git上传文件夹报错： ! [rejected] master -> master (fetch first) error: failed to push some refs to 'https://github.com/taminachen/rjxm.git' hint: Updates were rejected because the remote contains work

使用git上传本地文件夹到远程仓库，使用如下命令：git push -u origin master时报错使用git上传本地文件夹到远程仓库，使用如下命令：git push -u origin mas