Resolving dependencies... Downloading GeneralTicTacToe-0.1.0.0... Configuring GeneralTicTacToe-0.1.0.0... Building GeneralTicTacToe-0.1.0.0... Preprocessing executable 'GeneralTicTacToe' for GeneralTicTacToe-0.1.0.0... TicTacToe.hs:7:8: Could not find module ‘Utils’ Perhaps you meant Util (needs flag -package ghc-7.8.3) Use -v to see a list of the files searched for. Failed to install GeneralTicTacToe-0.1.0.0 cabal: Error: some packages failed to install: GeneralTicTacToe-0.1.0.0 failed during the building phase. The exception was: ExitFailure 1