Resolving dependencies... Configuring hoppy-runtime-0.5.1... Configuring syb-0.7... Building hoppy-runtime-0.5.1... Building syb-0.7... Installed syb-0.7 Configuring haskell-src-1.0.3.0... Building haskell-src-1.0.3.0... Installed hoppy-runtime-0.5.1 Installed haskell-src-1.0.3.0 Configuring hoppy-generator-0.5.2... Building hoppy-generator-0.5.2... Installed hoppy-generator-0.5.2 Configuring hoppy-std-0.5.0... Building hoppy-std-0.5.0... Installed hoppy-std-0.5.0 Configuring qtah-generator-0.5.0... Building qtah-generator-0.5.0... Installed qtah-generator-0.5.0 Configuring qtah-cpp-qt5-0.5.1... Failed to install qtah-cpp-qt5-0.5.1 Build log ( /home/builder/.cabal/logs/ghc-8.4.3/qtah-cpp-qt5-0.5.1-1LlS9nrXrQXKPVtQ9ZVVqu.log ): cabal: Entering directory '/tmp/cabal-tmp-24717/qtah-cpp-qt5-0.5.1' [1 of 1] Compiling Main ( /tmp/cabal-tmp-24717/qtah-cpp-qt5-0.5.1/dist/setup/setup.hs, /tmp/cabal-tmp-24717/qtah-cpp-qt5-0.5.1/dist/setup/Main.o ) Linking /tmp/cabal-tmp-24717/qtah-cpp-qt5-0.5.1/dist/setup/setup ... Configuring qtah-cpp-qt5-0.5.1... qtah-cpp-qt5: Requesting Qt 5 because of package name. setup: qtah-cpp-qt5: Couldn't find qtah-generator. Is it installed? cabal: Leaving directory '/tmp/cabal-tmp-24717/qtah-cpp-qt5-0.5.1' cabal: Error: some packages failed to install: qtah-cpp-qt5-0.5.1-1LlS9nrXrQXKPVtQ9ZVVqu failed during the configure step. The exception was: ExitFailure 1 qtah-qt5-0.5.1-DfRalfctLJZBWvyC6Hj880 depends on qtah-qt5-0.5.1 which failed to install.