[Nix-dev] haskellngPackages.cabal-instal wont install after "haskell-generic-builder: gratuitous ..."

[Kirill Elagin]

I don’t understand much about those GHC package IDs issues but I guess it
might be the cause here.
The typical solution is to do:

~~~~
$ nix-store --delete /nix/store/*-ghc-7.8.4
~~~~

On Fri, Apr 17, 2015 at 5:44 PM Mads Lindstrøm <mads.lindstroem at gmail.com>
wrote:

> Hi all,
>
> When I run:
>
> > nix-env -f nixpkgs-i -A haskellngPackages.cabal-install
>
> with nixpkgs at or newer than the commit:
>
> "commit 945269a48fa8b91024e18a72b485797eeca308ee
> Author: Peter Simons <simons at cryp.to>
> Date:   Wed Apr 1 14:02:46 2015 +0200
>
>     haskell-generic-builder: gratuitous cosmetic change to trigger a
> complete re-build
>
>     hydra.nixos.org serves broken binaries because of our favorite
> non-deterministic
>     package IDs in GHC bug. :-( Re-building everything from scratch seems
> like the
>     easiest way to recover."
>
> I get an error:
> ...
> Dependency ansi-terminal >=0.4.0 && <0.7: using ansi-terminal-0.6.2.1
> Dependency base >=3 && <5: using base-4.7.0.2
> Setup: The following installed packages are broken because other packages
> they
> depend on are missing. These broken packages must be rebuilt before they
> can
> be used.
> package ansi-terminal-0.6.2.1 is broken due to missing package
> base-4.7.0.2-cb23b5265b6e147094c0cd9ac819acb1,
> unix-2.7.0.1-d7de2c9293605f58486b3752d772cdb6
> builder for
> /nix/store/f6jkyn8ccsf09i9648xq6jm4gs5p6s2r-haskell-ansi-wl-pprint-0.6.7.2.drv
> failed with exit code 1
> cannot build derivation
> /nix/store/3whjh20qdadfw0n07bhna0fjlmq78jmc-haskell-test-framework-0.8.1.1.drv:
> 1 dependencies couldn't be built
> cannot build derivation
> /nix/store/wpyb7dlbi3a6glyv2npib69330mylfsz-haskell-network-2.6.0.2.drv: 1
> dependencies couldn't be built
> cannot build derivation
> /nix/store/p0agds79wrzbisxihvyvpfzfcs3h1vik-haskell-parsec-3.1.9.drv: 1
> dependencies couldn't be built
> cannot build derivation
> /nix/store/kswm7z4bpsi7rp9pws9q7mcdzhngg62y-cabal-install-1.22.2.0.drv: 1
> dependencies couldn't be built
> error: build of
> /nix/store/kswm7z4bpsi7rp9pws9q7mcdzhngg62y-cabal-install-1.22.2.0.drv
> failed
>
>
> What do I do to fix this?
>
> cat ~/.nixpkgs/config.nix:
>
>  { allowUnfree = true; allowBroken = true; }
>
>
>
> Best regards,
>
> Mads Lindstrøm
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> nix-dev at lists.science.uu.nl
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>
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