/Rafael/.rvm/gems/ruby-1.9.3-p429/gems/railties-3.2.13/lib/rails/commands/server.rb:70:in `start'
from /Users/Rafael/.rvm/gems/ruby-1.9.3-p429/gems/railties-3.2.13/lib/rails/commands.rb:55:in `block in <top (required)>'
from /Users/Rafael/.rvm/gems/ruby-1.9.3-p429/gems/railties-3.2.13/lib/rails/commands.rb:50:in `tap'
from /Users/Rafael/.rvm/gems/ruby-1.9.3-p429/gems/railties-3.2.13/lib/rails/commands.rb:50:in `<top (required)>'
from script/rails:6:in `require'
from script/rails:6:in `<main>'
But if i disable the config.cache_classes setting it to false, the error wont show up anymore.
But there is no way that im leaving cache_classes = false into production.
Can someone help me with this?
Many thanks

The AWS SDK was out of date.
Updating it solved the hole trouble :)
Thanks Deefour

Related

Rails: Couldn't load the Unicode tables for UTF8Handler

I'm on a fresh Ubuntu 17.10 machine, Ruby 2.2.3 installed with RVM, and I'm trying to run a Rails 4.2 application.
After rails s command I get:
davide#davidell:~/app/app-backend$ rails s
Array values in the parameter to `Gem.paths=` are deprecated.
Please use a String or nil.
An Array ({"GEM_PATH"=>["/home/davide/.rvm/gems/ruby-2.2.3#app", "/home/davide/.rvm/gems/ruby-2.2.3#global"]}) was passed in from bin/rails:3:in `load'
=> Booting Puma
=> Rails 4.2.4 application starting in development on http://localhost:3000
=> Run `rails server -h` for more startup options
=> Ctrl-C to shutdown server
Exiting
/home/davide/.rvm/gems/ruby-2.2.3#app/gems/activesupport-4.2.4/lib/active_support/multibyte/unicode.rb:338:in `rescue in load': Couldn't load the Unicode tables for UTF8Handler (undefined method `getbyte' for false:FalseClass), ActiveSupport::Multibyte is unusable (IOError)
from /home/davide/.rvm/gems/ruby-2.2.3#app/gems/activesupport-4.2.4/lib/active_support/multibyte/unicode.rb:335:in `load'
from /home/davide/.rvm/gems/ruby-2.2.3#app/gems/activesupport-4.2.4/lib/active_support/multibyte/unicode.rb:326:in `codepoints'
from /home/davide/.rvm/gems/ruby-2.2.3#app/gems/activesupport-4.2.4/lib/active_support/multibyte/unicode.rb:147:in `block in decompose'
from /home/davide/.rvm/gems/ruby-2.2.3#app/gems/activesupport-4.2.4/lib/active_support/multibyte/unicode.rb:136:in `each'
from /home/davide/.rvm/gems/ruby-2.2.3#app/gems/activesupport-4.2.4/lib/active_support/multibyte/unicode.rb:136:in `inject'
from /home/davide/.rvm/gems/ruby-2.2.3#app/gems/activesupport-4.2.4/lib/active_support/multibyte/unicode.rb:136:in `decompose'
from /home/davide/.rvm/gems/ruby-2.2.3#app/gems/activesupport-4.2.4/lib/active_support/multibyte/unicode.rb:270:in `normalize'
from /home/davide/.rvm/gems/ruby-2.2.3#app/gems/activesupport-4.2.4/lib/active_support/inflector/transliterate.rb:62:in `transliterate'
from /home/davide/.rvm/gems/ruby-2.2.3#app/gems/activesupport-4.2.4/lib/active_support/inflector/transliterate.rb:83:in `parameterize'
from /home/davide/.rvm/gems/ruby-2.2.3#app/gems/activesupport-4.2.4/lib/active_support/core_ext/string/inflections.rb:168:in `parameterize'
from /home/davide/.rvm/gems/ruby-2.2.3#app/bundler/gems/activeadmin-893b46c6530c/lib/active_admin/scope.rb:35:in `initialize'
from /home/davide/.rvm/gems/ruby-2.2.3#app/bundler/gems/activeadmin-893b46c6530c/lib/active_admin/resource/scopes.rb:34:in `new'
from /home/davide/.rvm/gems/ruby-2.2.3#app/bundler/gems/activeadmin-893b46c6530c/lib/active_admin/resource/scopes.rb:34:in `scope'
from /home/davide/.rvm/gems/ruby-2.2.3#app/bundler/gems/activeadmin-893b46c6530c/lib/active_admin/resource_dsl.rb:22:in `scope'
from /home/davide/app/app-backend/app/admin/venue.rb:28:in `block in <top (required)>'
from /home/davide/.rvm/gems/ruby-2.2.3#app/bundler/gems/activeadmin-893b46c6530c/lib/active_admin/dsl.rb:15:in `instance_exec'
from /home/davide/.rvm/gems/ruby-2.2.3#app/bundler/gems/activeadmin-893b46c6530c/lib/active_admin/dsl.rb:15:in `run_registration_block'
from /home/davide/.rvm/gems/ruby-2.2.3#app/bundler/gems/activeadmin-893b46c6530c/lib/active_admin/namespace.rb:223:in `parse_registration_block'
from /home/davide/.rvm/gems/ruby-2.2.3#app/bundler/gems/activeadmin-893b46c6530c/lib/active_admin/namespace.rb:48:in `register'
from /home/davide/.rvm/gems/ruby-2.2.3#app/bundler/gems/activeadmin-893b46c6530c/lib/active_admin/application.rb:151:in `register'
from /home/davide/.rvm/gems/ruby-2.2.3#app/bundler/gems/activeadmin-893b46c6530c/lib/active_admin.rb:75:in `register'
from /home/davide/app/app-backend/app/admin/venue.rb:1:in `<top (required)>'
from /home/davide/.rvm/gems/ruby-2.2.3#app/gems/activesupport-4.2.4/lib/active_support/dependencies.rb:268:in `load'
from /home/davide/.rvm/gems/ruby-2.2.3#app/gems/activesupport-4.2.4/lib/active_support/dependencies.rb:268:in `block in load'
from /home/davide/.rvm/gems/ruby-2.2.3#app/gems/activesupport-4.2.4/lib/active_support/dependencies.rb:240:in `load_dependency'
from /home/davide/.rvm/gems/ruby-2.2.3#app/gems/activesupport-4.2.4/lib/active_support/dependencies.rb:268:in `load'
from /home/davide/.rvm/gems/ruby-2.2.3#app/bundler/gems/activeadmin-893b46c6530c/lib/active_admin/application.rb:209:in `block in load'
from /home/davide/.rvm/gems/ruby-2.2.3#app/bundler/gems/activeadmin-893b46c6530c/lib/active_admin/error.rb:41:in `capture'
from /home/davide/.rvm/gems/ruby-2.2.3#app/bundler/gems/activeadmin-893b46c6530c/lib/active_admin/application.rb:209:in `load'
from /home/davide/.rvm/gems/ruby-2.2.3#app/bundler/gems/activeadmin-893b46c6530c/lib/active_admin/application.rb:201:in `block in load!'
