Resolving dependencies... Configuring random-1.1... Building random-1.1... Installed random-1.1 Configuring Numbers-0.2... Building Numbers-0.2... Failed to install Numbers-0.2 Build log ( /home/builder/.cabal/logs/Numbers-0.2.log ): cabal: Entering directory '/tmp/cabal-tmp-15661/Numbers-0.2' Configuring Numbers-0.2... Building Numbers-0.2... Preprocessing library Numbers-0.2... [1 of 1] Compiling Data.Numbers ( Data/Numbers.hs, dist/build/Data/Numbers.o ) Data/Numbers.hs:13:1: error: Failed to load interface for ‘Data.Numbers.Primes’ Use -v to see a list of the files searched for. cabal: Leaving directory '/tmp/cabal-tmp-15661/Numbers-0.2' cabal: Error: some packages failed to install: Numbers-0.2 failed during the building phase. The exception was: ExitFailure 1