Resolving dependencies... Configuring wl-pprint-1.2... Building wl-pprint-1.2... Installed wl-pprint-1.2 Configuring js-good-parts-0.0.1... Building js-good-parts-0.0.1... Failed to install js-good-parts-0.0.1 Build log ( /home/builder/.cabal/logs/js-good-parts-0.0.1.log ): cabal: Entering directory '/tmp/cabal-tmp-18107/js-good-parts-0.0.1' Configuring js-good-parts-0.0.1... Building js-good-parts-0.0.1... Preprocessing library js-good-parts-0.0.1... [1 of 2] Compiling Language.JavaScript.AST ( src/Language/JavaScript/AST.hs, dist/build/Language/JavaScript/AST.o ) src/Language/JavaScript/AST.hs:126:1: error: Failed to load interface for ‘Language.JavaScript.NonEmptyList’ Use -v to see a list of the files searched for. cabal: Leaving directory '/tmp/cabal-tmp-18107/js-good-parts-0.0.1' cabal: Error: some packages failed to install: js-good-parts-0.0.1 failed during the building phase. The exception was: ExitFailure 1