Resolving dependencies...
Downloading ZipperAG-0.8...
Configuring ZipperAG-0.8...
Building ZipperAG-0.8...
Preprocessing library ZipperAG-0.8...

src/Language/Grammars/ZipperAG.hs:13:8:
    Could not find module ‘Data.Generics.Zipper’
    Use -v to see a list of the files searched for.
Failed to install ZipperAG-0.8
cabal: Error: some packages failed to install:
ZipperAG-0.8 failed during the building phase. The exception was:
ExitFailure 1