push 出现问题 master -> master (fetch first)

gzfzdeMacBook-Air:xianqiao gzfz$ git push origin master
To https://git.oschina.net/guijildl/xianqiao.git
 ! [rejected]        master -> master (fetch first)
error: failed to push some refs to 'https://git.oschina.net/guijildl/xianqiao.git'
hint: Updates were rejected because the remote contains work that you do
hint: not have locally. This is usually caused by another repository pushing
hint: to the same ref. You may want to first integrate the remote changes
hint: (e.g., 'git pull ...') before pushing again.

hint: See the 'Note about fast-forwards' in 'git push --help' for details.

解决方法：

git push origin master -f