Resolving dependencies... Configuring network-2.6.3.1... Building network-2.6.3.1... Installed network-2.6.3.1 Downloading urldecode-1.0.0.0... Configuring urldecode-1.0.0.0... Building urldecode-1.0.0.0... Failed to install urldecode-1.0.0.0 Build log ( /home/builder/.cabal/logs/urldecode-1.0.0.0.log ): cabal: Entering directory '/tmp/cabal-tmp-30615/urldecode-1.0.0.0' Configuring urldecode-1.0.0.0... Building urldecode-1.0.0.0... Preprocessing executable 'urldecode' for urldecode-1.0.0.0... [1 of 1] Compiling Main ( src/urldecode.hs, dist/build/urldecode/urldecode-tmp/Main.o ) src/urldecode.hs:4:1: error: Failed to load interface for ‘Network.URI’ Perhaps you meant Network.BSD (from network-2.6.3.1) Use -v to see a list of the files searched for. cabal: Leaving directory '/tmp/cabal-tmp-30615/urldecode-1.0.0.0' cabal: Error: some packages failed to install: urldecode-1.0.0.0 failed during the building phase. The exception was: ExitFailure 1