I had this error with git the following untracked working tree files would be overwritten by merge: :get when trying to pull updates from origin.
I had no idea where this :get file is so I ignored it and went ahead to do this https://stackoverflow.com/a/8888015/3893713, which finally updated by the branch that was causing the problem to match with the one at origin.
However I still have this file as an unstaged file (checked with git status), but I don't think it even exists. I can't see it in Windows explorer even with 'show hidden files' enabled. Tried using del in cmd but to no avail.
