Resolving dependencies... Configuring bsparse-0.0.1... Building bsparse-0.0.1... Failed to install bsparse-0.0.1 Build log ( /home/builder/.cabal/logs/bsparse-0.0.1.log ): cabal: Entering directory '/tmp/cabal-tmp-20787/bsparse-0.0.1' Configuring bsparse-0.0.1... Building bsparse-0.0.1... Preprocessing library bsparse-0.0.1... [1 of 1] Compiling Data.ByteString.Parse ( Data/ByteString/Parse.hs, dist/build/Data/ByteString/Parse.o ) Data/ByteString/Parse.hs:36:1: error: Failed to load interface for ‘Data.ByteString’ It is a member of the hidden package ‘bytestring-0.10.8.1’. Perhaps you need to add ‘bytestring’ to the build-depends in your .cabal file. Use -v to see a list of the files searched for. Data/ByteString/Parse.hs:37:1: error: Failed to load interface for ‘Data.ByteString’ It is a member of the hidden package ‘bytestring-0.10.8.1’. Perhaps you need to add ‘bytestring’ to the build-depends in your .cabal file. Use -v to see a list of the files searched for. Data/ByteString/Parse.hs:38:1: error: Failed to load interface for ‘Data.ByteString.Unsafe’ It is a member of the hidden package ‘bytestring-0.10.8.1’. Perhaps you need to add ‘bytestring’ to the build-depends in your .cabal file. Use -v to see a list of the files searched for. cabal: Leaving directory '/tmp/cabal-tmp-20787/bsparse-0.0.1' cabal: Error: some packages failed to install: bsparse-0.0.1 failed during the building phase. The exception was: ExitFailure 1