When using Bundler and Rails 2.3.5 I get uninitialized constant SubdomainFu when migrating

I'm using bundler with rails 2.3.5 and I'm trying to make sure everything is working correctly but when I do a "rake db:migrate --trace" I get this

** Invoke db:migrate (first_time) ** Invoke environment (first_time) ** Execute environment rake aborted! uninitialized constant SubdomainFu /opt/local/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:443:inload_missing_constant' /opt/local/li开发者_StackOverflow中文版b/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:80:in const_missing' /opt/local/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:92:inconst_missing' /Users/node/Projects/Race-RX/config/initializers/subdomain_config.rb:1 /opt/local/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:145:in load_without_new_constant_marking' /opt/local/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:145:inload' /opt/local/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:521:in new_constants_in' /opt/local/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:145:inload' /opt/local/lib/ruby/gems/1.8/gems/rails-2.3.5/lib/initializer.rb:622:in load_application_initializers' /opt/local/lib/ruby/gems/1.8/gems/rails-2.3.5/lib/initializer.rb:621:ineach' /opt/local/lib/ruby/gems/1.8/gems/rails-2.3.5/lib/initializer.rb:621:in load_application_initializers' /opt/local/lib/ruby/gems/1.8/gems/rails-2.3.5/lib/initializer.rb:176:inprocess' /opt/local/lib/ruby/gems/1.8/gems/rails-2.3.5/lib/initializer.rb:113:in send' /opt/local/lib/ruby/gems/1.8/gems/rails-2.3.5/lib/initializer.rb:113:inrun' /Users/node/Projects/Race-RX/config/environment.rb:9 /opt/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in gem_original_require' /opt/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:inrequire' /opt/local/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:156:in require' /opt/local/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:521:innew_constants_in' /opt/local/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:156:in require' /opt/local/lib/ruby/gems/1.8/gems/rails-2.3.5/lib/tasks/misc.rake:4 /opt/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:636:incall' /opt/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:636:in execute' /opt/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:631:ineach' /opt/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:631:in execute' /opt/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:597:ininvoke_with_call_chain' /opt/local/lib/ruby/1.8/monitor.rb:242:in synchronize' /opt/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:590:ininvoke_with_call_chain' /opt/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:607:in invoke_prerequisites' /opt/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:604:ineach' /opt/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:604:in invoke_prerequisites' /opt/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:596:ininvoke_with_call_chain' /opt/local/lib/ruby/1.8/monitor.rb:242:in synchronize' /opt/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:590:ininvoke_with_call_chain' /opt/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:583:in invoke' /opt/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2051:ininvoke_task' /opt/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2029:in top_level' /opt/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2029:ineach' /opt/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2029:in top_level' /opt/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2068:instandard_exception_handling' /opt/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2023:in top_level' /opt/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2001:inrun' /opt/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2068:in standard_exception_handling' /opt/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:1998:inrun' /opt/local/lib/ruby/gems/1.8/gems/rake-0.8.7/bin/rake:31 /opt/local/bin/rake:19:in load' /opt/local/bin/rake:19

I don't know what could be causing this. I did however but my

require "rubygems" require "bundler" Bundler.setup

in my enviroment.rb file but that doesn't see to be the problem.

First, make sure you have run

bundle install

Then execute rake using bundle exec:

bundle exec rake db:migrate