Hi Guys, I can start my server in development mode. However, when I run rake test. I have the following errors: config/environment.rb:4: uninitialized constant Rails (NameError) from ./test/unit/../test_helper.rb:2:in `require'' from ./test/unit/../test_helper.rb:2 from test/unit/course_test.rb:1:in `require'' from test/unit/course_test.rb:1 Line 4 of environment.rb: Rails::VERSION::STRING >= ''2.3.4'' unless defined? Rails::VERSION::STRING Line 2 of test_helper.rb require File.expand_path(File.dirname(__FILE__) + "/../config/ environment") How can I solve it? Thanks, Arthur -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk+unsubscribe-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en.