Resolving dependencies... Configuring network-2.6.3.1... Building network-2.6.3.1... Installed network-2.6.3.1 Configuring urldecode-1.0.0.2... Building urldecode-1.0.0.2... Failed to install urldecode-1.0.0.2 Build log ( /home/builder/.cabal/logs/urldecode-1.0.0.2.log ): cabal: Entering directory '/tmp/cabal-tmp-10503/urldecode-1.0.0.2' Configuring urldecode-1.0.0.2... Building urldecode-1.0.0.2... Preprocessing executable 'urldecode' for urldecode-1.0.0.2... [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-10503/urldecode-1.0.0.2' cabal: Error: some packages failed to install: urldecode-1.0.0.2 failed during the building phase. The exception was: ExitFailure 1