rake gems:install - fails on osx

foo:monkey-mouth lex$ rake gems:install --trace (in /Users/lex/Sites/monkey-mouth) Invoke gems:install (first_time) Invoke gems:base (first_time) Execute gems:base Invoke environment (first_time) ** Execute environment rake aborted! super: no superclass method require' /opt/local/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/active_support/dependencies.rb:153:inrequire' /opt/local/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/active_support/dependencies.rb:521:in new_constants_in' /opt/local/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/active_support/dependencies.rb:153:inrequire' /opt/local/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/active_support/core_ext/module/attribute_accessors.rb:36:in to_proc' /opt/local/lib/ruby/gems/1.8/gems/haml-2.1.0/lib/haml.rb:1040:ineach' /opt/local/lib/ruby/gems/1.8/gems/haml-2.1.0/lib/haml.rb:1040:in init_rails' /Users/lex/Sites/monkey-mouth/vendor/plugins/haml/init.rb:7:inevaluate_init_rb' /opt/local/lib/ruby/gems/1.8/gems/rails-2.2.2/lib/rails/plugin.rb:103:in evaluate_init_rb' /opt/local/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/active_support/core_ext/kernel/reporting.rb:11:insilence_warnings' /opt/local/lib/ruby/gems/1.8/gems/rails-2.2.2/lib/rails/plugin.rb:99:in evaluate_init_rb' /opt/local/lib/ruby/gems/1.8/gems/rails-2.2.2/lib/rails/plugin.rb:44:inload' /Users/lex/Sites/monkey-mouth/config/../vendor/plugins/engines/lib/engines/plugin.rb:77:in load' /opt/local/lib/ruby/gems/1.8/gems/rails-2.2.2/lib/rails/plugin/loader.rb:33:inload_plugins' /opt/local/lib/ruby/gems/1.8/gems/rails-2.2.2/lib/rails/plugin/loader.rb:32:in each' /opt/local/lib/ruby/gems/1.8/gems/rails-2.2.2/lib/rails/plugin/loader.rb:32:inload_plugins' /opt/local/lib/ruby/gems/1.8/gems/rails-2.2.2/lib/initializer.rb:323:in load_plugins' /opt/local/lib/ruby/gems/1.8/gems/rails-2.2.2/lib/initializer.rb:160:inprocess' /opt/local/lib/ruby/gems/1.8/gems/rails-2.2.2/lib/initializer.rb:112:in send' /opt/local/lib/ruby/gems/1.8/gems/rails-2.2.2/lib/initializer.rb:112:inrun' /Users/lex/Sites/monkey-mouth/config/environment.rb:27 /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-2.2.2/lib/active_support/dependencies.rb:153:in require' /opt/local/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/active_support/dependencies.rb:521:innew_constants_in' /opt/local/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/active_support/dependencies.rb:153:in require' /opt/local/lib/ruby/gems/1.8/gems/rails-2.2.2/lib/tasks/misc.rake:3 /opt/local/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:617:incall' /opt/local/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:617:in execute' /opt/local/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:612:ineach' /opt/local/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:612:in execute' /opt/local/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:578:ininvoke_with_call_chain' /opt/local/lib/ruby/1.8/monitor.rb:242:in synchronize' /opt/local/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:571:ininvoke_with_call_chain' /opt/local/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:564:in invoke' /opt/local/lib/ruby/gems/1.8/gems/rails-2.2.2/lib/tasks/gems.rake:21 /opt/local/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:617:incall' /opt/local/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:617:in execute' /opt/local/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:612:ineach' /opt/local/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:612:in execute' /opt/local/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:578:ininvoke_with_call_chain' /opt/local/lib/ruby/1.8/monitor.rb:242:in synchronize' /opt/local/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:571:ininvoke_with_call_chain' /opt/local/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:588:in invoke_prerequisites' /opt/local/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:585:ineach' /opt/local/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:585:in invoke_prerequisites' /opt/local/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:577:ininvoke_with_call_chain' /opt/local/lib/ruby/1.8/monitor.rb:242:in synchronize' /opt/local/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:571:ininvoke_with_call_chain' /opt/local/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:564:in invoke' /opt/local/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:2019:ininvoke_task' /opt/local/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:1997:in top_level' /opt/local/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:1997:ineach' /opt/local/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:1997:in top_level' /opt/local/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:2036:instandard_exception_handling' /opt/local/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:1991:in top_level' /opt/local/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:1970:inrun' /opt/local/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:2036:in standard_exception_handling' /opt/local/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:1967:inrun' /opt/local/lib/ruby/gems/1.8/gems/rake-0.8.3/bin/rake:31 /opt/local/bin/rake:19:in load' /opt/local/bin/rake:19 foo:monkey-mouth lex$