fatal: Unable to create 'xxx/.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.
我已经尝试将仓库删除，重新 clone ，在不同的机器上，这个问题还是仿佛出现，每次删除掉 index.lock 提交成功，并 pull/push 后，下次使用 vscode 编辑代码后，再次 commit,又会出现一样的错误。