from /home/davide/.rvm/gems/ruby-2.2.3#app/bundler/gems/activeadmin-893b46c6530c/lib/active_admin/application.rb:201:in `each'
from /home/davide/.rvm/gems/ruby-2.2.3#app/bundler/gems/activeadmin-893b46c6530c/lib/active_admin/application.rb:201:in `load!'
from /home/davide/.rvm/gems/ruby-2.2.3#app/bundler/gems/activeadmin-893b46c6530c/lib/active_admin/application.rb:223:in `routes'
from /home/davide/.rvm/gems/ruby-2.2.3#app/bundler/gems/activeadmin-893b46c6530c/lib/active_admin.rb:79:in `routes'
from /home/davide/app/app-backend/config/routes.rb:320:in `block (2 levels) in <top (required)>'
from /home/davide/.rvm/gems/ruby-2.2.3#app/gems/actionpack-4.2.4/lib/action_dispatch/routing/mapper.rb:940:in `block in constraints'
from /home/davide/.rvm/gems/ruby-2.2.3#app/gems/actionpack-4.2.4/lib/action_dispatch/routing/mapper.rb:816:in `scope'
from /home/davide/.rvm/gems/ruby-2.2.3#app/gems/actionpack-4.2.4/lib/action_dispatch/routing/mapper.rb:940:in `constraints'
from /home/davide/app/app-backend/config/routes.rb:316:in `block in <top (required)>'
from /home/davide/.rvm/gems/ruby-2.2.3#app/gems/actionpack-4.2.4/lib/action_dispatch/routing/route_set.rb:434:in `instance_exec'
from /home/davide/.rvm/gems/ruby-2.2.3#app/gems/actionpack-4.2.4/lib/action_dispatch/routing/route_set.rb:434:in `eval_block'
from /home/davide/.rvm/gems/ruby-2.2.3#app/gems/actionpack-4.2.4/lib/action_dispatch/routing/route_set.rb:412:in `draw'
from /home/davide/app/app-backend/config/routes.rb:1:in `<top (required)>'
from /home/davide/.rvm/gems/ruby-2.2.3#app/gems/activesupport-4.2.4/lib/active_support/dependencies.rb:268:in `load'
from /home/davide/.rvm/gems/ruby-2.2.3#app/gems/activesupport-4.2.4/lib/active_support/dependencies.rb:268:in `block in load'
from /home/davide/.rvm/gems/ruby-2.2.3#app/gems/activesupport-4.2.4/lib/active_support/dependencies.rb:240:in `load_dependency'
from /home/davide/.rvm/gems/ruby-2.2.3#app/gems/activesupport-4.2.4/lib/active_support/dependencies.rb:268:in `load'
from /home/davide/.rvm/gems/ruby-2.2.3#app/gems/railties-4.2.4/lib/rails/application/routes_reloader.rb:40:in `block in load_paths'
from /home/davide/.rvm/gems/ruby-2.2.3#app/gems/railties-4.2.4/lib/rails/application/routes_reloader.rb:40:in `each'
from /home/davide/.rvm/gems/ruby-2.2.3#app/gems/railties-4.2.4/lib/rails/application/routes_reloader.rb:40:in `load_paths'
from /home/davide/.rvm/gems/ruby-2.2.3#app/gems/railties-4.2.4/lib/rails/application/routes_reloader.rb:16:in `reload!'
from /home/davide/.rvm/gems/ruby-2.2.3#app/gems/railties-4.2.4/lib/rails/application/routes_reloader.rb:26:in `block in updater'
from /home/davide/.rvm/gems/ruby-2.2.3#app/gems/activesupport-4.2.4/lib/active_support/file_update_checker.rb:75:in `call'
from /home/davide/.rvm/gems/ruby-2.2.3#app/gems/activesupport-4.2.4/lib/active_support/file_update_checker.rb:75:in `execute'
from /home/davide/.rvm/gems/ruby-2.2.3#app/gems/railties-4.2.4/lib/rails/application/routes_reloader.rb:27:in `updater'
from /home/davide/.rvm/gems/ruby-2.2.3#app/gems/railties-4.2.4/lib/rails/application/routes_reloader.rb:7:in `execute_if_updated'
from /home/davide/.rvm/gems/ruby-2.2.3#app/gems/railties-4.2.4/lib/rails/application/finisher.rb:69:in `block in <module:Finisher>'
from /home/davide/.rvm/gems/ruby-2.2.3#app/gems/railties-4.2.4/lib/rails/initializable.rb:30:in `instance_exec'
from /home/davide/.rvm/gems/ruby-2.2.3#app/gems/railties-4.2.4/lib/rails/initializable.rb:30:in `run'
from /home/davide/.rvm/gems/ruby-2.2.3#app/gems/railties-4.2.4/lib/rails/initializable.rb:55:in `block in run_initializers'
from /usr/share/rvm/rubies/ruby-2.2.3/lib/ruby/2.2.0/tsort.rb:226:in `block in tsort_each'
from /usr/share/rvm/rubies/ruby-2.2.3/lib/ruby/2.2.0/tsort.rb:348:in `block (2 levels) in each_strongly_connected_component'
from /usr/share/rvm/rubies/ruby-2.2.3/lib/ruby/2.2.0/tsort.rb:429:in `each_strongly_connected_component_from'
from /usr/share/rvm/rubies/ruby-2.2.3/lib/ruby/2.2.0/tsort.rb:347:in `block in each_strongly_connected_component'
from /usr/share/rvm/rubies/ruby-2.2.3/lib/ruby/2.2.0/tsort.rb:345:in `each'
from /usr/share/rvm/rubies/ruby-2.2.3/lib/ruby/2.2.0/tsort.rb:345:in `call'
from /usr/share/rvm/rubies/ruby-2.2.3/lib/ruby/2.2.0/tsort.rb:345:in `each_strongly_connected_component'
from /usr/share/rvm/rubies/ruby-2.2.3/lib/ruby/2.2.0/tsort.rb:224:in `tsort_each'
from /usr/share/rvm/rubies/ruby-2.2.3/lib/ruby/2.2.0/tsort.rb:203:in `tsort_each'
from /home/davide/.rvm/gems/ruby-2.2.3#app/gems/railties-4.2.4/lib/rails/initializable.rb:54:in `run_initializers'
from /home/davide/.rvm/gems/ruby-2.2.3#app/gems/railties-4.2.4/lib/rails/application.rb:352:in `initialize!'
