Resolving dependencies... Configuring GenericPretty-1.1.0... Building GenericPretty-1.1.0... Failed to install GenericPretty-1.1.0 Build log ( /home/builder/.cabal/logs/GenericPretty-1.1.0.log ): cabal: Entering directory '/tmp/cabal-tmp-25297/GenericPretty-1.1.0' Configuring GenericPretty-1.1.0... Building GenericPretty-1.1.0... Preprocessing library GenericPretty-1.1.0... [1 of 2] Compiling Text.PrettyPrint.MyPretty ( Text/PrettyPrint/MyPretty.hs, dist/build/Text/PrettyPrint/MyPretty.o ) Text/PrettyPrint/MyPretty.hs:30:17: error: Ambiguous occurrence ‘Style’ It could refer to either ‘Pretty.Style’, imported from ‘Pretty’ at Text/PrettyPrint/MyPretty.hs:18:1-13 or ‘Text.PrettyPrint.MyPretty.Style’, defined at Text/PrettyPrint/MyPretty.hs:22:1 Text/PrettyPrint/MyPretty.hs:31:29: error: Ambiguous occurrence ‘mode’ It could refer to either ‘Pretty.mode’, imported from ‘Pretty’ at Text/PrettyPrint/MyPretty.hs:18:1-13 or ‘Text.PrettyPrint.MyPretty.mode’, defined at Text/PrettyPrint/MyPretty.hs:23:23 Text/PrettyPrint/MyPretty.hs:31:38: error: Ambiguous occurrence ‘lineLength’ It could refer to either ‘Pretty.lineLength’, imported from ‘Pretty’ at Text/PrettyPrint/MyPretty.hs:18:1-13 or ‘Text.PrettyPrint.MyPretty.lineLength’, defined at Text/PrettyPrint/MyPretty.hs:24:23 Text/PrettyPrint/MyPretty.hs:31:53: error: Ambiguous occurrence ‘ribbonsPerLine’ It could refer to either ‘Pretty.ribbonsPerLine’, imported from ‘Pretty’ at Text/PrettyPrint/MyPretty.hs:18:1-13 or ‘Text.PrettyPrint.MyPretty.ribbonsPerLine’, defined at Text/PrettyPrint/MyPretty.hs:25:23 Text/PrettyPrint/MyPretty.hs:44:10: error: Ambiguous occurrence ‘Style’ It could refer to either ‘Pretty.Style’, imported from ‘Pretty’ at Text/PrettyPrint/MyPretty.hs:18:1-13 or ‘Text.PrettyPrint.MyPretty.Style’, defined at Text/PrettyPrint/MyPretty.hs:22:1 Text/PrettyPrint/MyPretty.hs:45:9: error: Ambiguous occurrence ‘Style’ It could refer to either ‘Pretty.Style’, imported from ‘Pretty’ at Text/PrettyPrint/MyPretty.hs:18:1-13 or ‘Text.PrettyPrint.MyPretty.Style’, defined at Text/PrettyPrint/MyPretty.hs:23:13 Text/PrettyPrint/MyPretty.hs:45:16: error: Ambiguous occurrence ‘mode’ It could refer to either ‘Pretty.mode’, imported from ‘Pretty’ at Text/PrettyPrint/MyPretty.hs:18:1-13 or ‘Text.PrettyPrint.MyPretty.mode’, defined at Text/PrettyPrint/MyPretty.hs:23:23 Text/PrettyPrint/MyPretty.hs:45:33: error: Ambiguous occurrence ‘lineLength’ It could refer to either ‘Pretty.lineLength’, imported from ‘Pretty’ at Text/PrettyPrint/MyPretty.hs:18:1-13 or ‘Text.PrettyPrint.MyPretty.lineLength’, defined at Text/PrettyPrint/MyPretty.hs:24:23 Text/PrettyPrint/MyPretty.hs:45:50: error: Ambiguous occurrence ‘ribbonsPerLine’ It could refer to either ‘Pretty.ribbonsPerLine’, imported from ‘Pretty’ at Text/PrettyPrint/MyPretty.hs:18:1-13 or ‘Text.PrettyPrint.MyPretty.ribbonsPerLine’, defined at Text/PrettyPrint/MyPretty.hs:25:23 cabal: Leaving directory '/tmp/cabal-tmp-25297/GenericPretty-1.1.0' cabal: Error: some packages failed to install: GenericPretty-1.1.0 failed during the building phase. The exception was: ExitFailure 1