如何解决error: failed to push some refs to 'xxx(远程库)'

在使用 Android Studio 对源代码进行push到码云时可出错，报错如下:
15:55:01.129: [fuwandai] git -c core.quotepath=false push --progress --porcelain origin refs/heads/master:master --set-upstream
error: failed to push some refs to 'https://gitee.com/dapanjimianpaigumian/FirstProject.git'
To https://gitee.com/dapanjimianpaigumian/FirstProject.git ! refs/heads/master:refs/heads/master [rejected] (fetch first)
hint: Updates were rejected because the remote contains work that you do
hint: not have locally. This is usually caused by another repository pushing
Done
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.
出现错误的主要原因是oschina中的README.md文件不在本地代码目录中



可以通过如下命令进行代码合并【注：pull=fetch+merge]git pull --rebase origin master



执行上面代码后可以看到本地代码库中多了README.md文件



此时再执行语句 git push -u origin master即可完成代码上传到oschina