Resolving dependencies...
Downloading HMM-0.2.1...
Configuring HMM-0.2.1...
Building HMM-0.2.1...
Preprocessing library HMM-0.2.1...

Data/HMM.hs:1:1:
    Could not find module `Prelude'
    It is a member of the hidden package `base'.
    Perhaps you need to add `base' to the build-depends in your .cabal file.
    It is a member of the hidden package `haskell98-2.0.0.2'.
    Perhaps you need to add `haskell98' to the build-depends in your .cabal file.
    It is a member of the hidden package `haskell2010-1.1.1.0'.
    Perhaps you need to add `haskell2010' to the build-depends in your .cabal file.
    Use -v to see a list of the files searched for.
Failed to install HMM-0.2.1
cabal: Error: some packages failed to install:
HMM-0.2.1 failed during the building phase. The exception was:
ExitFailure 1