Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: persistent-mongoDB (user goal)
rejecting: persistent-mongoDB-2.1.4, 2.1.2.2, 2.1.2.1, 2.1.2, 2.1.1, 2.1,
1.4.4.4, 1.4.4.3, 1.4.3, 1.4.2.1, 1.4.2, 1.4.1.1, 1.4.1, 1.3.3.1, 1.3.3,
1.3.2, 1.3.1.1, 1.3.0.4, 1.3.0.3, 1.3.0.2, 1.3.0.1, 1.2.3, 1.2.2, 1.2.1.2,
1.2.1.1, 1.2.1, 1.2.0.1, 1.2.0, 1.1.6, 1.1.5.2, 1.1.5.1, 1.1.5, 1.1.4, 1.1.3,
1.1.2, 1.1.0, 1.0.1.0, 1.0.0.1, 1.0.0, 0.9.0.3, 0.9.0.2, 0.9.0.1, 0.9.0, 0.8.0
(global constraint requires ==0.7.0)
trying: persistent-mongoDB-0.7.0
trying: aeson-0.10.0.0 (dependency of persistent-mongoDB-0.7.0)
next goal: bytestring (dependency of persistent-mongoDB-0.7.0)
rejecting: bytestring-0.10.6.0/installed-236..., 0.10.6.0, 0.10.4.1, 0.10.4.0,
0.10.2.0, 0.10.0.2, 0.10.0.1, 0.10.0.0 (conflict: persistent-mongoDB =>
bytestring>=0.9 && <0.10)
rejecting: bytestring-0.9.2.1, 0.9.2.0, 0.9.1.10, 0.9.1.9, 0.9.1.8, 0.9.1.7,
0.9.1.6, 0.9.1.5, 0.9.1.4, 0.9.1.3, 0.9.1.2, 0.9.1.1, 0.9.1.0, 0.9.0.4,
0.9.0.3, 0.9.0.2, 0.9.0.1, 0.9 (conflict: aeson => bytestring>=0.10.4.0)
Dependency tree exhaustively searched.