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POuninitialized constant ActiveSupport::Dependencies::Mutex
 

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    <p>I try to run a working rails project from OSX to Debian. I use on both systems RVM and created the same gemsets and rvmrc for the project. On Debian I installed only ruby with rvm no system installation of ruby exists.</p> <p>when I jump in the project folder rvm is switching to version 1.8.7 and is using the project gemset everything looks fine.</p> <p>But when I fire up a rake -T I get this error:</p> <pre><code>$ rake -T --trace (in /home/i/project/src) rake aborted! uninitialized constant ActiveSupport::Dependencies::Mutex /home/i/.rvm/gems/ruby-1.8.7-p249@project/gems/rake-0.8.7/lib/rake.rb:2503:in `const_missing' /home/i/.rvm/gems/ruby-1.8.7-p249@project/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:55 /home/i/.rvm/rubies/ruby-1.8.7-p249/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:36:in `gem_original_require' /home/i/.rvm/rubies/ruby-1.8.7-p249/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:36:in `require' /home/i/.rvm/gems/ruby-1.8.7-p249@project/gems/activesupport-2.3.5/lib/active_support.rb:56 /home/i/.rvm/rubies/ruby-1.8.7-p249/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:36:in `gem_original_require' /home/i/.rvm/rubies/ruby-1.8.7-p249/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:36:in `require' /home/i/.rvm/gems/ruby-1.8.7-p249@project/gems/rails-2.3.5/lib/tasks/misc.rake:18 /home/i/.rvm/gems/ruby-1.8.7-p249@project/gems/rails-2.3.5/lib/tasks/rails.rb:4:in `load' /home/i/.rvm/gems/ruby-1.8.7-p249@project/gems/rails-2.3.5/lib/tasks/rails.rb:4 /home/i/.rvm/gems/ruby-1.8.7-p249@project/gems/rails-2.3.5/lib/tasks/rails.rb:4:in `each' /home/i/.rvm/gems/ruby-1.8.7-p249@project/gems/rails-2.3.5/lib/tasks/rails.rb:4 /home/i/.rvm/rubies/ruby-1.8.7-p249/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:36:in `gem_original_require' /home/i/.rvm/rubies/ruby-1.8.7-p249/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:36:in `require' /home/i/ws/project/src/Rakefile:10 /home/i/.rvm/gems/ruby-1.8.7-p249@project/gems/rake-0.8.7/lib/rake.rb:2383:in `load' /home/i/.rvm/gems/ruby-1.8.7-p249@project/gems/rake-0.8.7/lib/rake.rb:2383:in `raw_load_rakefile' /home/i/.rvm/gems/ruby-1.8.7-p249@project/gems/rake-0.8.7/lib/rake.rb:2017:in `load_rakefile' / home/i/.rvm/gems/ruby-1.8.7-p249@project/gems/rake-0.8.7/lib/rake.rb:2068:in `standard_exception_handling' /home/i/.rvm/gems/ruby-1.8.7-p249@project/gems/rake-0.8.7/lib/rake.rb:2016:in `load_rakefile' /home/i/.rvm/gems/ruby-1.8.7-p249@project/gems/rake-0.8.7/lib/rake.rb:2000:in `run' /home/i/.rvm/gems/ruby-1.8.7-p249@project/gems/rake-0.8.7/lib/rake.rb:2068:in `standard_exception_handling' /home/i/.rvm/gems/ruby-1.8.7-p249@project/gems/rake-0.8.7/lib/rake.rb:1998:in `run' /home/i/.rvm/gems/ruby-1.8.7-p249@project/gems/rake-0.8.7/bin/rake:31 /home/i/.rvm/gems/ruby-1.8.7-p249@project/bin/rake:19:in `load' /home/i/.rvm/gems/ruby-1.8.7-p249@project/bin/rake:19 </code></pre>
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    1. COpossible duplicate of [Uninitialized constant ActiveSupport::Dependencies::Mutex (NameError)](http://stackoverflow.com/questions/5176782/uninitialized-constant-activesupportdependenciesmutex-nameerror)
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