[Haskell-cafe] syb-with-class problem.

[Antoine Latter]

Hi there,

The only version of template haskell which will work is the version
that the compiler was built against. So if you're working with ghc-7,
it is 2.5 or nothing.

Why doesn't HStringTemplate work with 2.5.0.0? What error were you getting?

Antoine

On Thu, Dec 16, 2010 at 6:23 AM, Magicloud Magiclouds
<magicloud.magiclouds at gmail.com> wrote:
> Hi,
>  I am trying to make happstack work in my box, which is using ghc 7.
>  While compiling HStringTemplate, which I did a little modification
> to make it work, I found that it does not work with
> template-haskell-2.5.0.0. I changed it to use
> template-haskell-2.4.0.1. This step worked fine.
>  Then I got another error:
> $ cabal install
> Resolving dependencies...
> Configuring syb-with-class-0.6.1.1...
> Preprocessing library syb-with-class-0.6.1.1...
> Building syb-with-class-0.6.1.1...
> [1 of 4] Compiling Data.Generics.SYB.WithClass.Context (
> Data/Generics/SYB/WithClass/Context.hs,
> dist/build/Data/Generics/SYB/WithClass/Context.o )
> [2 of 4] Compiling Data.Generics.SYB.WithClass.Basics (
> Data/Generics/SYB/WithClass/Basics.hs,
> dist/build/Data/Generics/SYB/WithClass/Basics.o )
> [3 of 4] Compiling Data.Generics.SYB.WithClass.Derive (
> Data/Generics/SYB/WithClass/Derive.hs,
> dist/build/Data/Generics/SYB/WithClass/Derive.o )
>
> Data/Generics/SYB/WithClass/Derive.hs:23:1:
>    Bad interface file:
> /home/magicloud/.cabal/lib/template-haskell-2.4.0.1/ghc-7.0.1/Language/Haskell/TH.hi
>        Something is amiss; requested module
> template-haskell-2.4.0.1:Language.Haskell.TH differs from name found
> in the interface file template-haskell:Language.Haskell.TH
> cabal: Error: some packages failed to install:
> HStringTemplate-0.6.3 depends on syb-with-class-0.6.1.1 which failed to
> install.
> syb-with-class-0.6.1.1 failed during the building phase. The exception was:
> ExitFailure 1
>
>  How to resolve this?
> --
> 竹密岂妨流水过
> 山高哪阻野云飞
>
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