Resolving dependencies...
cabal: Could not resolve dependencies:
[__0] trying: genvalidity-uuid-0.1.0.0 (user goal)
[__1] trying: validity-uuid-0.0.0.0 (dependency of genvalidity-uuid)
[__2] next goal: validity (dependency of genvalidity-uuid)
[__2] rejecting: validity-0.5.0.0 (conflict: validity-uuid => validity>=0.4 &&
<0.5)
[__2] rejecting: validity-0.4.0.4, validity-0.4.0.3, validity-0.4.0.2,
validity-0.4.0.1, validity-0.4.0.0, validity-0.3.3.0, validity-0.3.2.0,
validity-0.3.1.1, validity-0.3.0.4, validity-0.3.0.3, validity-0.3.0.2,
validity-0.3.0.1, validity-0.3.0.0, validity-0.2.0.0, validity-0.1.0.0
(conflict: genvalidity-uuid => validity>=0.5 && <0.6)
[__2] fail (backjumping, conflict set: genvalidity-uuid, validity,
validity-uuid)
After searching the rest of the dependency tree exhaustively, these were the
goals I've had most trouble fulfilling: genvalidity-uuid, validity,
validity-uuid