If no other git process is currently running, this probably means a git process crashed in this repository earlier. Make sure no other git process is running and remove the file manually to continue.

git 사용중 아래와 같은 에러발생 시 

If no other git process is currently running, this probably means a

git process crashed in this repository earlier. Make sure no other git

process is running and remove the file manually to continue.

$rm /PROJECTDIR/.git/index.lock
$git reset