I am trying install a package using cabal-install however the package
requies an older version of QuickCheck and one of the required packages
requires the latest version:
$ cabal fetch Reactive
Resolving dependencies...
cabal.exe: cannot configure Stream-0.3.1. It requires QuickCheck >=2.0
For the dependency on QuickCheck >=2.0 there are these packages:
QuickCheck-2.1 and QuickCheck-2.1.0.1. However none of them are available.
QuickCheck-2.1 was excluded because checkers-0.1.3 requires QuickCheck <2.0
QuickCheck-2.1 was excluded because reactive-0.10.5 requires QuickCheck <2.0
QuickCheck-2.1.0.1 was excluded because checkers-0.1.3 requires QuickCheck
<2.0
QuickCheck-2.1.0.1 was excluded because reactive-0.10.5 requires QuickCheck
<2.0
How can I get around this? I could work around this and install the
packages individually. Can I have two versions of a package installed
(ie QuickCheck) and will everything get resolved correctly?
Mark
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