cocoapods升级

 

一、更新gem：sudo gem update --system

　　先要查看下源，若是源被墙了就换地址：https://gems.ruby-china.com

      1.一、删除gem源：gem sources --remove https://gems.ruby-china.org/

      1.二、修改gem源：gem sources -a https://gems.ruby-china.com

二、升级cocoapods：sudo gem install -n /usr/local/bin cocoapods --pre