Resolving dependencies...
Downloading normaldistribution-1.1.0.2...
Configuring normaldistribution-1.1.0.2...
Building normaldistribution-1.1.0.2...
Preprocessing library normaldistribution-1.1.0.2...

Data/Random/Normal.hs:1:1:
    Ambiguous module name `Prelude':
      it was found in multiple packages: base haskell98-2.0.0.2
Failed to install normaldistribution-1.1.0.2
cabal: Error: some packages failed to install:
normaldistribution-1.1.0.2 failed during the building phase. The exception
was:
ExitFailure 1