Resolving dependencies... Configuring ghc-paths-0.1.0.9... Configuring cmdargs-0.10.14... Building cmdargs-0.10.14... Building ghc-paths-0.1.0.9... Configuring network-2.6.3.1... Installed ghc-paths-0.1.0.9 Building network-2.6.3.1... Configuring syb-0.6... Installed network-2.6.3.1 Building syb-0.6... Installed cmdargs-0.10.14 Installed syb-0.6 Downloading hdevtools-0.1.0.6... Configuring hdevtools-0.1.0.6... Building hdevtools-0.1.0.6... Failed to install hdevtools-0.1.0.6 Build log ( /home/builder/.cabal/logs/hdevtools-0.1.0.6.log ): cabal: Entering directory '/tmp/cabal-tmp-24832/hdevtools-0.1.0.6' Configuring hdevtools-0.1.0.6... Building hdevtools-0.1.0.6... Preprocessing executable 'hdevtools' for hdevtools-0.1.0.6... [ 1 of 11] Compiling Util ( src/Util.hs, dist/build/hdevtools/hdevtools-tmp/Util.o ) [ 2 of 11] Compiling Types ( src/Types.hs, dist/build/hdevtools/hdevtools-tmp/Types.o ) [ 3 of 11] Compiling Paths_hdevtools ( dist/build/autogen/Paths_hdevtools.hs, dist/build/hdevtools/hdevtools-tmp/Paths_hdevtools.o ) [ 4 of 11] Compiling Info ( src/Info.hs, dist/build/hdevtools/hdevtools-tmp/Info.o ) src/Info.hs:177:5: error: Not in scope: ‘Pretty.showDoc’ Module ‘Pretty’ does not export ‘showDoc’. src/Info.hs:211:67: error: Not in scope: type constructor or class ‘GHC.PostTcType’ Perhaps you meant one of these: ‘GHC.PostTcExpr’ (imported from GHC), ‘GHC.PostTcTable’ (imported from GHC), ‘GHC.LHsWcType’ (imported from GHC) Module ‘GHC’ does not export ‘PostTcType’. cabal: Leaving directory '/tmp/cabal-tmp-24832/hdevtools-0.1.0.6' cabal: Error: some packages failed to install: hdevtools-0.1.0.6 failed during the building phase. The exception was: ExitFailure 1