I'm on Mac OS X Snow Leopard, and can't get haddock installed due to the following error: Resolving dependencies... Configuring haddock-2.6.0... Warning: This package indirectly depends on multiple versions of the same package. This is highly likely to cause a compile failure. package haddock-2.6.0 requires Cabal-1.8.0.2 package ghc-6.12.1 requires Cabal-1.8.0.2 package bin-package-db-0.0.0.0 requires Cabal-1.8.0.2 Preprocessing library haddock-2.6.0... Preprocessing executables for haddock-2.6.0... unused terminals: 1 Building haddock-2.6.0... <command line>: cannot satisfy -package-id ghc-6.12.1-b691a185e99c62533666d9a28a9e1988: ghc-6.12.1-b691a185e99c62533666d9a28a9e1988 is unusable due to missing or recursive dependencies: Cabal-1.8.0.2-a08510b9460f1b65f9dee06ed53f0650 bin-package-db-0.0.0.0-0c559ebe951f9972c4e6dfe5ebd4ce6a (use -v for more information) cabal: Error: some packages failed to install: haddock-2.6.0 failed during the building phase. The exception was: ExitFailure 1 When I do a "ghc-pkg list | grep Cabal" I get the following: ghc-pkg list | grep Cabal Cabal-1.8.0.2 Cabal-1.8.0.2 I'm wondering if this means I have a copy in my .cabal, and another from GHC,and if that could be causing a problem? I'm trying to work on the Haddock docs for the NineP package I uploaded the other day, and would rather not have to finish uploading before previewing the result :-) Dave