Ruby-ri工具将不起作用

Question

我正在尝试使用ri工具，但无法使它们正常工作。我试过rvm docs generate和rvm docs generate-ri。两者都没有解决这个问题。我使用的是10.8.2版本的Mac操作系统。

感谢

$ 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

看起来您的rdoc（4.0.1）版本非常新。正如@TinMan所指出的，如果可能的话，您可能希望将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，以确定rdoc正在尝试Marshal.load缓存文件。也许您想清除缓存并重新运行rvm docs generate-ri，以确保缓存编码是准确的。