On Apr 6, 2012, at 11:21 AM, Patrick J. Collins wrote:

> I am working on a project that uses active_admin, and I found once
> building out all of the admin resource files, running rspec causes the
> following error:
> 
> /Users/patrick/.rvm/gems/ruby-1.9.3-p125@foobar/gems/activesupport-3.2.2/lib/active_support/dependencies.rb:503:in
>  `load_missing_constant': Expected 
> /Users/patrick/coding/rails/foobar/app/admin/users.rb to define Users 
> (LoadError)
>  from 
> /Users/patrick/.rvm/gems/ruby-1.9.3-p125@foobar/gems/activesupport-3.2.2/lib/active_support/dependencies.rb:192:in
>  `block in const_missing'
>  from 
> /Users/patrick/.rvm/gems/ruby-1.9.3-p125@foobar/gems/activesupport-3.2.2/lib/active_support/dependencies.rb:190:in
>  `each'
>  from 
> /Users/patrick/.rvm/gems/ruby-1.9.3-p125@foobar/gems/activesupport-3.2.2/lib/active_support/dependencies.rb:190:in
>  `const_missing'
>  from 
> /Users/patrick/coding/rails/foobar/app/controllers/users/confirmations_controller.rb:1:in
>  `<top (required)>'
>  from 
> /Users/patrick/.rvm/gems/ruby-1.9.3-p125@foobar/gems/activesupport-3.2.2/lib/active_support/dependencies.rb:251:in
>  `require'
>  from 
> /Users/patrick/.rvm/gems/ruby-1.9.3-p125@foobar/gems/activesupport-3.2.2/lib/active_support/dependencies.rb:251:in
>  `block in require'
>  from 
> /Users/patrick/.rvm/gems/ruby-1.9.3-p125@foobar/gems/activesupport-3.2.2/lib/active_support/dependencies.rb:236:in
>  `load_dependency'
>  from 
> /Users/patrick/.rvm/gems/ruby-1.9.3-p125@foobar/gems/activesupport-3.2.2/lib/active_support/dependencies.rb:251:in
>  `require'
>  from 
> /Users/patrick/.rvm/gems/ruby-1.9.3-p125@foobar/gems/activesupport-3.2.2/lib/active_support/dependencies.rb:359:in
>  `require_or_load'
>  from 
> /Users/patrick/.rvm/gems/ruby-1.9.3-p125@foobar/gems/activesupport-3.2.2/lib/active_support/dependencies.rb:313:in
>  `depend_on'
>  from 
> /Users/patrick/.rvm/gems/ruby-1.9.3-p125@foobar/gems/activesupport-3.2.2/lib/active_support/dependencies.rb:225:in
>  `require_dependency'
>  from 
> /Users/patrick/.rvm/gems/ruby-1.9.3-p125@foobar/gems/railties-3.2.2/lib/rails/engine.rb:439:in
>  `block (2 levels) in eager_load!'
>  from 
> /Users/patrick/.rvm/gems/ruby-1.9.3-p125@foobar/gems/railties-3.2.2/lib/rails/engine.rb:438:in
>  `each'
>  from 
> /Users/patrick/.rvm/gems/ruby-1.9.3-p125@foobar/gems/railties-3.2.2/lib/rails/engine.rb:438:in
>  `block in eager_load!'
>  from 
> /Users/patrick/.rvm/gems/ruby-1.9.3-p125@foobar/gems/railties-3.2.2/lib/rails/engine.rb:436:in
>  `each'
>  from 
> /Users/patrick/.rvm/gems/ruby-1.9.3-p125@foobar/gems/railties-3.2.2/lib/rails/engine.rb:436:in
>  `eager_load!'
>  from 
> /Users/patrick/.rvm/gems/ruby-1.9.3-p125@foobar/gems/railties-3.2.2/lib/rails/application/finisher.rb:53:in
>  `block in <module:Finisher>'
>  from 
> /Users/patrick/.rvm/gems/ruby-1.9.3-p125@foobar/gems/railties-3.2.2/lib/rails/initializable.rb:30:in
>  `instance_exec'
>  from 
> /Users/patrick/.rvm/gems/ruby-1.9.3-p125@foobar/gems/railties-3.2.2/lib/rails/initializable.rb:30:in
>  `run'
>  from 
> /Users/patrick/.rvm/gems/ruby-1.9.3-p125@foobar/gems/railties-3.2.2/lib/rails/initializable.rb:55:in
>  `block in run_initializers'
>  from 
