Re: [Rails] ruby and rails wont work even they're already installed

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 t

Re: [Rails] ruby and rails wont work even they're already installed

I can only advise you to use rvm (type this in Google ) and update your Ruby and rails to newest version. On 4 Jul 2011 12:39, "Mongskie" wrote: > mongskie@mongskie-os:~$ gem > /usr/bin/gem:4: undefined method `manage_gems' for Gem:Module > (NoMethodError) > > > mongskie@mongskie-os:~$ rails > /us

[Rails] ruby and rails wont work even they're already installed

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/