Resolving dependencies...
Downloading hstats-0.3...
Configuring hstats-0.3...
Building hstats-0.3...
Preprocessing library hstats-0.3...

src/Math/Statistics.hs:1:1:
    Ambiguous module name `Prelude':
      it was found in multiple packages: base haskell98-2.0.0.2
Failed to install hstats-0.3
cabal: Error: some packages failed to install:
Metrics-0.1.2 depends on hstats-0.3 which failed to install.
hstats-0.3 failed during the building phase. The exception was:
ExitFailure 1