Thank you, Daniel. The problem is solved! I found out that both global and local package db get directory-1.1.0.0 and process-1.0.1.5. I unregistered them and other caused broken packages in the local package db. Then I successfully installed back hmatrix, ghc-mod, happy and etc. It seems that xmobar will install directory-1.1.0.0 again in the local package db.
Did you succeed in installing haddock 2.9? Mine got some syntax oriented error duing cabal install haddock. But it's fine. Daniel Fischer wrote: > > On Wednesday 09 March 2011 12:16:30, Qi Qi wrote: >> I think this is the same problem as I got during installing some other >> packages via cabal such as hmatrix, ghc-mod, happy and etc. >> >> Does anyone have any idea about how to solve it? > > > I think it may be a problem with your GHC. I have no problems cabal > install'ing packages using > > $ cabal --version > cabal-install version 0.10.0 > using version 1.10.1.0 of the Cabal library > > $ ghc --version > The Glorious Glasgow Haskell Compilation System, version 7.0.2 > > Does compiling a simple module using the Cabal library work? > (for example > > module Main (main) where > > import Distribution.Simple.Setup > > main :: IO () > main = print defaultGlobalFlags > > ) > > If your Cabal package is really unusable, that should break too (but then, > why doesn't ghc-pkg check report it as broken?). Re-installing Cabal would > be an option then. > If it works, on the other hand, the problem may be with your cabal and re- > installing that may be worth a try. > > _______________________________________________ > Haskell-Cafe mailing list > Haskell-Cafe@haskell.org > http://www.haskell.org/mailman/listinfo/haskell-cafe > -- View this message in context: http://haskell.1045720.n5.nabble.com/some-problem-with-Cabal-tp3414662p3414823.html Sent from the Haskell - Haskell-Cafe mailing list archive at Nabble.com. _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe