All, I'm getting a lot of this kind of problem now that a new major version of QuickCheck has come out... blackh@amentet:~/src/projectx$ cabal install Resolving dependencies... cabal: dependencies conflict: Crypto-4.2.0.1 requires QuickCheck ==1.2.0.0 however QuickCheck-1.2.0.0 was excluded because QuickCheck-2.1.0.1 was selected instead QuickCheck-1.2.0.0 was excluded because test-framework-quickcheck2-0.2.2 requires QuickCheck >=2.1.0.0 QuickCheck-1.2.0.0 was excluded because ProjectX-0.1 requires QuickCheck
=2.1
It isn't practical to fix this properly - That would require lots of work upgrading quickcheck on all dependent packages. (Crypto-4.2.0.1 is my hacked version of Crypto-4.2.0 with a closed upper version limit to prevent it forcing QuickCheck-2.* which won't compile.) Is there a better solution to this problem? Should a package maintainer have the right to choose an old version of QuickCheck, or should cabal's policy force all package maintainers to upgrade (preferably all on the same day)? Steve