Mac升级后pod失效报错pod: command not fo

终端执行命令：就可以了

sudo gem install -n /usr/local/bin cocoapods

为了安全起见，执行命令 卸载原有的CocoaPod

"sudo gem uninstall cocoapods"

执行命令来重新安装cocoapod

"sudo gem install -n /usr/local/bin cocoapods"