On Tue, Feb 17, 2009 at 11:50 PM, Achim Schneider wrote:

Martin Huschenbett wrote:

...

$ cabal install ghci-haskeline Resolving dependencies... cabal.exe: dependencies conflict: ghc-6.10.1 requires process ==1.0.1.1 however process-1.0.1.1 was excluded because ghc-6.10.1 requires process ==1.0.1.0

cabal uninstall process-1.0.1.1 is what you want to do,

except "cabal uninstall" doesn't exist (yet) and you meant "ghc-pkg unregister" i guess.

and never, ever[1] use cabal upgrade.

If you're interested in the gory details and why it's a bug while at the same time not being one, there's a lengthy thread starting with http://permalink.gmane.org/gmane.comp.lang.haskell.cafe/51759

[1] Until cabal becomes smarter

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