Resolving dependencies... Configuring ghcjs-base-0.8.0.4... Building ghcjs-base-0.8.0.4... Warning: No documentation was generated as this package does not contain a library. Perhaps you want to use the --executables, --tests, --benchmarks or --foreign-libraries flags. Error: cabal: No executables and no library found. Nothing to do. Failed to install ghcjs-base-0.8.0.4 Error: cabal: Some packages failed to install: ghcjs-base-0.8.0.4-UxmhoLt7VM7Y6sU2zrpzQ failed during the final install step. The exception was: ExitFailure 1