[Nix-dev] extension error?

[Charles Strahan]

Oops, minor correction (s/nixpkgs/nixos):

    sudo nix-channel --remove nixos
    sudo nix-channel --add https://nixos.org/channels/nixos-unstable nixos
    # ...or...
    sudo nix-channel --add https://nixos.org/channels/nixos-14.12 nixos

-Charles

On Mon, Dec 29, 2014 at 1:22 AM, Charles Strahan <
charles.c.strahan at gmail.com> wrote:

> Hi Tim,
>
> It looks like you're using the latest from the stabe 14.04 release, which
> doesn't support the `extension` argument:
>
>
> https://github.com/NixOS/nixpkgs/blob/release-14.04/pkgs/top-level/haskell-defaults.nix#L230-237
>
> Compare that to master:
>
>
> https://github.com/NixOS/nixpkgs/blob/master/pkgs/top-level/haskell-defaults.nix#L148-155
>
> You can see your current channel running:
>
>     sudo nix-channel --list
>
> I would suggest updating your nixos channel to nixos-14.12 or
> nixos-unstable:
>
>     sudo nix-channel --remove nixos
>     sudo nix-channel --add https://nixos.org/channels/nixpkgs-unstable
> nixos
>     # ...or...
>     sudo nix-channel --add https://nixos.org/channels/nixpkgs-14.12 nixos
>
> (The above commands are assuming that you're using NixOS, as opposed to
> using Nix standalone.)
>
> Let me know if that helps!
>
> -Charles
>
> On Mon, Dec 29, 2014 at 12:48 AM, Tim Sears <tim at timsears.com> wrote:
>
>> Was trying this example at
>> http://wiki.ocharles.org.uk/Nix#how-do-i-use-cabal2nix-for-local-projects
>> and I when I enter nix-shell I an error
>>
>> $ nix-shell
>> error: anonymous function at
>> /nix/var/nix/profiles/per-user/root/channels/nixos/nixpkgs/pkgs/top-level/haskell-defaults.nix:230:5
>> called with unexpected argument `extension', at
>> /nix/var/nix/profiles/per-user/root/channels/nixos/nixpkgs/lib/customisation.nix:58
>>
>> Anybody seen this error or have any insight to share?
>>
>> Thanks,
>> Tim
>>
>>
>> _______________________________________________
>> nix-dev mailing list
>> nix-dev at lists.science.uu.nl
>> http://lists.science.uu.nl/mailman/listinfo/nix-dev
>>
>>
>
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