Resolving dependencies... Starting ghcjs-dom-jsffi-0.9.5.0 Building ghcjs-dom-jsffi-0.9.5.0 Failed to install ghcjs-dom-jsffi-0.9.5.0 Build log ( /home/builder/.cabal/logs/ghc-8.10.2/ghcjs-dom-jsffi-0.9.5.0-6T1QPuLSHQ4KmO7I85ecW8.log ): cabal: Entering directory '/tmp/cabal-tmp-24000/ghcjs-dom-jsffi-0.9.5.0' Configuring ghcjs-dom-jsffi-0.9.5.0... Building ghcjs-dom-jsffi-0.9.5.0... 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. cabal: No executables and no library found. Nothing to do. cabal: Leaving directory '/tmp/cabal-tmp-24000/ghcjs-dom-jsffi-0.9.5.0' cabal: Error: some packages failed to install: ghcjs-dom-jsffi-0.9.5.0-6T1QPuLSHQ4KmO7I85ecW8 failed during the final install step. The exception was: ExitFailure 1