rom rails stack trace

gistfile1.txt

/Users/maetl/.rvm/gems/ruby-2.1.4/gems/rom-0.6.0.beta2/lib/rom/support/registry.rb:26:in `block in []': nil doesn't exist in ROM::RelationRegistry registry (ROM::Registry::ElementNotFoundError)
	from /Users/maetl/.rvm/gems/ruby-2.1.4/gems/rom-0.6.0.beta2/lib/rom/support/registry.rb:26:in `fetch'
	from /Users/maetl/.rvm/gems/ruby-2.1.4/gems/rom-0.6.0.beta2/lib/rom/support/registry.rb:26:in `[]'
	from /Users/maetl/.rvm/gems/ruby-2.1.4/gems/rom-0.6.0.beta2/lib/rom/setup/finalize.rb:91:in `block in load_readers'
	from /Users/maetl/.rvm/gems/ruby-2.1.4/gems/rom-0.6.0.beta2/lib/rom/setup/finalize.rb:90:in `each'
	from /Users/maetl/.rvm/gems/ruby-2.1.4/gems/rom-0.6.0.beta2/lib/rom/setup/finalize.rb:90:in `load_readers'
	from /Users/maetl/.rvm/gems/ruby-2.1.4/gems/rom-0.6.0.beta2/lib/rom/setup/finalize.rb:53:in `run!'
	from /Users/maetl/.rvm/gems/ruby-2.1.4/gems/rom-0.6.0.beta2/lib/rom/setup.rb:61:in `finalize'
	from /Users/maetl/.rvm/gems/ruby-2.1.4/gems/rom-0.6.0.beta2/lib/rom/global.rb:176:in `finalize'
	from /Users/maetl/.rvm/gems/ruby-2.1.4/gems/rom-rails-0.3.0.beta1/lib/rom/rails/railtie.rb:73:in `setup'
	from /Users/maetl/.rvm/gems/ruby-2.1.4/gems/railties-4.2.0/lib/rails/railtie.rb:194:in `public_send'
	from /Users/maetl/.rvm/gems/ruby-2.1.4/gems/railties-4.2.0/lib/rails/railtie.rb:194:in `method_missing'
	from /Users/maetl/.rvm/gems/ruby-2.1.4/gems/rom-rails-0.3.0.beta1/lib/rom/rails/railtie.rb:35:in `block in <class:Railtie>'
	from /Users/maetl/.rvm/gems/ruby-2.1.4/gems/activesupport-4.2.0/lib/active_support/callbacks.rb:443:in `instance_exec'
	from /Users/maetl/.rvm/gems/ruby-2.1.4/gems/activesupport-4.2.0/lib/active_support/callbacks.rb:443:in `block in make_lambda'
	from /Users/maetl/.rvm/gems/ruby-2.1.4/gems/activesupport-4.2.0/lib/active_support/callbacks.rb:189:in `call'
	from /Users/maetl/.rvm/gems/ruby-2.1.4/gems/activesupport-4.2.0/lib/active_support/callbacks.rb:189:in `block in simple'
	from /Users/maetl/.rvm/gems/ruby-2.1.4/gems/activesupport-4.2.0/lib/active_support/callbacks.rb:92:in `call'
	from /Users/maetl/.rvm/gems/ruby-2.1.4/gems/activesupport-4.2.0/lib/active_support/callbacks.rb:92:in `_run_callbacks'
	from /Users/maetl/.rvm/gems/ruby-2.1.4/gems/activesupport-4.2.0/lib/active_support/callbacks.rb:734:in `_run_prepare_callbacks'
	from /Users/maetl/.rvm/gems/ruby-2.1.4/gems/activesupport-4.2.0/lib/active_support/callbacks.rb:81:in `run_callbacks'
	from /Users/maetl/.rvm/gems/ruby-2.1.4/gems/actionpack-4.2.0/lib/action_dispatch/middleware/reloader.rb:83:in `prepare!'
	from /Users/maetl/.rvm/gems/ruby-2.1.4/gems/actionpack-4.2.0/lib/action_dispatch/middleware/reloader.rb:55:in `prepare!'
