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我在Rails應用程序上的ruby上使用OSX。使用RVM管理ruby。我只是這樣做：寶石更新後的錯誤 - 系統
gem update --system
我以爲這是你偶爾要做的事情。但似乎這已經打破了一些東西。當我開始我的應用程序時（我正在使用Pow），我看到這些錯誤：
Error starting application
Your Rack app raised an exception when Pow tried to run it.
NameError: uninitialized constant Gem::SourceIndex
~/.rvm/gems/ruby-1.9.3-p362/gems/bundler-1.2.3/lib/bundler/rubygems_integration.rb:187:in `stub_source_index170'
~/.rvm/gems/ruby-1.9.3-p362/gems/bundler-1.2.3/lib/bundler/rubygems_integration.rb:353:in `stub_rubygems'
~/.rvm/gems/ruby-1.9.3-p362/gems/bundler-1.2.3/lib/bundler/rubygems_integration.rb:250:in `replace_entrypoints'
~/.rvm/gems/ruby-1.9.3-p362/gems/bundler-1.2.3/lib/bundler/runtime.rb:14:in `setup'
~/.rvm/gems/ruby-1.9.3-p362/gems/bundler-1.2.3/lib/bundler.rb:116:in `setup'
~/.rvm/gems/ruby-1.9.3-p362/gems/bundler-1.2.3/lib/bundler/setup.rb:17:in `<top (required)>'
~/.rvm/rubies/ruby-1.9.3-p362/lib/ruby/site_ruby/1.9.1/rubygems/core_ext/kernel_require.rb:110:in `require'
~/.rvm/rubies/ruby-1.9.3-p362/lib/ruby/site_ruby/1.9.1/rubygems/core_ext/kernel_require.rb:110:in `rescue in require'
~/.rvm/rubies/ruby-1.9.3-p362/lib/ruby/site_ruby/1.9.1/rubygems/core_ext/kernel_require.rb:35:in `require' ~/Sites/mafticket/config/boot.rb:6:in `<top
(required)>' ~/.rvm/rubies/ruby-1.9.3-p362/lib/ruby/site_ruby/1.9.1/rubygems/core_ext/kernel_require.rb:45:in `require'
~/.rvm/rubies/ruby-1.9.3-p362/lib/ruby/site_ruby/1.9.1/rubygems/core_ext/kernel_require.rb:45:in `require' ~/Sites/mafticket/config/application.rb:1:in `<top
(required)>' ~/.rvm/rubies/ruby-1.9.3-p362/lib/ruby/site_ruby/1.9.1/rubygems/core_ext/kernel_require.rb:45:in `require'
~/.rvm/rubies/ruby-1.9.3-p362/lib/ruby/site_ruby/1.9.1/rubygems/core_ext/kernel_require.rb:45:in `require' ~/Sites/mafticket/config/environment.rb:2:in `<top
(required)>' ~/.rvm/rubies/ruby-1.9.3-p362/lib/ruby/site_ruby/1.9.1/rubygems/core_ext/kernel_require.rb:45:in `require'
~/.rvm/rubies/ruby-1.9.3-p362/lib/ruby/site_ruby/1.9.1/rubygems/core_ext/kernel_require.rb:45:in `require' ~/Sites/mafticket/config.ru:3:in `block in <main>'
~/Library/Application Support/Pow/Versions/0.4.0/node_modules/nack/lib/nack/builder.rb:4:in `instance_eval' ~/Library/Application
Support/Pow/Versions/0.4.0/node_modules/nack/lib/nack/builder.rb:4:in `initialize' ~/Sites/mafticket/config.ru:1:in `new' ~/Sites/mafticket/config.ru:1:in
`<main>' ~/Library/Application Support/Pow/Versions/0.4.0/node_modules/nack/lib/nack/server.rb:50:in `eval' ~/Library/Application
Support/Pow/Versions/0.4.0/node_modules/nack/lib/nack/server.rb:50:in `load_config' ~/Library/Application
Support/Pow/Versions/0.4.0/node_modules/nack/lib/nack/server.rb:43:in `initialize' ~/Library/Application
Support/Pow/Versions/0.4.0/node_modules/nack/lib/nack/server.rb:13:in `new' ~/Library/Application
Support/Pow/Versions/0.4.0/node_modules/nack/lib/nack/server.rb:13:in `run' ~/Library/Application
Support/Pow/Versions/0.4.0/node_modules/nack/bin/nack_worker:4:in `<main>'
我有什麼問題或者我應該重新啓動一些東西嗎？ 我可以撤消嗎？
感謝
當您使用rvm安裝ruby版本時，通常會安裝相應版本的gem executable和bundler;嘗試運行'gem -v'看看你現在有兩個版本了嗎？你可以試試'rvm install rubygems 1.4.2'，把'1.4.2'改成你想要安裝的版本 – house9 2013-03-06 16:09:46