Resolving dependencies... Configuring parallel-3.2.1.0... Configuring mtl-2.2.1... Building parallel-3.2.1.0... Building mtl-2.2.1... Installed parallel-3.2.1.0 Configuring primitive-0.6.1.0... Building primitive-0.6.1.0... Configuring random-1.1... Installed mtl-2.2.1 Building random-1.1... Configuring text-1.2.2.1... Installed primitive-0.6.1.0 Building text-1.2.2.1... Configuring utf8-string-0.3.7... Installed random-1.1 Building utf8-string-0.3.7... Installed utf8-string-0.3.7 Downloading cairo-0.12.5.3... Downloading glib-0.12.5.4... Configuring vector-0.11.0.0... Building vector-0.11.0.0... Configuring tf-random-0.5... Installed text-1.2.2.1 Building tf-random-0.5... Installed tf-random-0.5 Configuring cairo-0.12.5.3... Failed to install cairo-0.12.5.3 Build log ( /home/builder/.cabal/logs/cairo-0.12.5.3.log ): cabal: Entering directory '/tmp/cabal-tmp-19460/cairo-0.12.5.3' cabal: Leaving directory '/tmp/cabal-tmp-19460/cairo-0.12.5.3' Configuring hashable-1.2.4.0... Building hashable-1.2.4.0... Configuring glib-0.12.5.4... Installed hashable-1.2.4.0 Configuring xml-1.3.14... Failed to install glib-0.12.5.4 Build log ( /home/builder/.cabal/logs/glib-0.12.5.4.log ): cabal: Entering directory '/tmp/cabal-tmp-19461/glib-0.12.5.4' cabal: Leaving directory '/tmp/cabal-tmp-19461/glib-0.12.5.4' Building xml-1.3.14... Configuring QuickCheck-2.9.2... Installed xml-1.3.14 Configuring unordered-containers-0.2.7.1... Installed vector-0.11.0.0 Building QuickCheck-2.9.2... Building unordered-containers-0.2.7.1... Installed unordered-containers-0.2.7.1 Installed QuickCheck-2.9.2 cabal: Error: some packages failed to install: cairo-0.12.5.3 failed during the configure step. The exception was: user error ('/opt/ghc/8.0.2/bin/ghc' exited with an error: /tmp/cabal-tmp-19460/cairo-0.12.5.3/SetupWrapper.hs:60:49: error: Ambiguous occurrence ‘exeExtension’ It could refer to either ‘Distribution.Simple.BuildPaths.exeExtension’, imported from ‘Distribution.Simple.BuildPaths’ at /tmp/cabal-tmp-19460/cairo-0.12.5.3/SetupWrapper.hs:11:40-51 or ‘System.Directory.exeExtension’, imported from ‘System.Directory’ at /tmp/cabal-tmp-19460/cairo-0.12.5.3/SetupWrapper.hs:23:1-23 (and originally defined in ‘directory-1.2.6.2:System.Directory.Internal.Config’) /tmp/cabal-tmp-19460/cairo-0.12.5.3/SetupWrapper.hs:91:17: error: Ambiguous occurrence ‘die’ It could refer to either ‘Distribution.Simple.Utils.die’, imported from ‘Distribution.Simple.Utils’ at /tmp/cabal-tmp-19460/cairo-0.12.5.3/SetupWrapper.hs:8:1-32 or ‘System.Exit.die’, imported from ‘System.Exit’ at /tmp/cabal-tmp-19460/cairo-0.12.5.3/SetupWrapper.hs:21:1-18 ) gio-0.12.5.3 depends on glib-0.12.5.4 which failed to install. glade-0.12.5.0 depends on cairo-0.12.5.3 which failed to install. glib-0.12.5.4 failed during the configure step. The exception was: user error ('/opt/ghc/8.0.2/bin/ghc' exited with an error: /tmp/cabal-tmp-19461/glib-0.12.5.4/SetupWrapper.hs:60:49: error: Ambiguous occurrence ‘exeExtension’ It could refer to either ‘Distribution.Simple.BuildPaths.exeExtension’, imported from ‘Distribution.Simple.BuildPaths’ at /tmp/cabal-tmp-19461/glib-0.12.5.4/SetupWrapper.hs:11:40-51 or ‘System.Directory.exeExtension’, imported from ‘System.Directory’ at /tmp/cabal-tmp-19461/glib-0.12.5.4/SetupWrapper.hs:23:1-23 (and originally defined in ‘directory-1.2.6.2:System.Directory.Internal.Config’) /tmp/cabal-tmp-19461/glib-0.12.5.4/SetupWrapper.hs:91:17: error: Ambiguous occurrence ‘die’ It could refer to either ‘Distribution.Simple.Utils.die’, imported from ‘Distribution.Simple.Utils’ at /tmp/cabal-tmp-19461/glib-0.12.5.4/SetupWrapper.hs:8:1-32 or ‘System.Exit.die’, imported from ‘System.Exit’ at /tmp/cabal-tmp-19461/glib-0.12.5.4/SetupWrapper.hs:21:1-18 ) gtk-0.12.5.7 depends on cairo-0.12.5.3 which failed to install. hstzaar-0.9.4 depends on cairo-0.12.5.3 which failed to install. pango-0.12.5.3 depends on cairo-0.12.5.3 which failed to install.