Resolving dependencies...
Downloading hpc-tracer-0.3.1...
Configuring hpc-tracer-0.3.1...
Building hpc-tracer-0.3.1...
Preprocessing executable 'hpc-tracer' for hpc-tracer-0.3.1...

src/Main.hs:1:1:
    Ambiguous module name `Prelude':
      it was found in multiple packages: base haskell98-2.0.0.2
Failed to install hpc-tracer-0.3.1
cabal: Error: some packages failed to install:
hpc-tracer-0.3.1 failed during the building phase. The exception was:
ExitFailure 1