fatal: unable to access 'https://github.com/.../.git': Could not resolve host: g

• pod install的时候如下报错:

fatal: unable to access 'https://github.com/.../.git': Could not resolve host: github.com

• 解决方法：
• 打开终端分别执行如下命令

git config --global --unset http.proxy 
git config --global --unset https.proxy