使用Bundler和Rails 2.3.5时，我在迁移时得到未初始化的常量SubdomainFu

我正在使用带有rails 2.3.5的bundler，我正在尝试确保一切正常，但是当我执行“rake db：migrate --trace”时，我得到了这个

** 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:in load_missing_constant'/opt/local/lib/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:in const_missing'/ Users / node / Projects / Race-RX / config /initialsizers/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:in load'/ 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:in load'/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:in each'/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:in process'/ 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:in run'/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:in require'/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:in new_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:in call'/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:in each'/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:in invoke_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:in invoke_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:in each'/ 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:in invoke_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:in invoke_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:in invoke_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:in each'/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:in standard_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:in run'/opt/local/lib/ruby/gems/1.8/gem s / rake-0.8.7 / lib / rake.rb：2068：在 standard_exception_handling' /opt/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:1998:in 运行'/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

我不知道是什么原因引起的 . 然而，我做了，但我的

要求“rubygems”需要“bundler”Bundler.setup

在我的enviroment.rb文件中但是看起来不是问题 .