There were theese lines in the end of ghc-pkg output log: The following packages are broken, either because they have a problem listed above, or because they depend on a broken package. pipes-core-0.1.0 pipes-core-0.1.0
And yes, I tried to load Control.Pipes in ghci. It worked not. Now I solved this problem with manual `categories` install. I suppose, you haven't noticed any problems, so the question is partly closed (I have to do pull request to nixpkgs with appropriate patch) 2012/8/15 Andres Loeh <[email protected]> > Thanks, haven't tried it yet, but ... > > > 7. nixpkgs$ ghc-pkg check > > ... the output of "ghc-pkg check" for the wrapped GHC is possibly a > bit suspicious. Have you tried > > $ ghci -package pipes-core > > $ ghci -package categories > > Do these work or not? > > Cheers, > Andres >
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