Я запускаю приложение Rails 2.3.5 и при запуске скрипта / сервера мне показывают следующее:

./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

Если я закомментирую строку 60 в boot.rb (Rails :: GemDependency.add_frozen_gem_path) и запустлю скрипт / сервер, я получу это:

=> 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

Так что, не совсем уверен, что делать. Надеюсь, я смогу быстро помочь. Спасибо!