[Haskell] cabal conflicting rules

[Thomas Friedrich]

You probably have some packages of yours installed as user and some
others globally.  Have a look at:

http://www.haskell.org/cabal/FAQ.html#dependencies-conflict

I recommend that as soon as you have a running Haskell Platform to
always install new packages with cabal install ... --user

Thomas



Am Sonntag, den 23.10.2011, 13:27 +0200 schrieb Claudio Nieder:
> Hi,
> 
> I just get this output from cabal:
> 
>  cabal install leksah
> Resolving dependencies...
> cabal: dependencies conflict: ghc-7.0.4 requires array ==0.3.0.3 however
> array-0.3.0.3 was excluded because ghc-7.0.4 requires array ==0.3.0.2
> 
> 
> How can it be that the same package (ghc-7.0.4) asks for two different 
> versions (array 0.3.0.3 / 0.3.0.2) excluding each other?
> 
> claudio
> 
> 
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