[Haskell-cafe] Can't install snap (problem with syb)

Michael Iles Michael.Iles at ca.ibm.com
Wed Mar 28 23:17:39 CEST 2012

I'm using ghc 7.4.1 (from the Ubuntu Precise repository).

Don't know if this is relevant but "ghc-pkg list" tells me that I have:



From:	Yves Parès <yves.pares at gmail.com>
To:	Michael Iles/Ottawa/IBM at IBMCA
Cc:	haskell-cafe at haskell.org
Date:	03/28/2012 05:13 PM
Subject:	Re: [Haskell-cafe] Can't install snap (problem with syb)
Sent by:	limestrael at gmail.com

It may come from the version of GHC you're using (Cabal version is fixed
for one specific GHC version).
Which one is it?

Le 28 mars 2012 23:05, Michael Iles <Michael.Iles at ca.ibm.com> a écrit :
  I uninstalled ghc, removed my ~/.cabal directory, reinstalled ghc, then
  tried to install snap. I get:

  $ cabal install snap
  Resolving dependencies...
  Downloading syb-0.3.6...
  <command line>: cannot satisfy -package Cabal-1.14.0:
  Cabal-1.14.0-0338b6f52e6e6a56054371a110e1d79e is unusable due to missing
  or recursive dependencies:
  (use -v for more information)
  cabal: Error: some packages failed to install:
  aeson- depends on syb-0.3.6 which failed to install.
  snap- depends on syb-0.3.6 which failed to install.
  syb-0.3.6 failed during the configure step. The exception was:
  ExitFailure 1

  Any ideas?


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  Haskell-Cafe at haskell.org

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