from /home/davide/app/app-backend/config/environment.rb:5:in `<top (required)>'
from /home/davide/.rvm/gems/ruby-2.2.3#app/gems/activesupport-4.2.4/lib/active_support/dependencies.rb:274:in `require'
from /home/davide/.rvm/gems/ruby-2.2.3#app/gems/activesupport-4.2.4/lib/active_support/dependencies.rb:274:in `block in require'
from /home/davide/.rvm/gems/ruby-2.2.3#app/gems/activesupport-4.2.4/lib/active_support/dependencies.rb:240:in `load_dependency'
from /home/davide/.rvm/gems/ruby-2.2.3#app/gems/activesupport-4.2.4/lib/active_support/dependencies.rb:274:in `require'
from /home/davide/app/app-backend/config.ru:20:in `block in <main>'
from /home/davide/.rvm/gems/ruby-2.2.3#app/gems/rack-1.6.4/lib/rack/builder.rb:55:in `instance_eval'
from /home/davide/.rvm/gems/ruby-2.2.3#app/gems/rack-1.6.4/lib/rack/builder.rb:55:in `initialize'
from /home/davide/app/app-backend/config.ru:in `new'
from /home/davide/app/app-backend/config.ru:in `<main>'
from /home/davide/.rvm/gems/ruby-2.2.3#app/gems/rack-1.6.4/lib/rack/builder.rb:49:in `eval'
from /home/davide/.rvm/gems/ruby-2.2.3#app/gems/rack-1.6.4/lib/rack/builder.rb:49:in `new_from_string'
from /home/davide/.rvm/gems/ruby-2.2.3#app/gems/rack-1.6.4/lib/rack/builder.rb:40:in `parse_file'
from /home/davide/.rvm/gems/ruby-2.2.3#app/gems/rack-1.6.4/lib/rack/server.rb:299:in `build_app_and_options_from_config'
from /home/davide/.rvm/gems/ruby-2.2.3#app/gems/rack-1.6.4/lib/rack/server.rb:208:in `app'
from /home/davide/.rvm/gems/ruby-2.2.3#app/gems/railties-4.2.4/lib/rails/commands/server.rb:61:in `app'
from /home/davide/.rvm/gems/ruby-2.2.3#app/gems/rack-1.6.4/lib/rack/server.rb:336:in `wrapped_app'
from /home/davide/.rvm/gems/ruby-2.2.3#app/gems/railties-4.2.4/lib/rails/commands/server.rb:139:in `log_to_stdout'
from /home/davide/.rvm/gems/ruby-2.2.3#app/gems/railties-4.2.4/lib/rails/commands/server.rb:78:in `start'
from /home/davide/.rvm/gems/ruby-2.2.3#app/gems/railties-4.2.4/lib/rails/commands/commands_tasks.rb:80:in `block in server'
from /home/davide/.rvm/gems/ruby-2.2.3#app/gems/railties-4.2.4/lib/rails/commands/commands_tasks.rb:75:in `tap'
from /home/davide/.rvm/gems/ruby-2.2.3#app/gems/railties-4.2.4/lib/rails/commands/commands_tasks.rb:75:in `server'
from /home/davide/.rvm/gems/ruby-2.2.3#app/gems/railties-4.2.4/lib/rails/commands/commands_tasks.rb:39:in `run_command!'
from /home/davide/.rvm/gems/ruby-2.2.3#app/gems/railties-4.2.4/lib/rails/commands.rb:17:in `<top (required)>'
from /home/davide/app/app-backend/bin/rails:8:in `require'
from /home/davide/app/app-backend/bin/rails:8:in `<top (required)>'
from /home/davide/.rvm/gems/ruby-2.2.3#app/gems/spring-1.4.0/lib/spring/client/rails.rb:28:in `load'
from /home/davide/.rvm/gems/ruby-2.2.3#app/gems/spring-1.4.0/lib/spring/client/rails.rb:28:in `call'
from /home/davide/.rvm/gems/ruby-2.2.3#app/gems/spring-1.4.0/lib/spring/client/command.rb:7:in `call'
from /home/davide/.rvm/gems/ruby-2.2.3#app/gems/spring-1.4.0/lib/spring/client.rb:28:in `run'
from /home/davide/.rvm/gems/ruby-2.2.3#app/gems/spring-1.4.0/bin/spring:49:in `<top (required)>'
from /home/davide/.rvm/gems/ruby-2.2.3#app/gems/spring-1.4.0/lib/spring/binstub.rb:11:in `load'
from /home/davide/.rvm/gems/ruby-2.2.3#app/gems/spring-1.4.0/lib/spring/binstub.rb:11:in `<top (required)>'
from /home/davide/app/app-backend/bin/spring:13:in `require'
from /home/davide/app/app-backend/bin/spring:13:in `<top (required)>'
from bin/rails:3:in `load'
from bin/rails:3:in `<main>'
After several rails s tries, it works, but it's a totally random number of trials. If I stop the application, the same error occurs, and after several other tries, it works. So random.
