Resolving dependencies... Configuring base-compat-0.9.3... Building base-compat-0.9.3... Installed base-compat-0.9.3 Configuring markdown-unlit-0.5.0... Building markdown-unlit-0.5.0... Installed markdown-unlit-0.5.0 Configuring generics-eot-0.2.1.2... Building generics-eot-0.2.1.2... Failed to install generics-eot-0.2.1.2 Build log ( /home/builder/.cabal/logs/ghc-8.2.2/generics-eot-0.2.1.2-3eKe2ysoDHQ7WHJ0Bi6SKb.log ): cabal: Entering directory '/tmp/cabal-tmp-31141/generics-eot-0.2.1.2' Configuring generics-eot-0.2.1.2... Preprocessing library for generics-eot-0.2.1.2.. Building library for generics-eot-0.2.1.2.. ghc: could not execute: markdown-unlit cabal: Leaving directory '/tmp/cabal-tmp-31141/generics-eot-0.2.1.2' cabal: Error: some packages failed to install: generics-eot-0.2.1.2-3eKe2ysoDHQ7WHJ0Bi6SKb failed during the building phase. The exception was: ExitFailure 1