Resolving dependencies... Configuring syb-0.6... Building syb-0.6... Installed syb-0.6 Configuring haskell-src-1.0.2.0... Building haskell-src-1.0.2.0... Installed haskell-src-1.0.2.0 Downloading arrowp-0.5.0.1... Configuring arrowp-0.5.0.1... Building arrowp-0.5.0.1... Failed to install arrowp-0.5.0.1 Build log ( /home/builder/.cabal/logs/arrowp-0.5.0.1.log ): cabal: Entering directory '/tmp/cabal-tmp-22158/arrowp-0.5.0.1' Configuring arrowp-0.5.0.1... Building arrowp-0.5.0.1... Preprocessing executable 'arrowp' for arrowp-0.5.0.1... shift/reduce conflicts: 2 [1 of 7] Compiling Utils ( preprocessor/Utils.lhs, dist/build/arrowp/arrowp-tmp/Utils.o ) [2 of 7] Compiling State ( preprocessor/State.hs, dist/build/arrowp/arrowp-tmp/State.o ) preprocessor/State.hs:7:10: error: • No instance for (Applicative (State s)) arising from the superclasses of an instance declaration • In the instance declaration for ‘Monad (State s)’ cabal: Leaving directory '/tmp/cabal-tmp-22158/arrowp-0.5.0.1' cabal: Error: some packages failed to install: arrowp-0.5.0.1 failed during the building phase. The exception was: ExitFailure 1