Now I got:
[NOTE]
You may have encountered a bug in the Ruby interpreter or extension libraries.
Bug reports are welcome.
For details: http://www.ruby-lang.org/bugreport.html

Rails - undefined method `cattr_accessor' for Log4r:Module

I am trying to connect the Log4r with the silence logger from active support with
Log4r.send :include,
ActiveRecord::SessionStore::Extension::LoggerSilencer
But now I get this error if I try to start the server :
I tried it with
require 'active_support/all'
in my session_store.rb and log4r.rb, but always get the same error. Anyone with an idea how to fix this ?
C:/Ruby200/lib/ruby/gems/2.0.0/gems/activerecord-session_store-1.0.0/lib/active_record/session_store/extension/logger_silencer.rb:16:in `block in <module:LoggerSilencer>': undefined method `cattr_accessor' for Log4r:Module (NoMethodError)
from C:/Ruby200/lib/ruby/gems/2.0.0/gems/activesupport-4.0.13/lib/active_support/concern.rb:114:in `class_eval'
from C:/Ruby200/lib/ruby/gems/2.0.0/gems/activesupport-4.0.13/lib/active_support/concern.rb:114:in `append_features'
from C:/SVN/FOS/branches/FOS_5_0/config/initializers/session_store.rb:4:in `include'
from C:/SVN/FOS/branches/FOS_5_0/config/initializers/session_store.rb:4:in `<top (required)>'
from C:/Ruby200/lib/ruby/gems/2.0.0/gems/activesupport-4.0.13/lib/active_support/dependencies.rb:223:in `load'
from C:/Ruby200/lib/ruby/gems/2.0.0/gems/activesupport-4.0.13/lib/active_support/dependencies.rb:223:in `block in load'
from C:/Ruby200/lib/ruby/gems/2.0.0/gems/activesupport-4.0.13/lib/active_support/dependencies.rb:214:in `load_dependency'
from C:/Ruby200/lib/ruby/gems/2.0.0/gems/activesupport-4.0.13/lib/active_support/dependencies.rb:223:in `load'
from C:/Ruby200/lib/ruby/gems/2.0.0/gems/railties-4.0.13/lib/rails/engine.rb:609:in `block (2 levels) in <class:Engine>'
from C:/Ruby200/lib/ruby/gems/2.0.0/gems/railties-4.0.13/lib/rails/engine.rb:608:in `each'
from C:/Ruby200/lib/ruby/gems/2.0.0/gems/railties-4.0.13/lib/rails/engine.rb:608:in `block in <class:Engine>'
from C:/Ruby200/lib/ruby/gems/2.0.0/gems/railties-4.0.13/lib/rails/initializable.rb:30:in `instance_exec'
from C:/Ruby200/lib/ruby/gems/2.0.0/gems/railties-4.0.13/lib/rails/initializable.rb:30:in `run'
from C:/Ruby200/lib/ruby/gems/2.0.0/gems/railties-4.0.13/lib/rails/initializable.rb:55:in `block in run_initializers'
from C:/Ruby200/lib/ruby/2.0.0/tsort.rb:150:in `block in tsort_each'
from C:/Ruby200/lib/ruby/2.0.0/tsort.rb:183:in `block (2 levels) in each_strongly_connected_component'
from C:/Ruby200/lib/ruby/2.0.0/tsort.rb:210:in `block (2 levels) in each_strongly_connected_component_from'
from C:/Ruby200/lib/ruby/2.0.0/tsort.rb:219:in `each_strongly_connected_component_from'
from C:/Ruby200/lib/ruby/2.0.0/tsort.rb:209:in `block in each_strongly_connected_component_from'
from C:/Ruby200/lib/ruby/gems/2.0.0/gems/railties-4.0.13/lib/rails/initializable.rb:44:in `each'
from C:/Ruby200/lib/ruby/gems/2.0.0/gems/railties-4.0.13/lib/rails/initializable.rb:44:in `tsort_each_child'
from C:/Ruby200/lib/ruby/2.0.0/tsort.rb:203:in `each_strongly_connected_component_from'
from C:/Ruby200/lib/ruby/2.0.0/tsort.rb:182:in `block in each_strongly_connected_component'
from C:/Ruby200/lib/ruby/2.0.0/tsort.rb:180:in `each'
from C:/Ruby200/lib/ruby/2.0.0/tsort.rb:180:in `each_strongly_connected_component'
from C:/Ruby200/lib/ruby/2.0.0/tsort.rb:148:in `tsort_each'
from C:/Ruby200/lib/ruby/gems/2.0.0/gems/railties-4.0.13/lib/rails/initializable.rb:54:in `run_initializers'
from C:/Ruby200/lib/ruby/gems/2.0.0/gems/railties-4.0.13/lib/rails/application.rb:215:in `initialize!'
