我在执行git add.操作时会出现如下问题
fatal: Unable to create '/Users/dllo/Desktop/blog/.git/index.lock': File exists.
Another git process seems to be running in this repository, e.g.
an editor opened by 'git commit'. Please make sure all processes
are terminated then try again. If it still fails, a git process
may have crashed in this repository earlier:
remove the file manually to continue
百度说让把index.lock删除就可以,可是我删除后执行git add.之后index.lock文件又出现了,该怎么办