我在我的Ubuntu 11.10 wubi上安装了ruby-1.9.3-p0,然后在rubygems上安装了Rails.
这是我的代码:
sudo ruby setup.rb
我收到了这个错误:
"/usr/local/lib/ruby/1.9.1/yaml.rb:56: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."
我安装了libyaml并重新安装了Ruby,但它仍无效.信息发生了变化,我不知道它有什么问题.