Rails Tutorial Sample App

When you read the 3rd chapter, the first time you run RSpec in the tutorial fails:

E:\05 Create\code\temp\railstutorial\sample_app>rspec Spec/requests/static_pages
_spec.rb
E:/05 create/code/temp/railstutorial/sample_app/spec/spec_helper.rb:32:in ' block
(2 levels) in <top (required) > ': Uninitialized constant Capybara (nameerror)
From D:/app/coder/railsinstaller/ruby2.1.0/lib/ruby/gems/2.1.0/gems/rspe
C-core-3.5.4/lib/rspec/core/configuration.rb:758:in ' Expect_with '
From E:/05 create/code/temp/railstutorial/sample_app/spec/spec_helper.rb
: 23:in ' block in <top (required) > '

Find the answer here, and not the best answer to the site. According to the comment, which package should be the version of the change caused. The tutorial requires adding Config.include Capybara to the SPEC_HELPR.RB::D SL, which is actually added to the rails_helper.rb corresponding position.

Rails Tutorial Sample App