Using the default profile...
uninitialized constant ActionController::Dispatcher (NameError)
/Users/chinog9/.rvm/gems/ruby-1.9.2-p180/gems/cucumber-rails-0.3.2/lib/cucumber/rails/action_controller.rb:51:in `rescue in <top (required)>'
/Users/chinog9/.rvm/gems/ruby-1.9.2-p180/gems/cucumber-rails-0.3.2/lib/cucumber/rails/action_controller.rb:42:in `<top (required)>'
/Users/chinog9/.rvm/gems/ruby-1.9.2-p180/gems/cucumber-rails-0.3.2/lib/cucumber/rails/world.rb:27:in `<top (required)>'
/Users/chinog9/INNKU/tacos/features/support/env.rb:11:in `<top (required)>'
/Users/chinog9/.rvm/gems/ruby-1.9.2-p180/gems/cucumber-0.10.2/lib/cucumber/rb_support/rb_language.rb:143:in `load'
/Users/chinog9/.rvm/gems/ruby-1.9.2-p180/gems/cucumber-0.10.2/lib/cucumber/rb_support/rb_language.rb:143:in `load_code_file'
/Users/chinog9/.rvm/gems/ruby-1.9.2-p180/gems/cucumber-0.10.2/lib/cucumber/runtime/support_code.rb:176:in `load_file'
/Users/chinog9/.rvm/gems/ruby-1.9.2-p180/gems/cucumber-0.10.2/lib/cucumber/runtime/support_code.rb:78:in `block in load_files!'
/Users/chinog9/.rvm/gems/ruby-1.9.2-p180/gems/cucumber-0.10.2/lib/cucumber/runtime/support_code.rb:77:in `each'
/Users/chinog9/.rvm/gems/ruby-1.9.2-p180/gems/cucumber-0.10.2/lib/cucumber/runtime/support_code.rb:77:in `load_files!'
/Users/chinog9/.rvm/gems/ruby-1.9.2-p180/gems/cucumber-0.10.2/lib/cucumber/runtime.rb:137:in `load_step_definitions'
/Users/chinog9/.rvm/gems/ruby-1.9.2-p180/gems/cucumber-0.10.2/lib/cucumber/runtime.rb:39:in `run!'
/Users/chinog9/.rvm/gems/ruby-1.9.2-p180/gems/cucumber-0.10.2/lib/cucumber/cli/main.rb:43:in `execute!'
/Users/chinog9/.rvm/gems/ruby-1.9.2-p180/gems/cucumber-0.10.2/lib/cucumber/cli/main.rb:20:in `execute'
/Users/chinog9/.rvm/gems/ruby-1.9.2-p180/gems/cucumber-0.10.2/bin/cucumber:14:in `<top (required)>'
/Users/chinog9/.rvm/gems/ruby-1.9.2-p180/bin/cucumber:19:in `load'
/Users/chinog9/.rvm/gems/ruby-1.9.2-p180/bin/cucumber:19:in `<main>'

这是我的env.rb：

ENV["RAILS_ENV"] ||= "test"
require File.expand_path(File.dirname(__FILE__) + '/../../config/environment')
 
require 'cucumber/formatter/unicode' # Remove this line if you don't want Cucumber Unicode support
require 'cucumber/rails/world'
require 'cucumber/rails/active_record'
require 'cucumber/web/tableish'
 
require 'capybara/rails'
require 'capybara/cucumber'
require 'capybara/session'
require 'cucumber/rails/capybara_javascript_emulation' # Lets you click links with onclick javascript handlers without using @culerity or @javascript
 
Capybara.default_selector = :css
 
ActionController::Base.allow_rescue = false
 
 
Cucumber::Rails::World.use_transactional_fixtures = true
 
if defined?(ActiveRecord::Base)
  begin
    require 'database_cleaner'
    DatabaseCleaner.strategy = :truncation
  rescue LoadError => ignore_if_database_cleaner_not_present
  end
end

这是我的Gemfile：

source 'http://rubygems.org'
 
gem 'rails','3.1.0.rc4'
 
gem 'sqlite3'
gem 'nifty-generators'
 
gem 'sass-rails',"~> 3.1.0.rc"
gem 'coffee-script'
gem 'uglifier'
 
gem 'jquery-rails'
 
gem 'ruby-debug19',:require => 'ruby-debug'
 
group :development,:test do 
    gem 'capybara'
    gem 'database_cleaner'
    gem 'cucumber-rails'
    gem 'cucumber'
    gem 'rspec-rails','>=2.6'
    gem 'rspec-rails-mocha'
    gem 'spork','~> 0.9.0.rc'
    gem 'factory_girl_rails'
    gem 'launchy'
    gem "ruby-debug19"
    gem 'turn',:require => false
    gem "selenium-client"
end
 
gem "mocha",:group => :test

谢谢！