cabal: cannot configure emgm-0.3.1. It requires base >=3.0 && <4.0
For the dependency on base >=3.0 && <4.0 there are these packages:
base-3.0.3.1 and base-3.0.3.2. However none of them are available.
base-3.0.3.1 was excluded because of the top level dependency base -any
base-3.0.3.2 was excluded because of the top level dependency base -any