Resolving dependencies... Configuring wl-pprint-1.2... Building wl-pprint-1.2... Preprocessing library wl-pprint-1.2... [1 of 1] Compiling Text.PrettyPrint.Leijen ( Text/PrettyPrint/Leijen.hs, dist/build/Text/PrettyPrint/Leijen.o ) In-place registering wl-pprint-1.2... Running Haddock for wl-pprint-1.2... Running hscolour for wl-pprint-1.2... Preprocessing library wl-pprint-1.2... Preprocessing library wl-pprint-1.2... Haddock coverage: 96% ( 85 / 89) in 'Text.PrettyPrint.Leijen' Documentation created: dist/doc/html/wl-pprint/index.html, dist/doc/html/wl-pprint/wl-pprint.txt Creating package registration file: /tmp/pkgConf-wl-pprint-12825.2 Installing library in /home/builder/hackage-server/build-cache/tmp-install/lib/x86_64-linux-ghc-7.8.3/wl-pprint-1.2 Registering wl-pprint-1.2... Installed wl-pprint-1.2 Downloading 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... src/Language/JavaScript/AST.hs:126:8: Could not find module ‘Language.JavaScript.NonEmptyList’ Use -v to see a list of the files searched for. src/Language/JavaScript/Pretty.hs:5:8: Could not find module ‘Text.PrettyPrint.Leijen.PrettyPrec’ Use -v to see a list of the files searched for. Failed to install 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