> /Users/patrick/.rvm/gems/ruby-1.9.3-p125@foobar/gems/railties-3.2.2/lib/rails/initializable.rb:54:in
>  `each'
>  from 
> /Users/patrick/.rvm/gems/ruby-1.9.3-p125@foobar/gems/railties-3.2.2/lib/rails/initializable.rb:54:in
>  `run_initializers'
>  from 
> /Users/patrick/.rvm/gems/ruby-1.9.3-p125@foobar/gems/railties-3.2.2/lib/rails/application.rb:136:in
>  `initialize!'
>  from 
> /Users/patrick/.rvm/gems/ruby-1.9.3-p125@foobar/gems/railties-3.2.2/lib/rails/railtie/configurable.rb:30:in
>  `method_missing'
>  from /Users/patrick/coding/rails/foobar/config/environment.rb:5:in `<top 
> (required)>'
>  from 
> /Users/patrick/.rvm/rubies/ruby-1.9.3-p125/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:in
>  `require'
>  from 
> /Users/patrick/.rvm/rubies/ruby-1.9.3-p125/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:in
>  `require'
>  from /Users/patrick/coding/rails/foobar/spec/spec_helper.rb:3:in `<top 
> (required)>'
>  from 
> /Users/patrick/.rvm/rubies/ruby-1.9.3-p125/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:in
>  `require'
>  from 
> /Users/patrick/.rvm/rubies/ruby-1.9.3-p125/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:in
>  `require'
>  from 
> /Users/patrick/coding/rails/foobar/spec/controllers/locations_controller_spec.rb:1:in
>  `<top (required)>'
>  from 
> /Users/patrick/.rvm/gems/ruby-1.9.3-p125@foobar/gems/rspec-core-2.8.0/lib/rspec/core/configuration.rb:698:in
>  `load'
>  from 
> /Users/patrick/.rvm/gems/ruby-1.9.3-p125@foobar/gems/rspec-core-2.8.0/lib/rspec/core/configuration.rb:698:in
>  `block in load_spec_files'
>  from 
> /Users/patrick/.rvm/gems/ruby-1.9.3-p125@foobar/gems/rspec-core-2.8.0/lib/rspec/core/configuration.rb:698:in
>  `map'
>  from 
> /Users/patrick/.rvm/gems/ruby-1.9.3-p125@foobar/gems/rspec-core-2.8.0/lib/rspec/core/configuration.rb:698:in
>  `load_spec_files'
>  from 
> /Users/patrick/.rvm/gems/ruby-1.9.3-p125@foobar/gems/rspec-core-2.8.0/lib/rspec/core/command_line.rb:22:in
>  `run'
>  from 
> /Users/patrick/.rvm/gems/ruby-1.9.3-p125@foobar/gems/rspec-core-2.8.0/lib/rspec/core/runner.rb:80:in
>  `run_in_process'
>  from 
> /Users/patrick/.rvm/gems/ruby-1.9.3-p125@foobar/gems/rspec-core-2.8.0/lib/rspec/core/runner.rb:69:in
>  `run'
>  from 
> /Users/patrick/.rvm/gems/ruby-1.9.3-p125@foobar/gems/rspec-core-2.8.0/lib/rspec/core/runner.rb:10:in
>  `block in autorun'
> 
> 
> ...  Changing the filename app/admin/users.rb to app/admin/wtfs.rb
> 
> makes this error go away... so--- wtfs indeed!
> 
> incidentally if you are wondering what is this business with
> confirmations_controller (in the stack trace), that just inherits from Devise:
> 
>  class Users::ConfirmationsController < Devise::ConfirmationsController
>  end 
> 
> 
> Patrick J. Collins
> http://collinatorstudios.com
> 
> _______________________________________________
> rspec-users mailing list
> rspec-users@rubyforge.org
> http://rubyforge.org/mailman/listinfo/rspec-users

I'm pretty sure this is an issue with how Rails autoloads things, I've run into 
it a few times. Checkout this post:

http://stackoverflow.com/questions/4074830/adding-lib-to-config-autoload-paths-in-rails-3-does-not-autoload-my-module

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