Resolving dependencies... Configuring ansi-terminal-0.6.3.1... Configuring transformers-compat-0.5.1.4... Building ansi-terminal-0.6.3.1... Building transformers-compat-0.5.1.4... Installed transformers-compat-0.5.1.4 Installed ansi-terminal-0.6.3.1 Configuring ansi-wl-pprint-0.6.7.3... Building ansi-wl-pprint-0.6.7.3... Installed ansi-wl-pprint-0.6.7.3 Configuring optparse-applicative-0.14.0.0... Building optparse-applicative-0.14.0.0... Installed optparse-applicative-0.14.0.0 Configuring ploton-0.2.0.0... Building ploton-0.2.0.0... Failed to install ploton-0.2.0.0 Build log ( /home/builder/.cabal/logs/ploton-0.2.0.0.log ): cabal: Entering directory '/tmp/cabal-tmp-31793/ploton-0.2.0.0' Configuring ploton-0.2.0.0... Building ploton-0.2.0.0... Preprocessing library ploton-0.2.0.0... [1 of 3] Compiling Utils ( src/Utils.hs, dist/build/Utils.o ) [2 of 3] Compiling Paths_ploton ( dist/build/autogen/Paths_ploton.hs, dist/build/Paths_ploton.o ) [3 of 3] Compiling Config ( src/Config.hs, dist/build/Config.o ) src/Config.hs:89:38: error: Ambiguous occurrence ‘style’ It could refer to either ‘Options.Applicative.style’, imported from ‘Options.Applicative’ at src/Config.hs:6:1-26 (and originally defined in ‘Options.Applicative.Builder’) or ‘Config.style’, defined at src/Config.hs:24:7 cabal: Leaving directory '/tmp/cabal-tmp-31793/ploton-0.2.0.0' cabal: Error: some packages failed to install: ploton-0.2.0.0 failed during the building phase. The exception was: ExitFailure 1