hexo部署命令报错

INFO  Deploying: git
INFO  Clearing .deploy_git folder...
INFO  Copying files from public folder...
INFO  Copying files from extend dirs...
fatal: Unable to create '/drives/c/blog/.deploy_git/.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.
FATAL Something's wrong. Maybe you can find the solution here: https://hexo.io/docs/troubleshooting.html
Error: Spawn failed
    at ChildProcess.<anonymous> (C:\blog\node_modules\hexo-util\lib\spawn.js:51:21)
    at ChildProcess.emit (events.js:310:20)
    at ChildProcess.cp.emit (C:\blog\node_modules\cross-spawn\lib\enoent.js:34:29)
    at Process.ChildProcess._handle.onexit (internal/child_process.js:275:12)

delete .deploy_git directory：$ rm -rf .deploy_git #delete
re-deploy：$ hexo d -g #重新部署