from C:/Ruby200/lib/ruby/gems/2.0.0/gems/railties-4.0.13/lib/rails/railtie/configurable.rb:30:in `method_missing'
from C:/SVN/FOS/branches/FOS_5_0/config/environment.rb:7:in `<top (required)>'
from C:/Ruby200/lib/ruby/gems/2.0.0/gems/activesupport-4.0.13/lib/active_support/dependencies.rb:229:in `require'
from C:/Ruby200/lib/ruby/gems/2.0.0/gems/activesupport-4.0.13/lib/active_support/dependencies.rb:229:in `block in require'
from C:/Ruby200/lib/ruby/gems/2.0.0/gems/activesupport-4.0.13/lib/active_support/dependencies.rb:214:in `load_dependency'
from C:/Ruby200/lib/ruby/gems/2.0.0/gems/activesupport-4.0.13/lib/active_support/dependencies.rb:229:in `require'
from C:/SVN/FOS/branches/FOS_5_0/config.ru:3:in `block in <main>'
from C:/Ruby200/lib/ruby/gems/2.0.0/gems/rack-1.5.5/lib/rack/builder.rb:55:in `instance_eval'
from C:/Ruby200/lib/ruby/gems/2.0.0/gems/rack-1.5.5/lib/rack/builder.rb:55:in `initialize'
from C:/SVN/FOS/branches/FOS_5_0/config.ru:in `new'
from C:/SVN/FOS/branches/FOS_5_0/config.ru:in `<main>'
from C:/Ruby200/lib/ruby/gems/2.0.0/gems/rack-1.5.5/lib/rack/builder.rb:49:in `eval'
from C:/Ruby200/lib/ruby/gems/2.0.0/gems/rack-1.5.5/lib/rack/builder.rb:49:in `new_from_string'
from C:/Ruby200/lib/ruby/gems/2.0.0/gems/rack-1.5.5/lib/rack/builder.rb:40:in `parse_file'
from C:/Ruby200/lib/ruby/gems/2.0.0/gems/rack-1.5.5/lib/rack/server.rb:277:in `build_app_and_options_from_config'
from C:/Ruby200/lib/ruby/gems/2.0.0/gems/rack-1.5.5/lib/rack/server.rb:199:in `app'
from C:/Ruby200/lib/ruby/gems/2.0.0/gems/railties-4.0.13/lib/rails/commands/server.rb:48:in `app'
from C:/Ruby200/lib/ruby/gems/2.0.0/gems/rack-1.5.5/lib/rack/server.rb:314:in `wrapped_app'
from C:/Ruby200/lib/ruby/gems/2.0.0/gems/railties-4.0.13/lib/rails/commands/server.rb:75:in `start'
from C:/Ruby200/lib/ruby/gems/2.0.0/gems/railties-4.0.13/lib/rails/commands.rb:76:in `block in <top (required)>'
from C:/Ruby200/lib/ruby/gems/2.0.0/gems/railties-4.0.13/lib/rails/commands.rb:71:in `tap'
from C:/Ruby200/lib/ruby/gems/2.0.0/gems/railties-4.0.13/lib/rails/commands.rb:71:in `<top (required)>'
from script/rails:6:in `require'
from script/rails:6:in `<main>'
cattr_accessor should be attr_accessor in the logger_silencer.rb file on line 16. Im pretty sure thats it, let use know if it's not.
Solution:
I update my Log4r because the old version I use was not compatible with the new rails. Now it works.

uninitialized constant Omrails

When I execute rails s the server won't open and I receive the following error:
Users/thomaspouliquen/whereisthepolice/config/routes.rb:2:in `<top (required)>': uninitialized constant Omrails (NameError)
from /usr/local/rvm/gems/ruby-1.9.3-p392/gems/railties-3.2.12/lib/rails/application/routes_reloader.rb:40:in `block in load_paths'
from /usr/local/rvm/gems/ruby-1.9.3-p392/gems/railties-3.2.12/lib/rails/application/routes_reloader.rb:40:in `each'
from /usr/local/rvm/gems/ruby-1.9.3-p392/gems/railties-3.2.12/lib/rails/application/routes_reloader.rb:40:in `load_paths'
from /usr/local/rvm/gems/ruby-1.9.3-p392/gems/railties-3.2.12/lib/rails/application/routes_reloader.rb:16:in `reload!'
from /usr/local/rvm/gems/ruby-1.9.3-p392/gems/railties-3.2.12/lib/rails/application.rb:108:in `reload_routes!'
from /usr/local/rvm/gems/ruby-1.9.3-p392/gems/devise-3.2.1/lib/devise/rails.rb:14:in `block in <class:Engine>'
from /usr/local/rvm/gems/ruby-1.9.3-p392/gems/activesupport-3.2.12/lib/active_support/lazy_load_hooks.rb:34:in `call'
from /usr/local/rvm/gems/ruby-1.9.3-p392/gems/activesupport-3.2.12/lib/active_support/lazy_load_hooks.rb:34:in `execute_hook'
from /usr/local/rvm/gems/ruby-1.9.3-p392/gems/activesupport-3.2.12/lib/active_support/lazy_load_hooks.rb:43:in `block in run_load_hooks'
from /usr/local/rvm/gems/ruby-1.9.3-p392/gems/activesupport-3.2.12/lib/active_support/lazy_load_hooks.rb:42:in `each'
from /usr/local/rvm/gems/ruby-1.9.3-p392/gems/activesupport-3.2.12/lib/active_support/lazy_load_hooks.rb:42:in `run_load_hooks'
from /usr/local/rvm/gems/ruby-1.9.3-p392/gems/railties-3.2.12/lib/rails/application/finisher.rb:52:in `block in <module:Finisher>'
from /usr/local/rvm/gems/ruby-1.9.3-p392/gems/railties-3.2.12/lib/rails/initializable.rb:30:in `instance_exec'
from /usr/local/rvm/gems/ruby-1.9.3-p392/gems/railties-3.2.12/lib/rails/initializable.rb:30:in `run'
from /usr/local/rvm/gems/ruby-1.9.3-p392/gems/railties-3.2.12/lib/rails/initializable.rb:55:in `block in run_initializers'
from /usr/local/rvm/gems/ruby-1.9.3-p392/gems/railties-3.2.12/lib/rails/initializable.rb:54:in `each'
from /usr/local/rvm/gems/ruby-1.9.3-p392/gems/railties-3.2.12/lib/rails/initializable.rb:54:in `run_initializers'
from /usr/local/rvm/gems/ruby-1.9.3-p392/gems/railties-3.2.12/lib/rails/application.rb:136:in `initialize!'
