部署 在 WINDOWS 下提示如下，如何解决？
C:/Ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.4/lib/active_support/dependenc
es.rb:55: uninitialized constant ActiveSupport::Dependencies::Mutex (NameError)
from C:/Ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:36:in g
m_original_require'
from C:/Ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:36:inr
quire'
from C:/Ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.4/lib/active_supp
rt.rb:56
from C:/Ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:36:in g
m_original_require'
from C:/Ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:36:inr
quire'
from C:/Ruby/lib/ruby/gems/1.8/gems/rails-2.3.4/bin/../lib/rails_genera
or.rb:28
from C:/Ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:36:in g
m_original_require'
from C:/Ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:36:inr
quire'
from C:/Ruby/lib/ruby/gems/1.8/gems/rails-2.3.4/bin/rails:14
from C:/Ruby/bin/rails:19:in `load'
from C:/Ruby/bin/rails:19
转自 stackoverflow
This is an incompatibility between Rails 2.3.8 and recent versions of RubyGems. Upgrade to the latest 2.3 version (2.3.11 as of today).