Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: representable-functors (user goal)
rejecting: representable-functors-3.2.0.2, 3.2.0.1, 3.1, 3.0.1, 3.0.0.3,
3.0.0.2, 3.0.0.1, 3.0, 2.5, 2.4.0.2, 2.4.0.1, 2.4, 2.2.1.1, 2.2.1, 2.2, 2.1.2,
2.1, 2.0.2, 2.0.1, 2.0.0.5, 2.0.0.4, 2.0.0.3, 2.0.0.1, 2.0, 1.8.0, 0.5.0,
0.4.4, 0.4.3, 0.4.2, 0.4.1, 0.4.0, 0.3.0.3, 0.3.0.2, 0.3.0.1, 0.3.0 (global
constraint requires ==0.2.0)
trying: representable-functors-0.2.0
next goal: base (dependency of representable-functors-0.2.0)
rejecting: base-4.8.1.0/installed-4f7... (conflict: representable-functors =>
base>=4 && <4.4)
rejecting: base-4.8.1.0, 4.8.0.0, 4.7.0.2, 4.7.0.1, 4.7.0.0, 4.6.0.1, 4.6.0.0,
4.5.1.0, 4.5.0.0, 4.4.1.0, 4.4.0.0, 4.3.1.0, 4.3.0.0, 4.2.0.2, 4.2.0.1,
4.2.0.0, 4.1.0.0, 4.0.0.0, 3.0.3.2, 3.0.3.1 (global constraint requires
installed instance)
Dependency tree exhaustively searched.