Resolving dependencies...

/tmp/cabal-tmp-1724/HROOT-0.5.0.0/dist/setup/setup.hs:8:10:
    Could not find module ‘Config’
    It is a member of the hidden package ‘ghc-7.10.2’.
    Use -v to see a list of the files searched for.
Failed to install HROOT-0.5.0.0
cabal: Error: some packages failed to install:
HROOT-0.5.0.0 failed during the configure step. The exception was:
ExitFailure 1