Ruby ri工具将不起作用。

Question

我正在尝试使用ri工具，但无法让它们正常工作。我已经尝试过rvm docs generate-ri和rvm docs generate。这两个问题都没有解决。我使用的是Mac OSx 10.8.2版。

谢谢

$ ri String
/Users/zackwarburg/.rvm/gems/ree-1.8.7-2012.02/gems/rdoc-4.0.1/lib/rdoc/store.rb:546:in `load': undefined class/module Encoding (ArgumentError)
    from /Users/zackwarburg/.rvm/gems/ree-1.8.7-2012.02/gems/rdoc-4.0.1/lib/rdoc/store.rb:546:in `load_cache'
    from /Users/zackwarburg/.rvm/gems/ree-1.8.7-2012.02/gems/rdoc-4.0.1/lib/rdoc/store.rb:545:in `open'
    from /Users/zackwarburg/.rvm/gems/ree-1.8.7-2012.02/gems/rdoc-4.0.1/lib/rdoc/store.rb:545:in `load_cache'
    from /Users/zackwarburg/.rvm/gems/ree-1.8.7-2012.02/gems/rdoc-4.0.1/lib/rdoc/ri/driver.rb:384:in `initialize'
    from /Users/zackwarburg/.rvm/gems/ree-1.8.7-2012.02/gems/rdoc-4.0.1/lib/rdoc/ri/paths.rb:54:in `each'
    from /Users/zackwarburg/.rvm/gems/ree-1.8.7-2012.02/gems/rdoc-4.0.1/lib/rdoc/ri/driver.rb:378:in `initialize'
    from /Users/zackwarburg/.rvm/gems/ree-1.8.7-2012.02/gems/rdoc-4.0.1/lib/rdoc/ri/driver.rb:355:in `new'
    from /Users/zackwarburg/.rvm/gems/ree-1.8.7-2012.02/gems/rdoc-4.0.1/lib/rdoc/ri/driver.rb:355:in `run'
    from /Users/zackwarburg/.rvm/gems/ree-1.8.7-2012.02/gems/rdoc-4.0.1/bin/ri:12
    from /Users/zackwarburg/.rvm/gems/ree-1.8.7-2012.02/bin/ri:19:in `load'
    from /Users/zackwarburg/.rvm/gems/ree-1.8.7-2012.02/bin/ri:19
    from /Users/zackwarburg/.rvm/gems/ree-1.8.7-2012.02/bin/ruby_noexec_wrapper:14

Answer 1

看起来your version of rdoc (4.0.1)是非常新的。正如@theTinMan指出的那样，如果可能的话，你可能想把你的ruby版本提升到1.9.x或2.0.0。

或者，您可以尝试删除4.0.1并安装3.12.2，这是rubygems上最新的3.x变体。

我深入研究了源代码，确定rdoc正在尝试Marshal.load a cache file.，也许您想要清除缓存并重新运行rvm docs generate-ri，以确保缓存编码是准确的。