Resolving dependencies... Configuring base-orphans-0.5.4... Configuring base-compat-0.9.1... Building base-compat-0.9.1... Building base-orphans-0.5.4... Installed base-orphans-0.5.4 Configuring base16-bytestring-0.1.1.6... Building base16-bytestring-0.1.1.6... Configuring data-binary-ieee754-0.4.4... Installed base-compat-0.9.1 Configuring base64-bytestring-1.0.0.1... Installed base16-bytestring-0.1.1.6 Building data-binary-ieee754-0.4.4... Building base64-bytestring-1.0.0.1... Configuring dlist-0.8.0.2... Installed data-binary-ieee754-0.4.4 Building dlist-0.8.0.2... Configuring monad-loops-0.4.3... Installed base64-bytestring-1.0.0.1 Building monad-loops-0.4.3... Configuring mtl-2.2.1... Installed dlist-0.8.0.2 Configuring parallel-3.2.1.0... Installed monad-loops-0.4.3 Building mtl-2.2.1... Building parallel-3.2.1.0... Configuring network-2.6.3.1... Installed parallel-3.2.1.0 Configuring prelude-extras-0.4.0.3... Installed mtl-2.2.1 Building prelude-extras-0.4.0.3... Building network-2.6.3.1... Configuring random-1.1... Installed prelude-extras-0.4.0.3 Building random-1.1... Configuring reflection-2.1.2... Installed random-1.1 Building reflection-2.1.2... Configuring primitive-0.6.1.0... Installed network-2.6.3.1 Building primitive-0.6.1.0... Configuring semigroups-0.18.2... Installed reflection-2.1.2 Configuring split-0.2.3.1... Installed primitive-0.6.1.0 Building semigroups-0.18.2... Building split-0.2.3.1... Configuring safe-0.3.10... Installed semigroups-0.18.2 Configuring stm-2.4.4.1... Installed split-0.2.3.1 Building safe-0.3.10... Building stm-2.4.4.1... Configuring text-1.2.2.1... Installed safe-0.3.10 Building text-1.2.2.1... Configuring time-locale-compat-0.1.1.3... Installed stm-2.4.4.1 Building time-locale-compat-0.1.1.3... Configuring transformers-compat-0.5.1.4... Installed time-locale-compat-0.1.1.3 Building transformers-compat-0.5.1.4... Configuring unix-compat-0.4.2.0... Installed transformers-compat-0.5.1.4 Building unix-compat-0.4.2.0... Configuring zlib-0.6.1.2... Installed unix-compat-0.4.2.0 Building zlib-0.6.1.2... Installed zlib-0.6.1.2 Configuring StateVar-1.1.0.4... Building StateVar-1.1.0.4... Configuring exceptions-0.8.3... Installed StateVar-1.1.0.4 Building exceptions-0.8.3... Configuring async-2.1.1... Installed text-1.2.2.1 Building async-2.1.1... Configuring mmorph-1.0.9... Installed exceptions-0.8.3 Building mmorph-1.0.9... Configuring vector-0.11.0.0... Installed async-2.1.1 Building vector-0.11.0.0... Configuring transformers-base-0.4.4... Installed mmorph-1.0.9 Building transformers-base-0.4.4... Configuring tagged-0.8.5... Installed transformers-base-0.4.4 Building tagged-0.8.5... Installed tagged-0.8.5 Configuring blaze-builder-0.4.0.2... Building blaze-builder-0.4.0.2... Configuring hashable-1.2.4.0... Installed blaze-builder-0.4.0.2 Building hashable-1.2.4.0... Configuring system-filepath-0.4.13.4... Installed hashable-1.2.4.0 Building system-filepath-0.4.13.4... Configuring monad-control-1.0.1.0... Installed system-filepath-0.4.13.4 Building monad-control-1.0.1.0... Configuring distributive-0.5.0.2... Installed vector-0.11.0.0 Installed monad-control-1.0.1.0 Configuring streaming-commons-0.1.16... Building streaming-commons-0.1.16... Building distributive-0.5.0.2... Installed distributive-0.5.0.2 Configuring void-0.7.1... Building void-0.7.1... Configuring ReadArgs-1.2.2... Installed void-0.7.1 Building ReadArgs-1.2.2... Configuring unordered-containers-0.2.7.1... Installed streaming-commons-0.1.16 Building unordered-containers-0.2.7.1... Configuring chunked-data-0.3.0... Installed ReadArgs-1.2.2 