Seems I forgot to send this email to the list ... -- Benno ---------- Forwarded message ---------- From: Benno Fünfstück <benno.fuenfstu...@gmail.com> Date: 2014-08-24 20:00 GMT+02:00 Subject: Re: [Nix-dev] GHC pointed at the wrong package To: Mateusz Kowalczyk <fuuze...@fuuzetsu.co.uk>
Yes, GHC bug #4012 [https://ghc.haskell.org/trac/ghc/ticket/4012] is about this issue. You can use `nix-store --repair-path <store path>` to re-download a specific store path from hydra. -- Benno 2014-08-23 15:15 GMT+02:00 Mateusz Kowalczyk <fuuze...@fuuzetsu.co.uk>: > On 08/23/2014 01:29 PM, Peter Simons wrote: > > Hi Mateusz, > > > > > There are problems in package regex-tdfa-1.2.0: > > > dependency "parsec-3.1.5-ca5ed8f175b69e1a085cfeaf3b95f424" doesn't > exist > > > There are problems in package regex-tdfa-rc-1.1.8.3: > > > dependency "parsec-3.1.5-ca5ed8f175b69e1a085cfeaf3b95f424" doesn't > exist > > > > the process that generates those IDs in GHC is non-deterministic. Two > > people can compile the same library with the same version of GHC on the > > same type of machine yet end up with two distinct IDs. It doesn't happen > > often, but it does happen. > > > > I'd recommend running > > > > $ nix-store --delete /nix/store/*-haskell-parsec-ghc7.8.3-3.1.5-shared > > > > on all your machines. Then the next build will download these packages > > from Hydra, and you'll have a consistent build again. Note that you may > > have to remove packages from your active profiles to make that deletion > > process succeed. > > > > I hope this helps, > > Peter > > > > It's very unfortunate to hear about the package ID stuff. Is there a bug > open? > > I managed to resolve the issue by getting rid of my parsec package as > you advised. Unluckily it was depended on all the way from > xmonad-extras. In the end I was able to remove -extras from my system as > my config only needs -contrib, reboot, garbage collect and it works. I > fear if this ever hits something xmonad directly depends on because I'll > have to get rid of my WM to fix the issue… > > Perhaps a --force-overwrite flag should be created in nix-store as long > as two hashes match? > > Thanks for help! > > -- > Mateusz K. > _______________________________________________ > nix-dev mailing list > nix-dev@lists.science.uu.nl > http://lists.science.uu.nl/mailman/listinfo/nix-dev >
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