kyagrd@kyagrd:~/cscs/EugeneSumSch/distr$ cabal --version cabal-install version 0.6.0 using version 1.6.0.1 of the Cabal library kyagrd@kyagrd:~$ cabal update Downloading package list from server 'http://hackage.haskell.org/packages/archive' kyagrd@kyagrd:~$ cabal upgrade Resolving dependencies... cabal: cannot configure HUnit-1.2.0.2. It requires base ==4.* There is no available version of base that satisfies ==4.* I am using the current stable release of ghc 6.8.3 on linux i386, which as base version 3.x.x. As you can see, I am using the most recent version of cabal that I can get by doing "cabal upgrade cabal-install". Thanks, Ahn, Ki Yung