Resolving dependencies... Downloading smtp2mta-0.2... Configuring smtp2mta-0.2... Building smtp2mta-0.2... Preprocessing executable 'smtp2mta' for smtp2mta-0.2... smtp2mta.hs:12:8: Ambiguous module name `Prelude': it was found in multiple packages: base haskell98-2.0.0.2 Failed to install smtp2mta-0.2 cabal: Error: some packages failed to install: smtp2mta-0.2 failed during the building phase. The exception was: ExitFailure 1