git push origin master出现错误：公钥缺失

输入命令行 $ git push origin master出现下面的错误提示：

$ git push origin master
Permission denied (publickey).
fatal: Could not read from remote repository.

Please make sure you have the correct access rights
and the repository exists.

解决：
  重新设置ssh公钥

$ ssh-keygen -t rsa -C "YOUR EMAIL"

复制文件 ssh->id_rsa.pub的内容，粘贴到github New SSH Key中。

重新提交即可。