If you can't update Rails or downgrade RubyGems, you need to require 'thread' before boot.rb runs, in three files: Rakefile, script/server, and config/environment.rb. It seems older versions of Rails relied on a require from RubyGems, giving us that delightful error message upon updating RubyGems to a newer version, which does not require thread.rb by default. More info: http://stackoverflow.com/questions/5176782/uninitialized-constant-activesupportdependenciesmutex-nameerror
[]s, Paulo On Mon, Jul 4, 2011 at 06:52, Mongskie <ricardo.em...@gmail.com> wrote: > mongskie@mongskie-os:~$ gem > /usr/bin/gem:4: undefined method `manage_gems' for Gem:Module > (NoMethodError) > > > mongskie@mongskie-os:~$ rails > /usr/lib/ruby/1.8/active_support/dependencies.rb:55: uninitialized > constant ActiveSupport::Dependencies::Mutex (NameError) > from /usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb:36:in > `gem_original_require' > from /usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb:36:in > `require' > from /usr/lib/ruby/1.8/active_support.rb:56 > from > /usr/share/rails-ruby1.8/railties/bin/../lib/rails_generator.rb: > 28:in `require' > from > /usr/share/rails-ruby1.8/railties/bin/../lib/rails_generator.rb: > 28 > from /usr/share/rails-ruby1.8/railties/bin/rails:14:in `require' > from /usr/share/rails-ruby1.8/railties/bin/rails:14 > > I always get these messages. Why is this. Pls help me. > > -- > You received this message because you are subscribed to the Google Groups > "Ruby on Rails: Talk" group. > To post to this group, send email to rubyonrails-talk@googlegroups.com. > To unsubscribe from this group, send email to > rubyonrails-talk+unsubscr...@googlegroups.com. > For more options, visit this group at > http://groups.google.com/group/rubyonrails-talk?hl=en. > > -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk@googlegroups.com. To unsubscribe from this group, send email to rubyonrails-talk+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en.
