Resolving dependencies...
Downloading FM-SBLEX-3.0...
Configuring FM-SBLEX-3.0...
Building FM-SBLEX-3.0...
Preprocessing executable 'saldo' for FM-SBLEX-3.0...

src/saldo/Main.hs:1:1:
    Ambiguous module name `Prelude':
      it was found in multiple packages: base haskell98-2.0.0.2
Failed to install FM-SBLEX-3.0
cabal: Error: some packages failed to install:
FM-SBLEX-3.0 failed during the building phase. The exception was:
ExitFailure 1