Hello,

I'm having an obnoxious and weird problem while trying to include the ThinkingTank gem into my rails project. When I include gem 'thinkingtank' in my project's Gemfile I get the following error:

~/.rvm/gems/ree-1.8.7-2010.01/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:156:in `require': no such file to load -- rails (MissingSourceFile)
 from ~/.rvm/gems/ree-1.8.7-2010.01/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:156:in `require'
 from ~/.rvm/gems/ree-1.8.7-2010.01/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:521:in `new_constants_in'
 from ~/.rvm/gems/ree-1.8.7-2010.01/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:156:in `require'
 from ~/.rvm/gems/ree-1.8.7-2010.01/gems/thinkingtank-0.0.5/lib/thinkingtank.rb:1
 from ~/.rvm/gems/ree-1.8.7-2010.01/gems/bundler-1.0.7/lib/bundler/runtime.rb:64:in `require'
 from ~/.rvm/gems/ree-1.8.7-2010.01/gems/bundler-1.0.7/lib/bundler/runtime.rb:64:in `require'
 from ~/.rvm/gems/ree-1.8.7-2010.01/gems/bundler-1.0.7/lib/bundler/runtime.rb:62:in `each'
 from ~/.rvm/gems/ree-1.8.7-2010.01/gems/bundler-1.0.7/lib/bundler/runtime.rb:62:in `require'
 from ~/.rvm/gems/ree-1.8.7-2010.01/gems/bundler-1.0.7/lib/bundler/runtime.rb:51:in `each'
 from ~/.rvm/gems/ree-1.8.7-2010.01/gems/bundler-1.0.7/lib/bundler/runtime.rb:51:in `require'
 from ~/.rvm/gems/ree-1.8.7-2010.01/gems/bundler-1.0.7/lib/bundler.rb:112:in `require'
 from ~/git/myproject/config/boot.rb:121:in `load_environment'
 from ~/.rvm/gems/ree-1.8.7-2010.01/gems/rails-2.3.5/lib/initializer.rb:137:in `process'
 from ~/.rvm/gems/ree-1.8.7-2010.01/gems/rails-2.3.5/lib/initializer.rb:113:in `send'
 from ~/.rvm/gems/ree-1.8.7-2010.01/gems/rails-2.3.5/lib/initializer.rb:113:in `run'
 from ~/git/myproject/config/environment.rb:9
 from ~/.rvm/rubies/ree-1.8.7-2010.01/lib/ruby/1.8/irb/init.rb:254:in `require'
 from ~/.rvm/rubies/ree-1.8.7-2010.01/lib/ruby/1.8/irb/init.rb:254:in `load_modules'
 from ~/.rvm/rubies/ree-1.8.7-2010.01/lib/ruby/1.8/irb/init.rb:252:in `each'
 from ~/.rvm/rubies/ree-1.8.7-2010.01/lib/ruby/1.8/irb/init.rb:252:in `load_modules'
 from ~/.rvm/rubies/ree-1.8.7-2010.01/lib/ruby/1.8/irb/init.rb:21:in `setup'
 from ~/.rvm/rubies/ree-1.8.7-2010.01/lib/ruby/1.8/irb.rb:54:in `start'
 from ~/.rvm/rubies/ree-1.8.7-2010.01/bin/irb:17

The output from ruby -v is:

ruby 1.8.7 (2009-12-24 patchlevel 248) [i686-darwin10.6.0], MBARI 0x6770, Ruby Enterprise Edition 2010.01

And the output from rails -v is:

Rails 2.3.5

I've followed the basic guidelines from their documentation and from similar SA questions. But none of issues have the rails gem going missing..

And yes, we are including rails in our Gemfile =)

Thank you in advance.