Resolving dependencies... Downloading c2hs-0.15.0... [1 of 1] Compiling Main ( /tmp/c2hs-0.15.0-20805/c2hs-0.15.0/Setup.hs, /tmp/c2hs-0.15.0-20805/c2hs-0.15.0/dist/setup/Main.o ) Linking /tmp/c2hs-0.15.0-20805/c2hs-0.15.0/dist/setup/setup ... Configuring c2hs-0.15.0... Warning: No 'build-type' specified. If you do not need a custom Setup.hs or ./configure script then use 'build-type: Simple'. Warning: 'hs-source-dirs: base/admin' directory does not exist. Building c2hs-0.15.0... Preprocessing library c2hs-0.15.0... In-place registering c2hs-0.15.0... Preprocessing executable 'c2hs' for c2hs-0.15.0... base/state/CIO.hs:71:8: Could not find module `System.Cmd' It is a member of the hidden package `process-1.1.0.2'. Perhaps you need to add `process' to the build-depends in your .cabal file. Use -v to see a list of the files searched for. Failed to install c2hs-0.15.0 cabal: Error: some packages failed to install: c2hs-0.15.0 failed during the building phase. The exception was: ExitFailure 1