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.