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PORake gem problem
 

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    <p>I've got this ruby on rails project and I want to do db:migrate. But the only rake option I got is "Reload rake tasks" so when I hit that, it gives me this error.</p> <pre><code>[rake --tasks] rake aborted! uninitialized constant Rake::DSL /usr/lib/ruby/1.8/rake.rb:2503:in `const_missing' /var/lib/gems/1.8/gems/rake-0.9.2/lib/rake/tasklib.rb:8 /var/lib/gems/1.8/gems/rdoc-3.9.1/lib/rdoc/task.rb:37:in `require' /var/lib/gems/1.8/gems/rdoc-3.9.1/lib/rdoc/task.rb:37 /var/lib/gems/1.8/gems/railties-3.0.9/lib/rails/tasks/documentation.rake:2:in `require' /var/lib/gems/1.8/gems/railties-3.0.9/lib/rails/tasks/documentation.rake:2 /var/lib/gems/1.8/gems/railties-3.0.9/lib/rails/tasks.rb:15:in `load' /var/lib/gems/1.8/gems/railties-3.0.9/lib/rails/tasks.rb:15 /var/lib/gems/1.8/gems/railties-3.0.9/lib/rails/tasks.rb:6:in `each' /var/lib/gems/1.8/gems/railties-3.0.9/lib/rails/tasks.rb:6 /var/lib/gems/1.8/gems/railties-3.0.9/lib/rails/application.rb:215:in `require' /var/lib/gems/1.8/gems/railties-3.0.9/lib/rails/application.rb:215:in `initialize_tasks' /var/lib/gems/1.8/gems/railties-3.0.9/lib/rails/application.rb:139:in `load_tasks' /var/lib/gems/1.8/gems/railties-3.0.9/lib/rails/application.rb:77:in `send' /var/lib/gems/1.8/gems/railties-3.0.9/lib/rails/application.rb:77:in `method_missing' /home/laptop/RubymineProjects/auth/Rakefile:7 /usr/lib/ruby/1.8/rake.rb:2383:in `load' /usr/lib/ruby/1.8/rake.rb:2383:in `raw_load_rakefile' /usr/lib/ruby/1.8/rake.rb:2017:in `load_rakefile' /usr/lib/ruby/1.8/rake.rb:2068:in `standard_exception_handling' /usr/lib/ruby/1.8/rake.rb:2016:in `load_rakefile' /usr/lib/ruby/1.8/rake.rb:2000:in `run' /usr/lib/ruby/1.8/rake.rb:2068:in `standard_exception_handling' /usr/lib/ruby/1.8/rake.rb:1998:in `run' /usr/bin/rake:28 </code></pre> <p>Thanks, Michael.</p>
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    1. COSee here for similar (perhaps the same) problem: http://stackoverflow.com/questions/6085610/ruby-on-rails-and-rake-problems-uninitialized-constant-rakedsl
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