Resolving dependencies... Configuring Vec-Transform-1.1... Warning: The 'license-file' field refers to the file '' which does not exist. Building Vec-Transform-1.1... Preprocessing library Vec-Transform-1.1... In-place registering Vec-Transform-1.1... Running Haddock for Vec-Transform-1.1... cabal: Haddock's internal GHC version must match the configured GHC version. The GHC version is 7.10.2 but haddock is using GHC version 7.8.3 Creating package registration file: /tmp/pkgConf-Vec-Transform-1336465782861021530.1 cabal: : does not exist Failed to install Vec-Transform-1.1 cabal: Error: some packages failed to install: Vec-Transform-1.1 failed during the final install step. The exception was: ExitFailure 1