Resolving dependencies... Configuring WordNet-0.1.1... Building WordNet-0.1.1... Failed to install WordNet-0.1.1 Build log ( /home/builder/.cabal/logs/WordNet-0.1.1.log ): cabal: Entering directory '/tmp/cabal-tmp-26626/WordNet-0.1.1' Configuring WordNet-0.1.1... Warning: Instead of 'ghc-options: -cpp' use 'extensions: CPP' Building WordNet-0.1.1... Preprocessing library WordNet-0.1.1... on the commandline: warning: -fglasgow-exts is deprecated: Use individual extensions instead [1 of 7] Compiling NLP.WordNet.PrimTypes ( NLP/WordNet/PrimTypes.hs, dist/build/NLP/WordNet/PrimTypes.o ) NLP/WordNet/PrimTypes.hs:3:1: error: Failed to load interface for ‘Data.Array’ It is a member of the hidden package ‘array-0.5.1.1’. Perhaps you need to add ‘array’ 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-26626/WordNet-0.1.1' cabal: Error: some packages failed to install: WordNet-0.1.1 failed during the building phase. The exception was: ExitFailure 1