尝试使用RVM安装Ruby 2.0.0时安装rubygems失败

Question

我正在处理我的第一个Rails应用程序。我刚刚从Rails 3.2.13更新到Rails 4，现在我试图安装ruby 2.0.0，但是我整天都陷入了同样的错误。我在这里发现了几个关于SO和其他地方的问题，其中许多都有可接受的答案，但根本没有任何解决方案适用于我。

最后，我最终完全删除了所有ruby版本并完全删除rvm，但即使试图从头重新安装也会导致相同的错误。我在OSX 10.8.4上。

错误：

Extracting rubygems-2.0.6 ... 
Removing old Rubygems files... 
Installing rubygems-2.0.6 for ruby-2.0.0-p247...................... 
Error running 'env GEM_PATH=/Users/arielpontes/.rvm/gems/ruby-2.0.0-p247:/Users/arielpontes/.rvm/gems/ruby-2.0.0-p247@global:/Users/arielpontes/.rvm/gems/ruby-2.0.0-p247:/Users/arielpontes/.rvm/gems/ruby-2.0.0-p247@global GEM_HOME=/Users/arielpontes/.rvm/gems/ruby-2.0.0-p247 /Users/arielpontes/.rvm/rubies/ruby-2.0.0-p247/bin/ruby -d /Users/arielpontes/.rvm/src/rubygems-2.0.6/setup.rb', 
please read /Users/arielpontes/.rvm/log/ruby-2.0.0-p247/1375132582_rubygems.install.log 
Installation of rubygems did not complete successfully. 
Saving wrappers to '/Users/arielpontes/.rvm/wrappers/ruby-2.0.0-p247'... 

日志：

[2013-07-29 18:23:54] /Users/arielpontes/.rvm/rubies/ruby-2.0.0-p247/bin/ruby 
Exception `LoadError' at /Users/arielpontes/.rvm/rubies/ruby-2.0.0-p247/lib/ruby/2.0.0/rubygems.rb:1082 - cannot load such file -- rubygems/defaults/operating_system 
Exception `LoadError' at /Users/arielpontes/.rvm/rubies/ruby-2.0.0-p247/lib/ruby/2.0.0/rubygems.rb:1091 - cannot load such file -- rubygems/defaults/ruby 
/Users/arielpontes/.rvm/rubies/ruby-2.0.0-p247/lib/ruby/2.0.0/yaml.rb:4:in `<top (required)>': 
It seems your ruby installation is missing psych (for YAML output). 
To eliminate this warning, please install libyaml and reinstall your ruby. 
/Users/arielpontes/.rvm/src/rubygems-2.0.6/lib/rubygems/core_ext/kernel_require.rb:51:in `require': dlopen(/Users/arielpontes/.rvm/rubies/ruby-2.0.0-p247/lib/ruby/2.0.0/x86_64-darwin12.4.0/psych.bundle, 9): Library not loaded: /usr/local/opt/libyaml/lib/libyaml-0.2.dylib (LoadError) 
    Referenced from: /Users/arielpontes/.rvm/rubies/ruby-2.0.0-p247/lib/ruby/2.0.0/x86_64-darwin12.4.0/psych.bundle 
    Reason: image not found - /Users/arielpontes/.rvm/rubies/ruby-2.0.0-p247/lib/ruby/2.0.0/x86_64-darwin12.4.0/psych.bundle 
    from /Users/arielpontes/.rvm/src/rubygems-2.0.6/lib/rubygems/core_ext/kernel_require.rb:51:in `require' 
    from /Users/arielpontes/.rvm/rubies/ruby-2.0.0-p247/lib/ruby/2.0.0/psych.rb:1:in `<top (required)>' 
    from /Users/arielpontes/.rvm/src/rubygems-2.0.6/lib/rubygems/core_ext/kernel_require.rb:51:in `require' 
    from /Users/arielpontes/.rvm/src/rubygems-2.0.6/lib/rubygems/core_ext/kernel_require.rb:51:in `require' 
    from /Users/arielpontes/.rvm/rubies/ruby-2.0.0-p247/lib/ruby/2.0.0/yaml.rb:5:in `<top (required)>' 
    from /Users/arielpontes/.rvm/src/rubygems-2.0.6/lib/rubygems/core_ext/kernel_require.rb:51:in `require' 
    from /Users/arielpontes/.rvm/src/rubygems-2.0.6/lib/rubygems/core_ext/kernel_require.rb:51:in `require' 
    from /Users/arielpontes/.rvm/src/rubygems-2.0.6/lib/rubygems.rb:600:in `load_yaml' 
    from /Users/arielpontes/.rvm/src/rubygems-2.0.6/lib/rubygems/config_file.rb:313:in `load_file' 
    from /Users/arielpontes/.rvm/src/rubygems-2.0.6/lib/rubygems/config_file.rb:190:in `initialize' 
    from /Users/arielpontes/.rvm/src/rubygems-2.0.6/lib/rubygems/gem_runner.rb:66:in `new' 
    from /Users/arielpontes/.rvm/src/rubygems-2.0.6/lib/rubygems/gem_runner.rb:66:in `do_configuration' 
    from /Users/arielpontes/.rvm/src/rubygems-2.0.6/lib/rubygems/gem_runner.rb:46:in `run' 
    from setup.rb:45:in `<main>' 

任何人有什么我可以做些什么来解决这个问题的任何想法？我试过解决方案this question但无济于事。谢谢。

Answer 1

那么，我终于设法修复它！对不起，如果我结束了污染SO。无论如何，我会回复我的问题，以防有人遇到类似的问题，并在未来结束。

原来，根据Homebrew的说法，我搞错了安装libyaml“已安装但未连接”。在尝试this solution后我想通了。所以我卸载libyaml并用sudo rm -rf杀死它并重新安装。我碰到了this problem，但接受的答案解决了它。在此之后，我使用稳定的红宝石从头开始安装RVM，并且它终于奏效了！