Building chunked-data-0.3.0... Configuring mwc-random-0.13.4.0... Installed chunked-data-0.3.0 Building mwc-random-0.13.4.0... Configuring scientific-0.3.4.9... Installed unordered-containers-0.2.7.1 Building scientific-0.3.4.9... Configuring vector-algorithms-0.7.0.1... Installed mwc-random-0.13.4.0 Building vector-algorithms-0.7.0.1... Configuring lifted-base-0.2.3.8... Installed scientific-0.3.4.9 Building lifted-base-0.2.3.8... Installed lifted-base-0.2.3.8 Configuring contravariant-1.4... Building contravariant-1.4... Installed contravariant-1.4 Configuring attoparsec-0.13.1.0... Configuring basic-prelude-0.6.1... Installed vector-algorithms-0.7.0.1 Building attoparsec-0.13.1.0... Building basic-prelude-0.6.1... Configuring resourcet-1.1.8.1... Installed basic-prelude-0.6.1 Building resourcet-1.1.8.1... Configuring comonad-5... Installed attoparsec-0.13.1.0 Configuring mono-traversable-1.0.1... Installed resourcet-1.1.8.1 Building mono-traversable-1.0.1... Building comonad-5... Installed comonad-5 Configuring aeson-1.0.2.1... Building aeson-1.0.2.1... Configuring conduit-1.2.8... Installed mono-traversable-1.0.1 Building conduit-1.2.8... Configuring bifunctors-5.4.1... Installed conduit-1.2.8 Building bifunctors-5.4.1... Installed aeson-1.0.2.1 Configuring binary-conduit-1.2.4.1... Building binary-conduit-1.2.4.1... Configuring conduit-extra-1.1.15... Installed binary-conduit-1.2.4.1 Building conduit-extra-1.1.15... Installed bifunctors-5.4.1 Configuring profunctors-5.2... Building profunctors-5.2... Configuring semigroupoids-5.1... Installed conduit-extra-1.1.15 Installed profunctors-5.2 Configuring conduit-combinators-1.0.8.3... Building conduit-combinators-1.0.8.3... Building semigroupoids-5.1... Installed conduit-combinators-1.0.8.3 Installed semigroupoids-5.1 Configuring free-4.12.4... Building free-4.12.4... Installed free-4.12.4 Configuring adjunctions-4.3... Building adjunctions-4.3... Installed adjunctions-4.3 Configuring kan-extensions-5.0.1... Building kan-extensions-5.0.1... Installed kan-extensions-5.0.1 Configuring lens-4.15.1... Building lens-4.15.1... Installed lens-4.15.1 Configuring sbp-0.51.2... Building sbp-0.51.2... Failed to install sbp-0.51.2 Build log ( /home/builder/.cabal/logs/sbp-0.51.2.log ): cabal: Entering directory '/tmp/cabal-tmp-12612/sbp-0.51.2' Configuring sbp-0.51.2... Building sbp-0.51.2... Preprocessing library sbp-0.51.2... [ 1 of 17] Compiling SwiftNav.SBP.Encoding ( src/SwiftNav/SBP/Encoding.hs, dist/build/SwiftNav/SBP/Encoding.o ) [ 2 of 17] Compiling SwiftNav.CRC16 ( src/SwiftNav/CRC16.hs, dist/build/SwiftNav/CRC16.o ) [ 3 of 17] Compiling SwiftNav.SBP.Types ( src/SwiftNav/SBP/Types.hs, dist/build/SwiftNav/SBP/Types.o ) [ 4 of 17] Compiling SwiftNav.SBP.TH ( src/SwiftNav/SBP/TH.hs, dist/build/SwiftNav/SBP/TH.o ) [ 5 of 17] Compiling SwiftNav.SBP.Acquisition ( src/SwiftNav/SBP/Acquisition.hs, dist/build/SwiftNav/SBP/Acquisition.o ) src/SwiftNav/SBP/Acquisition.hs:68:80: error: Ambiguous occurrence ‘stripPrefix’ It could refer to either ‘BasicPrelude.stripPrefix’, imported from ‘BasicPrelude’ at src/SwiftNav/SBP/Acquisition.hs:13:1-19 (and originally defined in ‘base-4.9.0.0:Data.OldList’) or ‘Data.ByteString.Lazy.stripPrefix’, imported from ‘Data.ByteString.Lazy’ at src/SwiftNav/SBP/Acquisition.hs:22:1-49 or ‘Data.ByteString.stripPrefix’, imported from ‘Data.ByteString’ at src/SwiftNav/SBP/Acquisition.hs:21:1-22 cabal: Leaving directory '/tmp/cabal-tmp-12612/sbp-0.51.2' cabal: Error: some packages failed to install: sbp-0.51.2 failed during the building phase. The exception was: ExitFailure 1