cabal: cannot configure pure-priority-queue-0.14. It requires base >=3.0.3.1
&& <4
For the dependency on base >=3.0.3.1 && <4 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