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BuildWrapper / GHC 7.4.1 build failure

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2012-02-03
2012-12-06
  • Michael Jones
    Michael Jones
    2012-02-03

    building the git source results in:

    Compiling Language.Haskell.BuildWrapper.Find ( src/Language/Haskell/BuildWrapper/Find.hs, dist/build/Language/Haskell/BuildWrapper/Find.o )

    src/Language/Haskell/BuildWrapper/Find.hs:36:28:
        Module `TypeRep' does not export `Pred(..)'
    cabal: Error: some packages failed to install:
    buildwrapper-0.4.2 failed during the building phase. The exception was:
    ExitFailure 1

     
  • Michael Jones
    Michael Jones
    2012-02-07

    That is indeed strange.  I'll revisit this in 7.4.1 using a completely clean install once we get 7.2.x building everything and working.

     

  • Anonymous
    2012-02-25

    I'm getting errors cabal-installing both buildwrapper and scion-browser with GHC 7.4.1.

    buildwrapper output is the same as reported on this thread:
    src\Language\Haskell\BuildWrapper\Find.hs:36:28:
        Module `TypeRep' does not export `Pred(..)'

    Meanwhile, the scion-browser output is:
    cabal: dependencies conflict: ghc-7.4.1 requires filepath ==1.3.0.0 however
    filepath-1.3.0.0 was excluded because scion-browser-0.2.6 requires filepath ==1.2.*

    Is this a known situation? Any advice would be most appreciated.

    Best regards,
    - Matias

     
  • JP Moresmau
    JP Moresmau
    2012-02-25

    Use the latest code from github. It should now compile with 7.4.1