Resolving dependencies... Configuring wl-pprint-1.2... Building wl-pprint-1.2... Installed wl-pprint-1.2 Configuring applicative-numbers-0.0.0... Building applicative-numbers-0.0.0... Failed to install applicative-numbers-0.0.0 Build log ( /home/builder/.cabal/logs/applicative-numbers-0.0.0.log ): cabal: Entering directory '/tmp/cabal-tmp-19381/applicative-numbers-0.0.0' Configuring applicative-numbers-0.0.0... Building applicative-numbers-0.0.0... Preprocessing library applicative-numbers-0.0.0... cabal: can't find source for Data/Numeric/Function in src, dist/build/autogen cabal: Leaving directory '/tmp/cabal-tmp-19381/applicative-numbers-0.0.0' cabal: Error: some packages failed to install: applicative-numbers-0.0.0 failed during the building phase. The exception was: ExitFailure 1