Resolving dependencies...
Configuring greencard-3.0.1...
Building greencard-3.0.1...
Preprocessing executable 'greencard' for greencard-3.0.1...
unused terminals: 1
[ 1 of 21] Compiling ErrMonad         ( src/ErrMonad.lhs, dist/build/greencard/greencard-tmp/ErrMonad.o )

src/ErrMonad.lhs:42:10:
    No instance for (Applicative (ErrM a))
      arising from the superclasses of an instance declaration
    In the instance declaration for ‘Monad (ErrM a)’
Failed to install greencard-3.0.1
cabal: Error: some packages failed to install:
greencard-3.0.1 failed during the building phase. The exception was:
ExitFailure 1