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.
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