Couldn't set refs/heads/master when commit

I was able to commit fine yesterday. But today (I didn’t change anything), when I commit:

$ git add config.h
$ git commit -m "Update config.h to reset the values"
error: Couldn't set refs/heads/master
fatal: cannot update HEAD ref

I know that this error may happen also during pull or push. But I haven’t found a solution to fix it when committing.

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        logallrefupdates = true
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        url = git@SOME_URL
        fetch = +refs/heads/*:refs/remotes/origin/*
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        remote = origin
        merge = refs/heads/master

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  • 3 Solutions collect form web for “Couldn't set refs/heads/master when commit”

    It seems you have lost your HEAD, so you will have to recreate it. You can do that using this.

    echo ref: refs/heads/master >.git/HEAD

    This will create a HEAD file in your .git folder. That should solve your problem.

    Also, try the git fsck command. It verifies the connectivity and validity of the objects in the database.

    git fsck --lost-found

    Use this to scan for unreachable objects. It will write dangling objects into .git/lost-found/commit/ or .git/lost-found/other/, depending on type. If the object is a blob, the contents are written into the file, rather than its object name.

    This may help others; I waited about a minute and simply retried the commit and … it worked.

    Check your .git folder for file HEAD.

    $ cat .git/HEAD
    ref: refs/heads/master

    If this does not exist, create it.

    $ echo "ref: refs/Heads/master" > .git/HEAD
    Git Baby is a git and github fan, let's start git clone.