Resolving dependencies... Configuring hoppy-runtime-0.4.0... Configuring hoppy-generator-0.4.0... Building hoppy-runtime-0.4.0... Building hoppy-generator-0.4.0... Installed hoppy-runtime-0.4.0 Installed hoppy-generator-0.4.0 Configuring hoppy-std-0.4.0... Building hoppy-std-0.4.0... Installed hoppy-std-0.4.0 Configuring qtah-generator-0.4.0... Building qtah-generator-0.4.0... Installed qtah-generator-0.4.0 Configuring qtah-cpp-qt5-0.4.0... Failed to install qtah-cpp-qt5-0.4.0 Build log ( /home/builder/.cabal/logs/ghc-8.2.2/qtah-cpp-qt5-0.4.0-4fQnrDv8W8IFWqoq4hk3Uk.log ): cabal: Entering directory '/tmp/cabal-tmp-29417/qtah-cpp-qt5-0.4.0' [1 of 1] Compiling Main ( /tmp/cabal-tmp-29417/qtah-cpp-qt5-0.4.0/dist/setup/setup.hs, /tmp/cabal-tmp-29417/qtah-cpp-qt5-0.4.0/dist/setup/Main.o ) Linking /tmp/cabal-tmp-29417/qtah-cpp-qt5-0.4.0/dist/setup/setup ... Configuring qtah-cpp-qt5-0.4.0... 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-29417/qtah-cpp-qt5-0.4.0' cabal: Error: some packages failed to install: qtah-cpp-qt5-0.4.0-4fQnrDv8W8IFWqoq4hk3Uk failed during the configure step. The exception was: ExitFailure 1 qtah-qt5-0.4.0-5hT5QyMWllI52dXkucJNhU depends on qtah-qt5-0.4.0 which failed to install.