Resolving dependencies... Configuring call-stack-0.1.0... Configuring mtl-2.2.1... Building mtl-2.2.1... Building call-stack-0.1.0... Installed call-stack-0.1.0 Configuring old-locale-1.0.0.7... Building old-locale-1.0.0.7... Configuring yjtools-0.9.18... Installed old-locale-1.0.0.7 Building yjtools-0.9.18... Configuring HUnit-1.5.0.0... Installed mtl-2.2.1 Building HUnit-1.5.0.0... Installed yjtools-0.9.18 Configuring old-time-1.1.0.3... Building old-time-1.1.0.3... Configuring mtlparse-0.1.4.0... Installed HUnit-1.5.0.0 Building mtlparse-0.1.4.0... Installed mtlparse-0.1.4.0 Configuring regexpr-0.5.4... Installed old-time-1.1.0.3 Building regexpr-0.5.4... Installed regexpr-0.5.4 Configuring hake-0.6... Building hake-0.6... Failed to install hake-0.6 Build log ( /home/builder/.cabal/logs/hake-0.6.log ): cabal: Entering directory '/tmp/cabal-tmp-7410/hake-0.6' Configuring hake-0.6... Building hake-0.6... Preprocessing library hake-0.6... [1 of 2] Compiling Development.Hake.HiddenTools ( Development/Hake/HiddenTools.hs, dist/build/Development/Hake/HiddenTools.o ) Development/Hake/HiddenTools.hs:33:1: error: Failed to load interface for ‘Control.Monad.Utils’ Perhaps you meant Control.Monad.Fail (from base-4.9.0.0) Control.Monad.Tools (from yjtools-0.9.18) Control.Monad.Fix (from base-4.9.0.0) Use -v to see a list of the files searched for. cabal: Leaving directory '/tmp/cabal-tmp-7410/hake-0.6' cabal: Error: some packages failed to install: hake-0.6 failed during the building phase. The exception was: ExitFailure 1