I usually encounter this when there has once been a branch called
"wip/rae" (so .git would have a *file* wip/rae), but now there's a
branch called "wip/rae/remove-tc-dep", so "wip/rae" should be a
directory, but it's already in .git as a file! I think "git remote
prune" fixes this, but I can't entirely recall.

On Wed, Oct 23, 2019 at 5:22 PM Simon Peyton Jones via ghc-devs
<ghc-devs@haskell.org> wrote:
>
> Aieee!   All my GHC repos are failing with this.  As a result I can’t pull.  What should I do?   Thanks!
>
> Simon
>
>
>
> git pull
>
> error: cannot lock ref 'refs/remotes/origin/wip/rae/remove-tc-dep': 'refs/remotes/origin/wip/rae' exists; cannot create 'refs/remotes/origin/wip/rae/remove-tc-dep'
>
> From gitlab.haskell.org:ghc/ghc
>
> ! [new branch]            wip/rae/remove-tc-dep    -> origin/wip/rae/remove-tc-dep  (unable to update local ref)
>
> error: cannot lock ref 'refs/remotes/origin/wip/rae/split-up-modules': 'refs/remotes/origin/wip/rae' exists; cannot create 'refs/remotes/origin/wip/rae/split-up-modules'
>
> ! [new branch]            wip/rae/split-up-modules -> origin/wip/rae/split-up-modules  (unable to update local ref)
>
> simonpj@MSRC-3645512:~/code/HEAD-2$
>
> _______________________________________________
> ghc-devs mailing list
> ghc-devs@haskell.org
> http://mail.haskell.org/cgi-bin/mailman/listinfo/ghc-devs
_______________________________________________
ghc-devs mailing list
ghc-devs@haskell.org
http://mail.haskell.org/cgi-bin/mailman/listinfo/ghc-devs