Resolving dependencies... Configuring bytestring-0.9.2.1... Configuring mime-0.3.4... Building mime-0.3.4... Building bytestring-0.9.2.1... Configuring split-0.2.3.1... Installed mime-0.3.4 Building split-0.2.3.1... Installed split-0.2.3.1 Installed bytestring-0.9.2.1 Configuring attoparsec-0.9.1.2... Configuring unix-2.7.2.1... Building attoparsec-0.9.1.2... Configuring utf8-string-1.0.1.1... Installed attoparsec-0.9.1.2 Building utf8-string-1.0.1.1... Building unix-2.7.2.1... Installed utf8-string-1.0.1.1 Configuring stompl-0.1.0... Building stompl-0.1.0... Failed to install stompl-0.1.0 Build log ( /home/builder/.cabal/logs/stompl-0.1.0.log ): cabal: Entering directory '/tmp/cabal-tmp-20867/stompl-0.1.0' Configuring stompl-0.1.0... Building stompl-0.1.0... Preprocessing library stompl-0.1.0... [1 of 2] Compiling Network.Mom.Stompl.Frame ( Network/Mom/Stompl/Frame.hs, dist/build/Network/Mom/Stompl/Frame.o ) [2 of 2] Compiling Network.Mom.Stompl.Parser ( Network/Mom/Stompl/Parser.hs, dist/build/Network/Mom/Stompl/Parser.o ) Network/Mom/Stompl/Parser.hs:230:20: error: Variable not in scope: peekWord8 :: Parser (Maybe Word8) cabal: Leaving directory '/tmp/cabal-tmp-20867/stompl-0.1.0' Installed unix-2.7.2.1 Configuring network-2.6.3.1... Building network-2.6.3.1... Installed network-2.6.3.1 cabal: Error: some packages failed to install: stomp-queue-0.0.2 depends on stompl-0.1.0 which failed to install. stompl-0.1.0 failed during the building phase. The exception was: ExitFailure 1