from /usr/local/rvm/gems/ruby-1.9.3-p392/gems/railties-3.2.12/lib/rails/railtie/configurable.rb:30:in `method_missing'
from /Users/thomaspouliquen/whereisthepolice/config/environment.rb:5:in `<top (required)>'
from /Users/thomaspouliquen/whereisthepolice/config.ru:3:in `block in <main>'
from /usr/local/rvm/gems/ruby-1.9.3-p392/gems/rack-1.4.5/lib/rack/builder.rb:51:in `instance_eval'
from /usr/local/rvm/gems/ruby-1.9.3-p392/gems/rack-1.4.5/lib/rack/builder.rb:51:in `initialize'
from /Users/thomaspouliquen/whereisthepolice/config.ru:in `new'
from /Users/thomaspouliquen/whereisthepolice/config.ru:in `<main>'
from /usr/local/rvm/gems/ruby-1.9.3-p392/gems/rack-1.4.5/lib/rack/builder.rb:40:in `eval'
from /usr/local/rvm/gems/ruby-1.9.3-p392/gems/rack-1.4.5/lib/rack/builder.rb:40:in `parse_file'
from /usr/local/rvm/gems/ruby-1.9.3-p392/gems/rack-1.4.5/lib/rack/server.rb:200:in `app'
from /usr/local/rvm/gems/ruby-1.9.3-p392/gems/railties-3.2.12/lib/rails/commands/server.rb:46:in `app'
from /usr/local/rvm/gems/ruby-1.9.3-p392/gems/rack-1.4.5/lib/rack/server.rb:304:in `wrapped_app'
from /usr/local/rvm/gems/ruby-1.9.3-p392/gems/rack-1.4.5/lib/rack/server.rb:254:in `start'
from /usr/local/rvm/gems/ruby-1.9.3-p392/gems/railties-3.2.12/lib/rails/commands/server.rb:70:in `start'
from /usr/local/rvm/gems/ruby-1.9.3-p392/gems/railties-3.2.12/lib/rails/commands.rb:55:in `block in <top (required)>'
from /usr/local/rvm/gems/ruby-1.9.3-p392/gems/railties-3.2.12/lib/rails/commands.rb:50:in `tap'
from /usr/local/rvm/gems/ruby-1.9.3-p392/gems/railties-3.2.12/lib/rails/commands.rb:50:in `<top (required)>'
from script/rails:6:in `require'
from script/rails:6:in `<main>'
What is the issue?
Did you by any chance change the name of your application?
Perhaps it was named WhereIsThePolice and now it's Omrails?
If you want to change the name of your app, you have to make changes to several files, so let me know if this is the case.

ActionMailer method missing "default_url_setting"

When I run my rails app in development mode, it runs fine. When I run it in production mode, though, it crashes on launch, and I get this output from the server:
/Users/user/.rvm/gems/ruby-1.9.3-p0/gems/actionmailer-3.2.3/lib/action_mailer/base.rb:437:in `method_missing': undefined method `default_url_setting=' for ActionMailer::Base:Class (NoMethodError)
from /Users/user/.rvm/gems/ruby-1.9.3-p0/gems/actionmailer-3.2.3/lib/action_mailer/railtie.rb:34:in `block (3 levels) in <class:Railtie>'
from /Users/user/.rvm/gems/ruby-1.9.3-p0/gems/actionmailer-3.2.3/lib/action_mailer/railtie.rb:34:in `each'
from /Users/user/.rvm/gems/ruby-1.9.3-p0/gems/actionmailer-3.2.3/lib/action_mailer/railtie.rb:34:in `block (2 levels) in <class:Railtie>'
from /Users/user/.rvm/gems/ruby-1.9.3-p0/gems/activesupport-3.2.3/lib/active_support/lazy_load_hooks.rb:36:in `instance_eval'
from /Users/user/.rvm/gems/ruby-1.9.3-p0/gems/activesupport-3.2.3/lib/active_support/lazy_load_hooks.rb:36:in `execute_hook'
from /Users/user/.rvm/gems/ruby-1.9.3-p0/gems/activesupport-3.2.3/lib/active_support/lazy_load_hooks.rb:43:in `block in run_load_hooks'
from /Users/user/.rvm/gems/ruby-1.9.3-p0/gems/activesupport-3.2.3/lib/active_support/lazy_load_hooks.rb:42:in `each'
from /Users/user/.rvm/gems/ruby-1.9.3-p0/gems/activesupport-3.2.3/lib/active_support/lazy_load_hooks.rb:42:in `run_load_hooks'
from /Users/user/.rvm/gems/ruby-1.9.3-p0/gems/actionmailer-3.2.3/lib/action_mailer/base.rb:733:in `<class:Base>'
from /Users/user/.rvm/gems/ruby-1.9.3-p0/gems/actionmailer-3.2.3/lib/action_mailer/base.rb:325:in `<module:ActionMailer>'
from /Users/user/.rvm/gems/ruby-1.9.3-p0/gems/actionmailer-3.2.3/lib/action_mailer/base.rb:10:in `<top (required)>'
from /Users/user/Desktop/MetaRepo/MetaWebsite/app/mailers/notification_mailer.rb:1:in `<top (required)>'
from /Users/user/.rvm/gems/ruby-1.9.3-p0/gems/activesupport-3.2.3/lib/active_support/dependencies.rb:251:in `require'
from /Users/user/.rvm/gems/ruby-1.9.3-p0/gems/activesupport-3.2.3/lib/active_support/dependencies.rb:251:in `block in require'
from /Users/user/.rvm/gems/ruby-1.9.3-p0/gems/activesupport-3.2.3/lib/active_support/dependencies.rb:236:in `load_dependency'
from /Users/user/.rvm/gems/ruby-1.9.3-p0/gems/activesupport-3.2.3/lib/active_support/dependencies.rb:251:in `require'
from /Users/user/.rvm/gems/ruby-1.9.3-p0/gems/activesupport-3.2.3/lib/active_support/dependencies.rb:359:in `require_or_load'
from /Users/user/.rvm/gems/ruby-1.9.3-p0/gems/activesupport-3.2.3/lib/active_support/dependencies.rb:313:in `depend_on'
from /Users/user/.rvm/gems/ruby-1.9.3-p0/gems/activesupport-3.2.3/lib/active_support/dependencies.rb:225:in `require_dependency'
from /Users/user/.rvm/gems/ruby-1.9.3-p0/gems/railties-3.2.3/lib/rails/engine.rb:439:in `block (2 levels) in eager_load!'
from /Users/user/.rvm/gems/ruby-1.9.3-p0/gems/railties-3.2.3/lib/rails/engine.rb:438:in `each'
from /Users/user/.rvm/gems/ruby-1.9.3-p0/gems/railties-3.2.3/lib/rails/engine.rb:438:in `block in eager_load!'
