ruby安装gem的时候报错 报错信息：

ERROR: Could not find a valid gem ‘bundler’ (>= 0) in any repository

解决方法：

  1. 排查本地sources

    $ gem sources ** CURRENT SOURCES **

    http://rubygems.org/

If not, you should be able to add it with

$ gem sources --add http://rubygems.org/
http://rubygems.org/ added to sources
  1. 安装需要资源， 内网的话记住添加代理： gem install xxx --http-proxy=http://user:password@server