cabal: cannot configure arrows-0.4. It requires base >=2.0 && <3.1
For the dependency on base >=2.0 && <3.1 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