Rails - Moteur de dégagement - problème d'installation

Question

L'installation pour le dégagement semble très simple (http://wiki.github.com/thoughtbot/clearance/installation). Je suis dans les instructions, bien que je reçois une erreur presque immédiatement.

Sur la cinquième étape "rake db: migrate"

-je obtenir l'erreur suivante:

rake aborted! 
undefined method `configure' for Clearance:Module 

Je ne sais pas ce que je devrais faire différemment?

Merci d'avance!

-Elliot

mise à jour avec trace ajouté

** Invoke db:migrate (first_time) 
** Invoke environment (first_time) 
** Execute environment 
rake aborted! 
undefined method `configure' for Clearance:Module 
/Users/elliot/work/liftrr/config/initializers/clearance.rb:1 
/Users/elliot/.gem/ruby/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:145:in `load_without_new_constant_marking' 
/Users/elliot/.gem/ruby/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:145:in `load' 
/Users/elliot/.gem/ruby/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:521:in `new_constants_in' 
/Users/elliot/.gem/ruby/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:145:in `load' 
/Library/Ruby/Gems/1.8/gems/rails-2.3.5/lib/initializer.rb:622:in `load_application_initializers' 
/Library/Ruby/Gems/1.8/gems/rails-2.3.5/lib/initializer.rb:621:in `each' 
/Library/Ruby/Gems/1.8/gems/rails-2.3.5/lib/initializer.rb:621:in `load_application_initializers' 
/Library/Ruby/Gems/1.8/gems/rails-2.3.5/lib/initializer.rb:176:in `process' 
/Library/Ruby/Gems/1.8/gems/rails-2.3.5/lib/initializer.rb:113:in `send' 
/Library/Ruby/Gems/1.8/gems/rails-2.3.5/lib/initializer.rb:113:in `run' 
/Users/elliot/work/liftrr/config/environment.rb:9 
/Library/Ruby/Site/1.8/rubygems/custom_require.rb:31:in `gem_original_require' 
/Library/Ruby/Site/1.8/rubygems/custom_require.rb:31:in `require' 
/Users/elliot/.gem/ruby/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:156:in `require' 
/Users/elliot/.gem/ruby/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:521:in `new_constants_in' 
/Users/elliot/.gem/ruby/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:156:in `require' 
/Library/Ruby/Gems/1.8/gems/rails-2.3.5/lib/tasks/misc.rake:4 
/Users/elliot/.gem/ruby/1.8/gems/rake-0.8.7/lib/rake.rb:636:in `call' 
/Users/elliot/.gem/ruby/1.8/gems/rake-0.8.7/lib/rake.rb:636:in `execute' 
/Users/elliot/.gem/ruby/1.8/gems/rake-0.8.7/lib/rake.rb:631:in `each' 
/Users/elliot/.gem/ruby/1.8/gems/rake-0.8.7/lib/rake.rb:631:in `execute' 
/Users/elliot/.gem/ruby/1.8/gems/rake-0.8.7/lib/rake.rb:597:in `invoke_with_call_chain' 
/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/monitor.rb:242:in `synchronize' 
/Users/elliot/.gem/ruby/1.8/gems/rake-0.8.7/lib/rake.rb:590:in `invoke_with_call_chain' 
/Users/elliot/.gem/ruby/1.8/gems/rake-0.8.7/lib/rake.rb:607:in `invoke_prerequisites' 
/Users/elliot/.gem/ruby/1.8/gems/rake-0.8.7/lib/rake.rb:604:in `each' 
/Users/elliot/.gem/ruby/1.8/gems/rake-0.8.7/lib/rake.rb:604:in `invoke_prerequisites' 
/Users/elliot/.gem/ruby/1.8/gems/rake-0.8.7/lib/rake.rb:596:in `invoke_with_call_chain' 
/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/monitor.rb:242:in `synchronize' 
/Users/elliot/.gem/ruby/1.8/gems/rake-0.8.7/lib/rake.rb:590:in `invoke_with_call_chain' 
/Users/elliot/.gem/ruby/1.8/gems/rake-0.8.7/lib/rake.rb:583:in `invoke' 
/Users/elliot/.gem/ruby/1.8/gems/rake-0.8.7/lib/rake.rb:2051:in `invoke_task' 
/Users/elliot/.gem/ruby/1.8/gems/rake-0.8.7/lib/rake.rb:2029:in `top_level' 
/Users/elliot/.gem/ruby/1.8/gems/rake-0.8.7/lib/rake.rb:2029:in `each' 
/Users/elliot/.gem/ruby/1.8/gems/rake-0.8.7/lib/rake.rb:2029:in `top_level' 
/Users/elliot/.gem/ruby/1.8/gems/rake-0.8.7/lib/rake.rb:2068:in `standard_exception_handling' 
/Users/elliot/.gem/ruby/1.8/gems/rake-0.8.7/lib/rake.rb:2023:in `top_level' 
/Users/elliot/.gem/ruby/1.8/gems/rake-0.8.7/lib/rake.rb:2001:in `run' 
/Users/elliot/.gem/ruby/1.8/gems/rake-0.8.7/lib/rake.rb:2068:in `standard_exception_handling' 
/Users/elliot/.gem/ruby/1.8/gems/rake-0.8.7/lib/rake.rb:1998:in `run' 
/Users/elliot/.gem/ruby/1.8/gems/rake-0.8.7/bin/rake:31 
/usr/bin/rake:19:in `load' 
/usr/bin/rake:19 

Answer 1

Transforme le wiki d'installation était pas à jour. Il a depuis été mis à jour.