git 提交报错fatal: Unable to create

参考链接:https://www.jianshu.com/p/0bfa29983bb9

fatal: Unable to create 'xxx(用户名)/Desktop/project/xxx(项目名称)/.git/index.lock': File exists.

解决方法:

mac:   rm -f ./.git/index.lock
windows:   del .git\index.lock   (或者直接手动删除.git\index.lock)