Resolving dependencies...
Downloading MonadLab-0.0...
Configuring MonadLab-0.0...
Building MonadLab-0.0...
Preprocessing library MonadLab-0.0...

MonadLab/MonadLab.hs:13:8:
    Ambiguous module name `Prelude':
      it was found in multiple packages: base haskell98-2.0.0.2
Failed to install MonadLab-0.0
cabal: Error: some packages failed to install:
MonadLab-0.0 failed during the building phase. The exception was:
ExitFailure 1