[Haskell-cafe] various dependencies breakages

[Thomas Girod]

Hi there.

I'm trying to reinstall gitit after updating to ghc 6.12 and it's
driving me crazy. I hope you will be able to help me troubleshoot this
mess ...  I'm starting from scratch again, using cabal. I will
post more problems as they appears.

$ cabal install gitit
Resolving dependencies...
cabal: cannot configure datetime-0.2. It requires QuickCheck ==2.*
For the dependency on QuickCheck ==2.* there are these packages:
QuickCheck-2.1, QuickCheck-2.1.0.1, QuickCheck-2.1.0.2 and
QuickCheck-2.1.0.3.
However none of them are available.
QuickCheck-2.1 was excluded because happstack-util-0.4.1 requires
QuickCheck
<2
QuickCheck-2.1.0.1 was excluded because happstack-util-0.4.1 requires
QuickCheck <2
QuickCheck-2.1.0.2 was excluded because happstack-util-0.4.1 requires
QuickCheck <2
QuickCheck-2.1.0.3 was excluded because happstack-util-0.4.1 requires
QuickCheck <2

Can't cabal handle several versions of the same library in parallel ? If
not, how can I solve this problem ?

cheers

tom