On Wednesday 09 March 2011 11:42:48, Qi Qi wrote:
ghc-pkg check returns this:
There are problems in package network-2.2.1.10: dependency "parsec-3.1.1-583092e3fd1a17b79365b197467a185d" doesn't exist
Seems parsec-3.1.1 was rebuilt after network-2.2.1.10 was installed. Any idea what package caused that?
The following packages are broken, either because they have a problem listed above, or because they depend on a broken package. network-2.2.1.10
I installed parsec and network via cabal. Do you know how can I remove network-2.2.1.10 that is not needed because a higher version exists.
Try $ ghc-pkg unregister network-2.2.1.10 If ghc-pkg says that would break other packages (it shouldn't, if it would, those should have been reported too), you could unregister them first (or use --force) (and reinstall them afterwards).
Should I delete anything under ~/.ghc and ~/.cabal, and reinstall ghc and cabal-install, and those pacakges installed before using cabal?
Not as a first measure, while breakage is small, ghc-pkg unregister tends to be less work. Only if you have lots of breakage would I recommend deleting the local package db.
Thanks for your link of the Haskell-platform. I will wait for the official release and hope it will be soon.
Should be only a couple of days, iirc.