[Nix-dev] [Hackage] How to install Hackage package, not presented in nixpkgs, locally?

[Daniel Hlynskyi]

Oh! Realy! Kind of magic.

After rechecking found, that installing `pipes-core` package didn't install
`categories` package, .nix file for which I added also. When I installed
`categories`, it worked. Is it a bug? `Categories` package is mentioned in
dependencies in pipes-core/default.nix

2012/8/15 Andres Loeh <ksnix at andres-loeh.de>

> > But dependency hell was not gone.
> >
> > pipes-core-0.1.0: dependency
> "base-4.5.0.0-f76ceb9607ba9bd4fcfb9c7b92d8cfe1"
> > doesn't exist (ignoring)
> > pipes-core-0.1.0: dependency
> > "categories-1.0.3-e9ab00168a7d0fdacafd64b31a5e1100" doesn't exist
> (ignoring)
> > pipes-core-0.1.0: dependency
> > "lifted-base-0.1.1-51e1520336adbfccd889e58e684c89a1" doesn't exist
> > (ignoring)
> > pipes-core-0.1.0: dependency
> > "monad-control-0.3.1.3-a94da65cc1c2dcd38097f790cd885593" doesn't exist
> > (ignoring)
> > pipes-core-0.1.0: dependency
> > "transformers-0.3.0.0-f2303dfef836518cc2f6901210442e10" doesn't exist
> > (ignoring)
> > pipes-core-0.1.0: dependency
> "void-0.5.6-2a27beac32f0c526d6cb6dc79bccfbd9"
> > doesn't exist (ignoring)
> >
> > What I don't understand, are the hashes. Where are they from and how to
> > solve theese dependency problems?
>
> All these are just warnings "hence the (ignoring)" and completely
> normal and harmless. You'll notice you get similar messages for other
> Haskell packages as well.
>
> Cheers,
>   Andres
>
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