Resolving dependencies... Configuring data-default-class-0.1.2.0... Configuring call-stack-0.1.0... Building data-default-class-0.1.2.0... Building call-stack-0.1.0... Installed call-stack-0.1.0 Configuring dlist-0.8.0.2... Configuring monoid-owns-2010.5.29... Installed data-default-class-0.1.2.0 Building dlist-0.8.0.2... Building monoid-owns-2010.5.29... Configuring mtl-2.2.1... Failed to install monoid-owns-2010.5.29 Build log ( /home/builder/.cabal/logs/monoid-owns-2010.5.29.log ): cabal: Entering directory '/tmp/cabal-tmp-19048/monoid-owns-2010.5.29' Warning: monoid-owns.cabal: Unknown fields: build-depends (line 11) Fields allowed in this section: name, version, cabal-version, build-type, license, license-file, license-files, copyright, maintainer, stability, homepage, package-url, bug-reports, synopsis, description, category, author, tested-with, data-files, data-dir, extra-source-files, extra-tmp-files, extra-doc-files Configuring monoid-owns-2010.5.29... Building monoid-owns-2010.5.29... Preprocessing library monoid-owns-2010.5.29... [1 of 1] Compiling Data.Monoid.Owns ( src/Data/Monoid/Owns.hs, dist/build/Data/Monoid/Owns.o ) src/Data/Monoid/Owns.hs:39:10: error: Ambiguous occurrence ‘Monoid’ It could refer to either ‘Prelude.Monoid’, imported from ‘Prelude’ at src/Data/Monoid/Owns.hs:3:1-27 (and originally defined in ‘GHC.Base’) or ‘Data.Monoid.Owns.Monoid’, defined at src/Data/Monoid/Owns.hs:15:1 src/Data/Monoid/Owns.hs:43:10: error: Ambiguous occurrence ‘Monoid’ It could refer to either ‘Prelude.Monoid’, imported from ‘Prelude’ at src/Data/Monoid/Owns.hs:3:1-27 (and originally defined in ‘GHC.Base’) or ‘Data.Monoid.Owns.Monoid’, defined at src/Data/Monoid/Owns.hs:15:1 src/Data/Monoid/Owns.hs:47:10: error: Ambiguous occurrence ‘Monoid’ It could refer to either ‘Prelude.Monoid’, imported from ‘Prelude’ at src/Data/Monoid/Owns.hs:3:1-27 (and originally defined in ‘GHC.Base’) or ‘Data.Monoid.Owns.Monoid’, defined at src/Data/Monoid/Owns.hs:15:1 src/Data/Monoid/Owns.hs:51:10: error: Ambiguous occurrence ‘Monoid’ It could refer to either ‘Prelude.Monoid’, imported from ‘Prelude’ at src/Data/Monoid/Owns.hs:3:1-27 (and originally defined in ‘GHC.Base’) or ‘Data.Monoid.Owns.Monoid’, defined at src/Data/Monoid/Owns.hs:15:1 src/Data/Monoid/Owns.hs:57:10: error: Ambiguous occurrence ‘Monoid’ It could refer to either ‘Prelude.Monoid’, imported from ‘Prelude’ at src/Data/Monoid/Owns.hs:3:1-27 (and originally defined in ‘GHC.Base’) or ‘Data.Monoid.Owns.Monoid’, defined at src/Data/Monoid/Owns.hs:15:1 src/Data/Monoid/Owns.hs:61:22: error: Ambiguous occurrence ‘Monoid’ It could refer to either ‘Prelude.Monoid’, imported from ‘Prelude’ at src/Data/Monoid/Owns.hs:3:1-27 (and originally defined in ‘GHC.Base’) or ‘Data.Monoid.Owns.Monoid’, defined at src/Data/Monoid/Owns.hs:15:1 src/Data/Monoid/Owns.hs:65:10: error: Ambiguous occurrence ‘Monoid’ It could refer to either ‘Prelude.Monoid’, imported from ‘Prelude’ at src/Data/Monoid/Owns.hs:3:1-27 (and originally defined in ‘GHC.Base’) or ‘Data.Monoid.Owns.Monoid’, defined at src/Data/Monoid/Owns.hs:15:1 src/Data/Monoid/Owns.hs:71:34: error: Ambiguous occurrence ‘Monoid’ It could refer to either ‘Prelude.Monoid’, imported from ‘Prelude’ at src/Data/Monoid/Owns.hs:3:1-27 (and originally defined in ‘GHC.Base’) or ‘Data.Monoid.Owns.Monoid’, defined at src/Data/Monoid/Owns.hs:15:1 src/Data/Monoid/Owns.hs:76:44: error: Ambiguous occurrence ‘Monoid’ It could refer to either ‘Prelude.Monoid’, imported from ‘Prelude’ at src/Data/Monoid/Owns.hs:3:1-27 (and originally defined in ‘GHC.Base’) or ‘Data.Monoid.Owns.Monoid’, defined at src/Data/Monoid/Owns.hs:15:1 src/Data/Monoid/Owns.hs:81:54: error: Ambiguous occurrence ‘Monoid’ It could refer to either ‘Prelude.Monoid’, imported from ‘Prelude’ at src/Data/Monoid/Owns.hs:3:1-27 (and originally defined in ‘GHC.Base’) or ‘Data.Monoid.Owns.Monoid’, defined at src/Data/Monoid/Owns.hs:15:1 src/Data/Monoid/Owns.hs:88:17: error: Ambiguous occurrence ‘Monoid’ It could refer to either ‘Prelude.Monoid’, imported from ‘Prelude’ at src/Data/Monoid/Owns.hs:3:1-27 (and originally defined in ‘GHC.Base’) or ‘Data.Monoid.Owns.Monoid’, defined at src/Data/Monoid/Owns.hs:15:1 src/Data/Monoid/Owns.hs:94:10: error: Ambiguous occurrence ‘Monoid’ It could refer to either ‘Prelude.Monoid’, imported from ‘Prelude’ at src/Data/Monoid/Owns.hs:3:1-27 (and originally defined in ‘GHC.Base’) or ‘Data.Monoid.Owns.Monoid’, defined at src/Data/Monoid/Owns.hs:15:1 src/Data/Monoid/Owns.hs:99:10: error: Ambiguous occurrence ‘Monoid’ It could refer to either ‘Prelude.Monoid’, imported from ‘Prelude’ at src/Data/Monoid/Owns.hs:3:1-27 (and originally defined in ‘GHC.Base’) or ‘Data.Monoid.Owns.Monoid’, defined at src/Data/Monoid/Owns.hs:15:1 src/Data/Monoid/Owns.hs:103:10: error: Ambiguous occurrence ‘Monoid’ It could refer to either ‘Prelude.Monoid’, imported from ‘Prelude’ at src/Data/Monoid/Owns.hs:3:1-27 (and originally defined in ‘GHC.Base’) or ‘Data.Monoid.Owns.Monoid’, defined at src/Data/Monoid/Owns.hs:15:1 src/Data/Monoid/Owns.hs:107:21: error: Ambiguous occurrence ‘Monoid’ It could refer to either ‘Prelude.Monoid’, imported from ‘Prelude’ at src/Data/Monoid/Owns.hs:3:1-27 (and originally defined in ‘GHC.Base’) or ‘Data.Monoid.Owns.Monoid’, defined at src/Data/Monoid/Owns.hs:15:1 src/Data/Monoid/Owns.hs:111:21: error: Ambiguous occurrence ‘Monoid’ It could refer to either ‘Prelude.Monoid’, imported from ‘Prelude’ at src/Data/Monoid/Owns.hs:3:1-27 (and originally defined in ‘GHC.Base’) or ‘Data.Monoid.Owns.Monoid’, defined at src/Data/Monoid/Owns.hs:15:1 src/Data/Monoid/Owns.hs:115:10: error: Ambiguous occurrence ‘Monoid’ It could refer to either ‘Prelude.Monoid’, imported from ‘Prelude’ at src/Data/Monoid/Owns.hs:3:1-27 (and originally defined in ‘GHC.Base’) or ‘Data.Monoid.Owns.Monoid’, defined at src/Data/Monoid/Owns.hs:15:1 cabal: Leaving directory '/tmp/cabal-tmp-19048/monoid-owns-2010.5.29' Building mtl-2.2.1... Configuring old-locale-1.0.0.7... Installed dlist-0.8.0.2 Building old-locale-1.0.0.7... Configuring parallel-3.2.1.0... Installed old-locale-1.0.0.7 Building parallel-3.2.1.0... Configuring utf8-string-1.0.1.1... Installed mtl-2.2.1 Building utf8-string-1.0.1.1... Configuring text-1.2.2.1... Installed parallel-3.2.1.0 Building text-1.2.2.1... Configuring HUnit-1.5.0.0... Installed utf8-string-1.0.1.1 Building HUnit-1.5.0.0... Installed HUnit-1.5.0.0 Configuring data-default-instances-containers-0.0.1... Building data-default-instances-containers-0.0.1... Configuring data-default-instances-dlist-0.0.1... Installed data-default-instances-containers-0.0.1 Building data-default-instances-dlist-0.0.1... Configuring old-time-1.1.0.3... Installed data-default-instances-dlist-0.0.1 Building old-time-1.1.0.3... Configuring mtlparse-0.1.4.0... Installed old-time-1.1.0.3 Building mtlparse-0.1.4.0... Configuring data-default-instances-old-locale-0.0.1... Installed text-1.2.2.1 Building data-default-instances-old-locale-0.0.1... Installed mtlparse-0.1.4.0 Configuring regexpr-0.5.4... Building regexpr-0.5.4... Configuring parsec-3.1.11... Installed data-default-instances-old-locale-0.0.1 Building parsec-3.1.11... Configuring data-default-0.7.1.1... Installed regexpr-0.5.4 Building data-default-0.7.1.1... Installed data-default-0.7.1.1 Installed parsec-3.1.11 cabal: Error: some packages failed to install: moe-2010.9.29 depends on monoid-owns-2010.5.29 which failed to install. monoid-owns-2010.5.29 failed during the building phase. The exception was: ExitFailure 1 mps-2010.11.28 depends on monoid-owns-2010.5.29 which failed to install.