Resolving dependencies...
Downloading rmonad-0.4...
Warning: rmonad.cabal: A package using 'cabal-version: >=1.2' must use section
syntax. See the Cabal user guide for details.
Configuring rmonad-0.4...
Building rmonad-0.4...
Preprocessing library rmonad-0.4...

src/Control/RMonad.hs:68:8:
    Could not find module `Data.Suitable'
    Use -v to see a list of the files searched for.
Failed to install rmonad-0.4
cabal: Error: some packages failed to install:
rmonad-0.4 failed during the building phase. The exception was:
ExitFailure 1