git push异常No refs in common and none specified; doing nothing. Perhaps you should specify a branch

• git push异常具体如下（一般发生在首次推送）:

No refs in common and none specified; doing nothing. Perhaps you should specify a branch such as 'master'

• 翻译过来就是没有指定推送到哪个分支里去。
• 解决方案:使用git push origin master 可以指定推送该远程库的主分支去。