Resolving dependencies... Configuring tar-0.5.0.3... Building tar-0.5.0.3... Installed tar-0.5.0.3 Configuring cabal-src-0.1... Building cabal-src-0.1... Failed to install cabal-src-0.1 Build log ( /home/builder/.cabal/logs/cabal-src-0.1.log ): cabal: Entering directory '/tmp/cabal-tmp-12868/cabal-src-0.1' Configuring cabal-src-0.1... Building cabal-src-0.1... Preprocessing executable 'cabal-src-install' for cabal-src-0.1... [1 of 1] Compiling Main ( cabal-src-install.hs, dist/build/cabal-src-install/cabal-src-install-tmp/Main.o ) cabal-src-install.hs:50:49: error: • Couldn't match type ‘Tar.FormatError’ with ‘[Char]’ Expected type: S.ByteString -> Tar.Entries [Char] Actual type: S.ByteString -> Tar.Entries Tar.FormatError • In the second argument of ‘(.)’, namely ‘Tar.read . L.fromChunks . return’ In the first argument of ‘(<$>)’, namely ‘Tar.foldEntries (:) [] error . Tar.read . L.fromChunks . return’ In the expression: Tar.foldEntries (:) [] error . Tar.read . L.fromChunks . return <$> S.readFile tb cabal: Leaving directory '/tmp/cabal-tmp-12868/cabal-src-0.1' cabal: Error: some packages failed to install: cabal-src-0.1 failed during the building phase. The exception was: ExitFailure 1