Resolving dependencies... Configuring mtl-2.2.1... Building mtl-2.2.1... Installed mtl-2.2.1 Configuring ewe-0.1.0.30... Building ewe-0.1.0.30... Failed to install ewe-0.1.0.30 Build log ( /home/builder/.cabal/logs/ewe-0.1.0.30.log ): cabal: Entering directory '/tmp/cabal-tmp-5592/ewe-0.1.0.30' Configuring ewe-0.1.0.30... Building ewe-0.1.0.30... Preprocessing executable 'ewe' for ewe-0.1.0.30... cabal: can't find source for Language/EWE/AbsSyn in src, dist/build/autogen cabal: Leaving directory '/tmp/cabal-tmp-5592/ewe-0.1.0.30' cabal: Error: some packages failed to install: ewe-0.1.0.30 failed during the building phase. The exception was: ExitFailure 1