When working with gems in Rails, what does 'cannot remove Object::ClassMethods' stem from?
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by Matt
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Published on 2010-02-13T01:13:34Z
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2010/04/01
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Frequently I have run into a problem when installing gems that provides a problem like:
Does anyone know what this stems from? I've seen in it several different cases, yet still haven't learned what exactly is causing it.
$ sudo rake gems:install --trace
(in /u/app/releases/20100213003957)
** Invoke gems:install (first_time)
** Invoke gems:base (first_time)
** Execute gems:base
** Invoke environment (first_time)
** Execute environment
rake aborted!
cannot remove Object::ClassMethods
/u/app/releases/20100213003957/vendor/rails/activesupport/lib/active_support/dependencies.rb:603:in `remove_const'
/u/app/releases/20100213003957/vendor/rails/activesupport/lib/active_support/dependencies.rb:603:in `remove_constant'
/u/app/releases/20100213003957/vendor/rails/activesupport/lib/active_support/dependencies.rb:603:in `instance_eval'
/u/app/releases/20100213003957/vendor/rails/activesupport/lib/active_support/dependencies.rb:603:in `remove_constant'
/u/app/releases/20100213003957/vendor/rails/activesupport/lib/active_support/dependencies.rb:549:in `new_constants_in'
/u/app/releases/20100213003957/vendor/rails/activesupport/lib/active_support/dependencies.rb:549:in `each'
/u/app/releases/20100213003957/vendor/rails/activesupport/lib/active_support/dependencies.rb:549:in `new_constants_in'
/u/app/releases/20100213003957/vendor/rails/activesupport/lib/active_support/dependencies.rb:156:in `require'
/u/app/releases/20100213003957/vendor/rails/railties/lib/tasks/misc.rake:4
/usr/lib64/ruby/gems/1.8/gems/rake-0.8.4/lib/rake.rb:617:in `call'
/usr/lib64/ruby/gems/1.8/gems/rake-0.8.4/lib/rake.rb:617:in `execute'
/usr/lib64/ruby/gems/1.8/gems/rake-0.8.4/lib/rake.rb:612:in `each'
/usr/lib64/ruby/gems/1.8/gems/rake-0.8.4/lib/rake.rb:612:in `execute'
/usr/lib64/ruby/gems/1.8/gems/rake-0.8.4/lib/rake.rb:578:in `invoke_with_call_chain'
/usr/lib64/ruby/1.8/monitor.rb:242:in `synchronize'
/usr/lib64/ruby/gems/1.8/gems/rake-0.8.4/lib/rake.rb:571:in `invoke_with_call_chain'
/usr/lib64/ruby/gems/1.8/gems/rake-0.8.4/lib/rake.rb:564:in `invoke'
/u/app/releases/20100213003957/vendor/rails/railties/lib/tasks/gems.rake:17
/usr/lib64/ruby/gems/1.8/gems/rake-0.8.4/lib/rake.rb:617:in `call'
/usr/lib64/ruby/gems/1.8/gems/rake-0.8.4/lib/rake.rb:617:in `execute'
/usr/lib64/ruby/gems/1.8/gems/rake-0.8.4/lib/rake.rb:612:in `each'
/usr/lib64/ruby/gems/1.8/gems/rake-0.8.4/lib/rake.rb:612:in `execute'
/usr/lib64/ruby/gems/1.8/gems/rake-0.8.4/lib/rake.rb:578:in `invoke_with_call_chain'
/usr/lib64/ruby/1.8/monitor.rb:242:in `synchronize'
/usr/lib64/ruby/gems/1.8/gems/rake-0.8.4/lib/rake.rb:571:in `invoke_with_call_chain'
/usr/lib64/ruby/gems/1.8/gems/rake-0.8.4/lib/rake.rb:588:in `invoke_prerequisites'
/usr/lib64/ruby/gems/1.8/gems/rake-0.8.4/lib/rake.rb:585:in `each'
/usr/lib64/ruby/gems/1.8/gems/rake-0.8.4/lib/rake.rb:585:in `invoke_prerequisites'
/usr/lib64/ruby/gems/1.8/gems/rake-0.8.4/lib/rake.rb:577:in `invoke_with_call_chain'
/usr/lib64/ruby/1.8/monitor.rb:242:in `synchronize'
/usr/lib64/ruby/gems/1.8/gems/rake-0.8.4/lib/rake.rb:571:in `invoke_with_call_chain'
/usr/lib64/ruby/gems/1.8/gems/rake-0.8.4/lib/rake.rb:564:in `invoke'
/usr/lib64/ruby/gems/1.8/gems/rake-0.8.4/lib/rake.rb:2027:in `invoke_task'
/usr/lib64/ruby/gems/1.8/gems/rake-0.8.4/lib/rake.rb:2005:in `top_level'
/usr/lib64/ruby/gems/1.8/gems/rake-0.8.4/lib/rake.rb:2005:in `each'
/usr/lib64/ruby/gems/1.8/gems/rake-0.8.4/lib/rake.rb:2005:in `top_level'
/usr/lib64/ruby/gems/1.8/gems/rake-0.8.4/lib/rake.rb:2044:in `standard_exception_handling'
/usr/lib64/ruby/gems/1.8/gems/rake-0.8.4/lib/rake.rb:1999:in `top_level'
/usr/lib64/ruby/gems/1.8/gems/rake-0.8.4/lib/rake.rb:1977:in `run'
/usr/lib64/ruby/gems/1.8/gems/rake-0.8.4/lib/rake.rb:2044:in `standard_exception_handling'
/usr/lib64/ruby/gems/1.8/gems/rake-0.8.4/lib/rake.rb:1974:in `run'
/usr/lib64/ruby/gems/1.8/gems/rake-0.8.4/bin/rake:31
/usr/bin/rake:19:in `load'
/usr/bin/rake:19
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