	from /Users/maetl/.rvm/gems/ruby-2.1.4/gems/railties-4.2.0/lib/rails/application/finisher.rb:50:in `block in <module:Finisher>'
	from /Users/maetl/.rvm/gems/ruby-2.1.4/gems/railties-4.2.0/lib/rails/initializable.rb:30:in `instance_exec'
	from /Users/maetl/.rvm/gems/ruby-2.1.4/gems/railties-4.2.0/lib/rails/initializable.rb:30:in `run'
	from /Users/maetl/.rvm/gems/ruby-2.1.4/gems/railties-4.2.0/lib/rails/initializable.rb:55:in `block in run_initializers'
	from /Users/maetl/.rvm/rubies/ruby-2.1.4/lib/ruby/2.1.0/tsort.rb:226:in `block in tsort_each'
	from /Users/maetl/.rvm/rubies/ruby-2.1.4/lib/ruby/2.1.0/tsort.rb:348:in `block (2 levels) in each_strongly_connected_component'
	from /Users/maetl/.rvm/rubies/ruby-2.1.4/lib/ruby/2.1.0/tsort.rb:427:in `each_strongly_connected_component_from'
	from /Users/maetl/.rvm/rubies/ruby-2.1.4/lib/ruby/2.1.0/tsort.rb:347:in `block in each_strongly_connected_component'
	from /Users/maetl/.rvm/rubies/ruby-2.1.4/lib/ruby/2.1.0/tsort.rb:345:in `each'
	from /Users/maetl/.rvm/rubies/ruby-2.1.4/lib/ruby/2.1.0/tsort.rb:345:in `call'
	from /Users/maetl/.rvm/rubies/ruby-2.1.4/lib/ruby/2.1.0/tsort.rb:345:in `each_strongly_connected_component'
	from /Users/maetl/.rvm/rubies/ruby-2.1.4/lib/ruby/2.1.0/tsort.rb:224:in `tsort_each'
	from /Users/maetl/.rvm/rubies/ruby-2.1.4/lib/ruby/2.1.0/tsort.rb:205:in `tsort_each'
	from /Users/maetl/.rvm/gems/ruby-2.1.4/gems/railties-4.2.0/lib/rails/initializable.rb:54:in `run_initializers'
	from /Users/maetl/.rvm/gems/ruby-2.1.4/gems/railties-4.2.0/lib/rails/application.rb:352:in `initialize!'
	from /Users/maetl/Projects/rom-todo-app/config/environment.rb:5:in `<top (required)>'
	from /Users/maetl/.rvm/gems/ruby-2.1.4/gems/spring-1.3.3/lib/spring/application.rb:92:in `require'
	from /Users/maetl/.rvm/gems/ruby-2.1.4/gems/spring-1.3.3/lib/spring/application.rb:92:in `preload'
	from /Users/maetl/.rvm/gems/ruby-2.1.4/gems/spring-1.3.3/lib/spring/application.rb:143:in `serve'
	from /Users/maetl/.rvm/gems/ruby-2.1.4/gems/spring-1.3.3/lib/spring/application.rb:131:in `block in run'
	from /Users/maetl/.rvm/gems/ruby-2.1.4/gems/spring-1.3.3/lib/spring/application.rb:125:in `loop'
	from /Users/maetl/.rvm/gems/ruby-2.1.4/gems/spring-1.3.3/lib/spring/application.rb:125:in `run'
	from /Users/maetl/.rvm/gems/ruby-2.1.4/gems/spring-1.3.3/lib/spring/application/boot.rb:18:in `<top (required)>'
	from /Users/maetl/.rvm/rubies/ruby-2.1.4/lib/ruby/site_ruby/2.1.0/rubygems/core_ext/kernel_require.rb:54:in `require'
	from /Users/maetl/.rvm/rubies/ruby-2.1.4/lib/ruby/site_ruby/2.1.0/rubygems/core_ext/kernel_require.rb:54:in `require'
	from -e:1:in `<main>'