Resolving dependencies... Configuring clock-0.7.2... Configuring cmdargs-0.10.14... Building clock-0.7.2... Building cmdargs-0.10.14... Configuring js-jquery-3.1.1... Installed clock-0.7.2 Building js-jquery-3.1.1... Configuring js-flot-0.8.3... Installed js-jquery-3.1.1 Building js-flot-0.8.3... Configuring old-locale-1.0.0.7... Installed js-flot-0.8.3 Building old-locale-1.0.0.7... Configuring mtl-2.2.1... Installed old-locale-1.0.0.7 Building mtl-2.2.1... Configuring random-1.1... Installed mtl-2.2.1 Building random-1.1... Configuring primitive-0.6.2.0... Installed random-1.1 Building primitive-0.6.2.0... Configuring syb-0.6... Installed cmdargs-0.10.14 Building syb-0.6... Configuring utf8-string-1.0.1.1... Installed syb-0.6 Building utf8-string-1.0.1.1... Configuring wl-pprint-1.2... Installed primitive-0.6.2.0 Building wl-pprint-1.2... Configuring text-1.2.2.1... Installed wl-pprint-1.2 Building text-1.2.2.1... Installed utf8-string-1.0.1.1 Configuring extra-1.5.1... Building extra-1.5.1... Configuring old-time-1.1.0.3... Installed extra-1.5.1 Building old-time-1.1.0.3... Installed old-time-1.1.0.3 Installed text-1.2.2.1 Configuring parsec-3.1.11... Configuring hashable-1.2.4.0... Building hashable-1.2.4.0... Building parsec-3.1.11... Installed hashable-1.2.4.0 Configuring unordered-containers-0.2.7.2... Building unordered-containers-0.2.7.2... Configuring polyparse-1.12... Installed parsec-3.1.11 Building polyparse-1.12... Configuring grm-0.1.1... Installed unordered-containers-0.2.7.2 Building grm-0.1.1... Failed to install grm-0.1.1 Build log ( /home/builder/.cabal/logs/grm-0.1.1.log ): cabal: Entering directory '/tmp/cabal-tmp-23983/grm-0.1.1' Configuring grm-0.1.1... Building grm-0.1.1... Preprocessing library grm-0.1.1... [1 of 3] Compiling Grm.Prims ( Grm/Prims.hs, dist/build/Grm/Prims.o ) Grm/Prims.hs:91:17: error: Ambiguous occurrence ‘<$>’ It could refer to either ‘Prelude.<$>’, imported from ‘Prelude’ at Grm/Prims.hs:7:8-16 (and originally defined in ‘Data.Functor’) or ‘Text.PrettyPrint.Leijen.<$>’, imported from ‘Text.PrettyPrint.Leijen’ at Grm/Prims.hs:25:1-30 Grm/Prims.hs:91:40: error: Ambiguous occurrence ‘<$>’ It could refer to either ‘Prelude.<$>’, imported from ‘Prelude’ at Grm/Prims.hs:7:8-16 (and originally defined in ‘Data.Functor’) or ‘Text.PrettyPrint.Leijen.<$>’, imported from ‘Text.PrettyPrint.Leijen’ at Grm/Prims.hs:25:1-30 Grm/Prims.hs:199:35: error: Ambiguous occurrence ‘findFile’ It could refer to either ‘System.Directory.findFile’, imported from ‘System.Directory’ at Grm/Prims.hs:19:1-23 or ‘Grm.Prims.findFile’, defined at Grm/Prims.hs:195:1 cabal: Leaving directory '/tmp/cabal-tmp-23983/grm-0.1.1' Configuring uniplate-1.6.12... Building uniplate-1.6.12... Configuring shake-0.15.10... Installed polyparse-1.12 Building shake-0.15.10... Configuring cpphs-1.20.2... Installed uniplate-1.6.12 Building cpphs-1.20.2... Installed cpphs-1.20.2 Configuring haskell-src-exts-1.17.1... Building haskell-src-exts-1.17.1... Installed shake-0.15.10 Installed haskell-src-exts-1.17.1 Configuring derive-2.5.26... Building derive-2.5.26... Installed derive-2.5.26 cabal: Error: some packages failed to install: grm-0.1.1 failed during the building phase. The exception was: ExitFailure 1 pec-0.2.3 depends on grm-0.1.1 which failed to install.