Resolving dependencies...
cabal: Could not resolve dependencies:
[__0] trying: persistent-qq-2.9.0 (user goal)
[__1] next goal: persistent (dependency of persistent-qq)
[__1] rejecting: persistent-2.9.0, persistent-2.8.2, persistent-2.8.1,
persistent-2.8.0, persistent-2.7.3.1, persistent-2.7.3, persistent-2.7.1,
persistent-2.7.0, persistent-2.6.1, persistent-2.6, persistent-2.5,
persistent-2.2.4.1, persistent-2.2.4, persistent-2.2.3, persistent-2.2.2.1,
persistent-2.2.2, persistent-2.2.1, persistent-2.2, persistent-2.1.6,
persistent-2.1.5, persistent-2.1.4, persistent-2.1.3, persistent-2.1.2,
persistent-2.1.1.7, persistent-2.1.1.6, persistent-2.1.1.5,
persistent-2.1.1.4, persistent-2.1.1.3, persistent-2.1.1.2,
persistent-2.1.1.1, persistent-2.1.1, persistent-2.1.0.2, persistent-2.1.0.1,
persistent-2.1, persistent-1.3.3, persistent-1.3.2, persistent-1.3.1.1,
persistent-1.3.1, persistent-1.3.0.6, persistent-1.3.0.5, persistent-1.3.0.4,
persistent-1.3.0.3, persistent-1.3.0.2, persistent-1.3.0, persistent-1.2.3.3,
persistent-1.2.3.2, persistent-1.2.3.0, persistent-1.2.2.0,
persistent-1.2.1.2, persistent-1.2.1.1, persistent-1.2.1, persistent-1.2.0.2,
persistent-1.2.0.1, persistent-1.2.0, persistent-1.1.5.1, persistent-1.1.5,
persistent-1.1.4, persistent-1.1.3.2, persistent-1.1.3.1, persistent-1.1.3,
persistent-1.1.2, persistent-1.1.0.1, persistent-1.1.0, persistent-1.0.2.2,
persistent-1.0.2.1, persistent-1.0.2, persistent-1.0.1.3, persistent-1.0.1.2,
persistent-1.0.1.1, persistent-1.0.1, persistent-1.0.0, persistent-0.9.0.4,
persistent-0.9.0.3, persistent-0.9.0.2, persistent-0.9.0.1, persistent-0.9.0,
persistent-0.8.0.2, persistent-0.8.0.1, persistent-0.8.0, persistent-0.7.0.1,
persistent-0.7.0, persistent-0.6.4.4, persistent-0.6.4.3, persistent-0.6.4.2,
persistent-0.6.4.1, persistent-0.6.4, persistent-0.6.3, persistent-0.6.2,
persistent-0.6.1, persistent-0.5.1, persistent-0.5.0, persistent-0.4.2,
persistent-0.4.1, persistent-0.4.0.1, persistent-0.4.0, persistent-0.3.1.3,
persistent-0.3.1.2, persistent-0.3.1.1, persistent-0.3.1, persistent-0.3.0.1,
persistent-0.3.0, persistent-0.2.4.1, persistent-0.2.4, persistent-0.2.3,
persistent-0.2.2.2, persistent-0.2.2.1, persistent-0.2.2, persistent-0.2.1,
persistent-0.2.0.2, persistent-0.2.0.1, persistent-0.2.0, persistent-0.1.0,
persistent-0.0.0.1, persistent-0.0.0, persistent-2.7.2, persistent-2.0.8,
persistent-2.0.7.1, persistent-2.0.7, persistent-2.0.5.1, persistent-2.0.5,
persistent-2.0.4, persistent-2.0.3.1, persistent-2.0.3, persistent-2.0.2,
persistent-2.0.1.1, persistent-2.0.1, persistent-2.0.0.1, persistent-2.0.0,
persistent-1.2.3.1 (conflict: persistent-qq => persistent>=2.9.1)
[__1] fail (backjumping, conflict set: persistent, persistent-qq)
After searching the rest of the dependency tree exhaustively, these were the
goals I've had most trouble fulfilling: persistent-qq, persistent