Resolving dependencies... Configuring byteable-0.1.1... Configuring memory-0.13... Building byteable-0.1.1... Building memory-0.13... Configuring transformers-compat-0.5.1.4... Installed byteable-0.1.1 Building transformers-compat-0.5.1.4... Installed transformers-compat-0.5.1.4 Configuring tagged-0.8.5... Building tagged-0.8.5... Installed memory-0.13 Configuring securemem-0.1.9... Building securemem-0.1.9... Installed tagged-0.8.5 Installed securemem-0.1.9 Configuring crypto-cipher-types-0.0.9... Building crypto-cipher-types-0.0.9... Installed crypto-cipher-types-0.0.9 Configuring nettle-0.1.1... Failed to install nettle-0.1.1 Build log ( /home/builder/.cabal/logs/nettle-0.1.1.log ): cabal: Entering directory '/tmp/cabal-tmp-17751/nettle-0.1.1' Configuring nettle-0.1.1... cabal: Missing dependency on a foreign library: * Missing C library: nettle This problem can usually be solved by installing the system package that provides this library (you may need the "-dev" version). If the library is already installed but in a non-standard location then you can use the flags --extra-include-dirs= and --extra-lib-dirs= to specify where it is. cabal: Leaving directory '/tmp/cabal-tmp-17751/nettle-0.1.1' cabal: Error: some packages failed to install: nettle-0.1.1 failed during the configure step. The exception was: ExitFailure 1