from /Users/user/.rvm/gems/ruby-1.9.3-p0/gems/railties-3.2.3/lib/rails/engine.rb:436:in `each'
from /Users/user/.rvm/gems/ruby-1.9.3-p0/gems/railties-3.2.3/lib/rails/engine.rb:436:in `eager_load!'
from /Users/user/.rvm/gems/ruby-1.9.3-p0/gems/railties-3.2.3/lib/rails/application/finisher.rb:53:in `block in <module:Finisher>'
from /Users/user/.rvm/gems/ruby-1.9.3-p0/gems/railties-3.2.3/lib/rails/initializable.rb:30:in `instance_exec'
from /Users/user/.rvm/gems/ruby-1.9.3-p0/gems/railties-3.2.3/lib/rails/initializable.rb:30:in `run'
from /Users/user/.rvm/gems/ruby-1.9.3-p0/gems/railties-3.2.3/lib/rails/initializable.rb:55:in `block in run_initializers'
from /Users/user/.rvm/gems/ruby-1.9.3-p0/gems/railties-3.2.3/lib/rails/initializable.rb:54:in `each'
from /Users/user/.rvm/gems/ruby-1.9.3-p0/gems/railties-3.2.3/lib/rails/initializable.rb:54:in `run_initializers'
from /Users/user/.rvm/gems/ruby-1.9.3-p0/gems/railties-3.2.3/lib/rails/application.rb:136:in `initialize!'
from /Users/user/.rvm/gems/ruby-1.9.3-p0/gems/railties-3.2.3/lib/rails/railtie/configurable.rb:30:in `method_missing'
from /Users/user/Desktop/MetaRepo/MetaWebsite/config/environment.rb:5:in `<top (required)>'
from /Users/user/Desktop/MetaRepo/MetaWebsite/config.ru:4:in `require'
from /Users/user/Desktop/MetaRepo/MetaWebsite/config.ru:4:in `block in <main>'
from /Users/user/.rvm/gems/ruby-1.9.3-p0/gems/rack-1.4.1/lib/rack/builder.rb:51:in `instance_eval'
from /Users/user/.rvm/gems/ruby-1.9.3-p0/gems/rack-1.4.1/lib/rack/builder.rb:51:in `initialize'
from /Users/user/Desktop/MetaRepo/MetaWebsite/config.ru:1:in `new'
from /Users/user/Desktop/MetaRepo/MetaWebsite/config.ru:1:in `<main>'
from /Users/user/.rvm/gems/ruby-1.9.3-p0/gems/rack-1.4.1/lib/rack/builder.rb:40:in `eval'
from /Users/user/.rvm/gems/ruby-1.9.3-p0/gems/rack-1.4.1/lib/rack/builder.rb:40:in `parse_file'
from /Users/user/.rvm/gems/ruby-1.9.3-p0/gems/rack-1.4.1/lib/rack/server.rb:200:in `app'
from /Users/user/.rvm/gems/ruby-1.9.3-p0/gems/railties-3.2.3/lib/rails/commands/server.rb:46:in `app'
from /Users/user/.rvm/gems/ruby-1.9.3-p0/gems/rack-1.4.1/lib/rack/server.rb:301:in `wrapped_app'
from /Users/user/.rvm/gems/ruby-1.9.3-p0/gems/rack-1.4.1/lib/rack/server.rb:252:in `start'
from /Users/user/.rvm/gems/ruby-1.9.3-p0/gems/railties-3.2.3/lib/rails/commands/server.rb:70:in `start'
from /Users/user/.rvm/gems/ruby-1.9.3-p0/gems/railties-3.2.3/lib/rails/commands.rb:55:in `block in <top (required)>'
from /Users/user/.rvm/gems/ruby-1.9.3-p0/gems/railties-3.2.3/lib/rails/commands.rb:50:in `tap'
from /Users/user/.rvm/gems/ruby-1.9.3-p0/gems/railties-3.2.3/lib/rails/commands.rb:50:in `<top (required)>'
from script/rails:6:in `require'
from script/rails:6:in `<main>'
Clearly it has something to do with my ActionMailer gem, but I'm completely stumped. Any help is much appreciated!
On the documentation (ctrl+F "default_url"), there is default_url_options. Perhaps you mispelled the method?
config.action_mailer.default_url_options = { :host => "example.com" }

Rails 3 uninitialized constant ... (NameError) in custom initializer

I'm trying to implement the contact form described here.
I get the following error when I run rails server:
/home/user/project/web/config/initializers/app_config.rb:11:in `<top (required)>': uninitialized constant RailsContactForm (NameError)
from /home/user/.rvm/gems/ruby-1.9.2-p290/gems/railties-3.0.7/lib/rails/engine.rb:201:in `block (2 levels) in <class:Engine>'
from /home/user/.rvm/gems/ruby-1.9.2-p290/gems/railties-3.0.7/lib/rails/engine.rb:200:in `each'
from /home/user/.rvm/gems/ruby-1.9.2-p290/gems/railties-3.0.7/lib/rails/engine.rb:200:in `block in <class:Engine>'
from /home/user/.rvm/gems/ruby-1.9.2-p290/gems/railties-3.0.7/lib/rails/initializable.rb:25:in `instance_exec'
from /home/user/.rvm/gems/ruby-1.9.2-p290/gems/railties-3.0.7/lib/rails/initializable.rb:25:in `run'
from /home/user/.rvm/gems/ruby-1.9.2-p290/gems/railties-3.0.7/lib/rails/initializable.rb:50:in `block in run_initializers'
from /home/user/.rvm/gems/ruby-1.9.2-p290/gems/railties-3.0.7/lib/rails/initializable.rb:49:in `each'
from /home/user/.rvm/gems/ruby-1.9.2-p290/gems/railties-3.0.7/lib/rails/initializable.rb:49:in `run_initializers'
from /home/user/.rvm/gems/ruby-1.9.2-p290/gems/railties-3.0.7/lib/rails/application.rb:134:in `initialize!'
