Resolving dependencies... Configuring data-inttrie-0.1.2... Configuring base-orphans-0.5.4... Building base-orphans-0.5.4... Building data-inttrie-0.1.2... Installed base-orphans-0.5.4 Configuring TypeCompose-0.9.12... Building TypeCompose-0.9.12... Installed data-inttrie-0.1.2 Installed TypeCompose-0.9.12 Downloading functor-combo-0.0.0... Configuring functor-combo-0.0.0... Building functor-combo-0.0.0... Failed to install functor-combo-0.0.0 Build log ( /home/builder/.cabal/logs/functor-combo-0.0.0.log ): cabal: Entering directory '/tmp/cabal-tmp-22503/functor-combo-0.0.0' Configuring functor-combo-0.0.0... Building functor-combo-0.0.0... Preprocessing library functor-combo-0.0.0... [1 of 8] Compiling FunctorCombo.Functor ( src/FunctorCombo/Functor.hs, dist/build/FunctorCombo/Functor.o ) src/FunctorCombo/Functor.hs:82:1: error: • Can't make a derived instance of ‘Functor (f :+: g)’: You need DeriveFunctor to derive an instance for this class • In the stand-alone deriving instance for ‘(Functor f, Functor g) => Functor (f :+: g)’ src/FunctorCombo/Functor.hs:88:1: error: • Can't make a derived instance of ‘Functor (f :*: g)’: You need DeriveFunctor to derive an instance for this class • In the stand-alone deriving instance for ‘(Functor f, Functor g) => Functor (f :*: g)’ cabal: Leaving directory '/tmp/cabal-tmp-22503/functor-combo-0.0.0' cabal: Error: some packages failed to install: functor-combo-0.0.0 failed during the building phase. The exception was: ExitFailure 1