Resolving dependencies...
Downloading yackage-0.2.1...
Configuring yackage-0.2.1...
cabal: Package yackage-0.2.1 can't be built on this system.
Failed to install yackage-0.2.1
cabal: Error: some packages failed to install:
yackage-0.2.1 failed during the building phase. The exception was:
ExitFailure 1