On 22 March 2010 11:05, Carter Schonwald
apparently sometimes even though cabal can figure out the dependencies for a package you want, it gets confused (or something) when it needs to figure out the "transitive" dependencies (that which needs to be installed for the direct dependencies to also install). So try doing a cabal install of that version of template haskell with the explicit version cabal install template-haskell-2.4.0.0 that should solve it
Yes, I tried that, but unfortunately it falls over with: Language/Haskell/TH/Quote.hs:31:12: Not in scope: data constructor `CharConstr' cabal: Error: some packages failed to install: template-haskell-2.4.0.0 failed during the building phase. The exception was: exit: ExitFailure 1 In the version of Data.Data on my machine there does not appear to be a CharConstr. It looks to me like there is an incorrect dependency in Template Haskell. I can see from the hackage build logs that I'm not the only one who has this problem. I will report a bug. Cheers, Bernie.