Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: haeredes (user goal)
rejecting: haeredes-0.4.4, haeredes-0.4.3, haeredes-0.4.2, haeredes-0.4.1
(constraint from user target requires ==0.4.0)
trying: haeredes-0.4.0
trying: tasty-quickcheck-0.8.4 (dependency of haeredes-0.4.0)
next goal: tasty (dependency of haeredes-0.4.0)
rejecting: tasty-0.11.0.4, tasty-0.11.0.3, tasty-0.11.0.2, tasty-0.11.0.1,
tasty-0.11, tasty-0.10.1.2, tasty-0.10.1.1, tasty-0.10.1, tasty-0.10.0.4,
tasty-0.10.0.3, tasty-0.10.0.2, tasty-0.10.0.1, tasty-0.10, tasty-0.9.0.1
(conflict: haeredes => tasty==0.8.*)
rejecting: tasty-0.8.1.3, tasty-0.8.1.2, tasty-0.8.1.1, tasty-0.8.0.4,
tasty-0.8.0.2, tasty-0.8 (conflict: tasty-quickcheck => tasty>=0.10.1)
rejecting: tasty-0.7, tasty-0.6, tasty-0.5.2.1, tasty-0.5.2, tasty-0.5.1,
tasty-0.5, tasty-0.4.2, tasty-0.4.1.1, tasty-0.4.0.1, tasty-0.4, tasty-0.3.1,
tasty-0.3, tasty-0.2, tasty-0.1.1, tasty-0.1 (conflict: haeredes =>
tasty==0.8.*)
Dependency tree exhaustively searched.