from /home/user/.rvm/gems/ruby-1.9.2-p290/gems/railties-3.0.7/lib/rails/application.rb:77:in `method_missing'
from /home/user/project/web/config/environment.rb:9:in `<top (required)>'
from /home/user/project/web/config.ru:3:in `block in <main>'
from /home/user/.rvm/gems/ruby-1.9.2-p290/gems/rack-1.2.3/lib/rack/builder.rb:46:in `instance_eval'
from /home/user/.rvm/gems/ruby-1.9.2-p290/gems/rack-1.2.3/lib/rack/builder.rb:46:in `initialize'
from /home/user/project/web/config.ru:1:in `new'
from /home/user/project/web/config.ru:1:in `<main>'
from /home/user/.rvm/gems/ruby-1.9.2-p290/gems/rack-1.2.3/lib/rack/builder.rb:35:in `eval'
from /home/user/.rvm/gems/ruby-1.9.2-p290/gems/rack-1.2.3/lib/rack/builder.rb:35:in `parse_file'
from /home/user/.rvm/gems/ruby-1.9.2-p290/gems/rack-1.2.3/lib/rack/server.rb:162:in `app'
from /home/user/.rvm/gems/ruby-1.9.2-p290/gems/rack-1.2.3/lib/rack/server.rb:253:in `wrapped_app'
from /home/user/.rvm/gems/ruby-1.9.2-p290/gems/rack-1.2.3/lib/rack/server.rb:204:in `start'
from /home/user/.rvm/gems/ruby-1.9.2-p290/gems/railties-3.0.7/lib/rails/commands/server.rb:65:in `start'
from /home/user/.rvm/gems/ruby-1.9.2-p290/gems/railties-3.0.7/lib/rails/commands.rb:30:in `block in <top (required)>'
from /home/user/.rvm/gems/ruby-1.9.2-p290/gems/railties-3.0.7/lib/rails/commands.rb:27:in `tap'
from /home/user/.rvm/gems/ruby-1.9.2-p290/gems/railties-3.0.7/lib/rails/commands.rb:27:in `<top (required)>'
from script/rails:6:in `require'
from script/rails:6:in `<main>'
/home/user/project/web/config/initializers/app_config.rb:11:in `<top (required)>': uninitialized constant RailsContactForm (NameError)
from /home/user/.rvm/gems/ruby-1.9.2-p290/gems/railties-3.0.7/lib/rails/engine.rb:201:in `block (2 levels) in <class:Engine>'
from /home/user/.rvm/gems/ruby-1.9.2-p290/gems/railties-3.0.7/lib/rails/engine.rb:200:in `each'
from /home/user/.rvm/gems/ruby-1.9.2-p290/gems/railties-3.0.7/lib/rails/engine.rb:200:in `block in <class:Engine>'
from /home/user/.rvm/gems/ruby-1.9.2-p290/gems/railties-3.0.7/lib/rails/initializable.rb:25:in `instance_exec'
from /home/user/.rvm/gems/ruby-1.9.2-p290/gems/railties-3.0.7/lib/rails/initializable.rb:25:in `run'
from /home/user/.rvm/gems/ruby-1.9.2-p290/gems/railties-3.0.7/lib/rails/initializable.rb:50:in `block in run_initializers'
from /home/user/.rvm/gems/ruby-1.9.2-p290/gems/railties-3.0.7/lib/rails/initializable.rb:49:in `each'
from /home/user/.rvm/gems/ruby-1.9.2-p290/gems/railties-3.0.7/lib/rails/initializable.rb:49:in `run_initializers'
from /home/user/.rvm/gems/ruby-1.9.2-p290/gems/railties-3.0.7/lib/rails/application.rb:134:in `initialize!'
from /home/user/.rvm/gems/ruby-1.9.2-p290/gems/railties-3.0.7/lib/rails/application.rb:77:in `method_missing'
from /home/user/project/web/config/environment.rb:9:in `<top (required)>'
from /home/user/project/web/config.ru:3:in `block in <main>'
from /home/user/.rvm/gems/ruby-1.9.2-p290/gems/rack-1.2.3/lib/rack/builder.rb:46:in `instance_eval'
from /home/user/.rvm/gems/ruby-1.9.2-p290/gems/rack-1.2.3/lib/rack/builder.rb:46:in `initialize'
from /home/user/project/web/config.ru:1:in `new'
from /home/user/project/web/config.ru:1:in `<main>'
from /home/user/.rvm/gems/ruby-1.9.2-p290/gems/rack-1.2.3/lib/rack/builder.rb:35:in `eval'
from /home/user/.rvm/gems/ruby-1.9.2-p290/gems/rack-1.2.3/lib/rack/builder.rb:35:in `parse_file'
from /home/user/.rvm/gems/ruby-1.9.2-p290/gems/rack-1.2.3/lib/rack/server.rb:162:in `app'
from /home/user/.rvm/gems/ruby-1.9.2-p290/gems/rack-1.2.3/lib/rack/server.rb:253:in `wrapped_app'
from /home/user/.rvm/gems/ruby-1.9.2-p290/gems/rack-1.2.3/lib/rack/server.rb:204:in `start'
from /home/user/.rvm/gems/ruby-1.9.2-p290/gems/railties-3.0.7/lib/rails/commands/server.rb:65:in `start'
from /home/user/.rvm/gems/ruby-1.9.2-p290/gems/railties-3.0.7/lib/rails/commands.rb:30:in `block in <top (required)>'
from /home/user/.rvm/gems/ruby-1.9.2-p290/gems/railties-3.0.7/lib/rails/commands.rb:27:in `tap'
from /home/user/.rvm/gems/ruby-1.9.2-p290/gems/railties-3.0.7/lib/rails/commands.rb:27:in `<top (required)>'
from script/rails:6:in `require'
from script/rails:6:in `<main>'
I can see he hasn't defined RailsContactForm anywhere else. I don't know enough rails to know whether this is intentional.
In this line: "RailsContactForm::Application.configure"
RailsContactForm is just the name he gave the application when he ran rails create. Just substitute that with your application name.
In that tutorial RailsContactForm is the name of the main app.
You'll need to change that to your app's name.

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