Resolving dependencies... cabal: Could not resolve dependencies: trying: genvalidity-time-0.0.0.0 (user goal) next goal: genvalidity (dependency of genvalidity-time-0.0.0.0) rejecting: genvalidity-0.3.0.0, genvalidity-0.2.0.4, genvalidity-0.2.0.3, genvalidity-0.2.0.2, genvalidity-0.2.0.1, genvalidity-0.2.0.0, genvalidity-0.1.0.0 (conflict: genvalidity-time => genvalidity>=0.3.0.1 && <0.4) Dependency tree exhaustively searched.