未定義的方法`source_index」的寶石：模塊（NoMethodError）

Question

我運行一個Rails 2.3.5應用和一旦運行腳本/服務器我示出以下內容：

./script/../config/../vendor/rails/railties/lib/rails/gem_dependency.rb:21:in `add_frozen_gem_path': undefined method `source_index' for Gem:Module (NoMethodError) 
    from ./script/../config/boot.rb:60:in `load_initializer' 
    from ./script/../config/boot.rb:44:in `run' 
    from ./script/../config/boot.rb:17:in `boot!' 
    from ./script/../config/boot.rb:123 
    from script/server:2:in `require' 
    from script/server:2 

如果我註釋掉線60在的boot.rb（滑軌:: GemDependency.add_frozen_gem_path）和運行腳本/服務器，我得到這個：

=> Booting WEBrick 
=> Rails 2.3.5 application starting on http://0.0.0.0:3000 
./script/../config/../vendor/rails/railties/lib/rails/gem_dependency.rb:21:in `add_frozen_gem_path': undefined method `source_index' for Gem:Module (NoMethodError) 
    from ./script/../config/../vendor/rails/railties/lib/initializer.rb:298:in `add_gem_load_paths' 
    from ./script/../config/../vendor/rails/railties/lib/initializer.rb:132:in `process' 
    from ./script/../config/../vendor/rails/railties/lib/initializer.rb:113:in `send' 
    from ./script/../config/../vendor/rails/railties/lib/initializer.rb:113:in `run' 
    from /home/developer/bigpink/config/environment.rb:13 
    from /home/developer/bigpink/vendor/rails/activesupport/lib/active_support/dependencies.rb:156:in `require' 
    from /home/developer/bigpink/vendor/rails/activesupport/lib/active_support/dependencies.rb:156:in `require' 
    from /home/developer/bigpink/vendor/rails/activesupport/lib/active_support/dependencies.rb:521:in `new_constants_in' 
    from /home/developer/bigpink/vendor/rails/activesupport/lib/active_support/dependencies.rb:156:in `require' 
    from /home/developer/bigpink/vendor/rails/railties/lib/commands/server.rb:84 
    from script/server:3:in `require' 
    from script/server:3 

所以，真的不知道該怎麼做。希望我能得到一些快速的幫助。謝謝！

Answer 1

我剛剛嘗試將舊版Rails應用程序從REE 1.8.7升級到1.9.3-p385時遇到了此問題。奇怪的是，Ruby 1.9.3-p327工作得很好。結果是ruby-1.9.3-p385爲我安裝了RubyGems 2.0.2版，1.9.3-p327安裝了RubyGems v1.8.23。

Gem.source_index已被棄用了一段時間，但由於Rails 2.3沒有獲得除關鍵安全補丁以外的任何更新，因此永遠不會得到修復。 RubyGems v2.0最終刪除了該方法。降級到2.0.0之前的任何rubygems版本，比如1.8.25版本，以便現在恢復功能。您可以使用gem update --system 1.8.25獲得兼容版本。

作爲一個非常重要的部分，Rails 2.3.5需要更新到最低2.3.17。存在嚴重的安全漏洞，可能會導致一些非常惡劣的攻擊。從長遠來看，升級到3.x需要被認爲是一個非常強大的需求。

Answer 2

幫我：http://djellemah.com/blog/2013/02/27/rails-23-with-ruby-20/

我gem update --system 1.8.25，這可能不需要對你的情況做了這個組合。

Answer 3

RVM的用戶，

rvm install rubygems 1.8.2 --force