Resolving dependencies... Configuring reformat-0.1.0.1... Failed to install reformat-0.1.0.1 Build log ( /home/builder/.cabal/logs/ghc-8.2.2/reformat-0.1.0.1-1fXIhrb66Js2bo7hi1jgqv.log ): cabal: Entering directory '/tmp/cabal-tmp-470/reformat-0.1.0.1' Configuring reformat-0.1.0.1... Error: Problem with module re-exports: - The module 'Text.ParserCombinators.Parsec.Tokenc' is not exported by any suitable package. It occurs in neither the 'exposed-modules' of this package, nor any of its 'build-depends' dependencies. In the stanza library cabal: Leaving directory '/tmp/cabal-tmp-470/reformat-0.1.0.1' cabal: Error: some packages failed to install: reformat-0.1.0.1-1fXIhrb66Js2bo7hi1jgqv failed during the configure step. The exception was: ExitFailure 1