Resolving dependencies... Configuring mtl-2.2.1... Configuring text-1.2.2.1... Building mtl-2.2.1... Building text-1.2.2.1... Installed mtl-2.2.1 Installed text-1.2.2.1 Configuring parsec-3.1.11... Building parsec-3.1.11... Installed parsec-3.1.11 Configuring ewe-0.1.0.12... Building ewe-0.1.0.12... Failed to install ewe-0.1.0.12 Build log ( /home/builder/.cabal/logs/ewe-0.1.0.12.log ): cabal: Entering directory '/tmp/cabal-tmp-23222/ewe-0.1.0.12' Configuring ewe-0.1.0.12... Building ewe-0.1.0.12... Preprocessing executable 'ewe' for ewe-0.1.0.12... [1 of 6] Compiling Paths_ewe ( dist/build/autogen/Paths_ewe.hs, dist/build/ewe/ewe-tmp/Paths_ewe.o ) [2 of 6] Compiling Language.EWE.Token ( src/Language/EWE/Token.hs, dist/build/ewe/ewe-tmp/Language/EWE/Token.o ) [3 of 6] Compiling Language.EWE.AbsSyn ( src/Language/EWE/AbsSyn.hs, dist/build/ewe/ewe-tmp/Language/EWE/AbsSyn.o ) [4 of 6] Compiling Language.EWE.Parser ( src/Language/EWE/Parser.hs, dist/build/ewe/ewe-tmp/Language/EWE/Parser.o ) src/Language/EWE/Parser.hs:9:1: error: Failed to load interface for ‘Language.EWE.EweLang’ Use -v to see a list of the files searched for. cabal: Leaving directory '/tmp/cabal-tmp-23222/ewe-0.1.0.12' cabal: Error: some packages failed to install: ewe-0.1.0.12 failed during the building phase. The exception was: ExitFailure 1