git push报错error: failed to push

$ git push -u origin masterTo git@github.com:xxx/xxx.git 
! [rejected] master -> master (fetch first)
error: failed to push some refs to 'git@github.com:xxx/xxx.git'hint:
 Updates were rejected because the remote contains work that you dohint: not have locally. 
This is usually caused by another repository pushinghint: to the same ref.
 You may want to first integrate the remote changeshint: (e.g., 'git pull ...')
 before pushing again.hint:
 See the 'Note about fast-forwards' in 'git push --help' for details.

原因： GitHub远程仓库中的README.md文件不在本地仓库中。 解决方案：

$ git pull --rebase origin master
$ git push -u origin master

参考：
http://blog.csdn.net/u011471873/article/details/51462871