Resolving dependencies...
cabal: Could not resolve dependencies:
[__0] trying: motor-reflection-0.3.0 (user goal)
[__1] trying: motor-0.3.0 (dependency of motor-reflection)
[__2] trying: indexed-extras-0.2 (dependency of motor)
[__3] next goal: bifunctors (dependency of indexed-extras)
[__3] rejecting: bifunctors-5.5.2, bifunctors-5.5.1, bifunctors-5.5,
bifunctors-5.4.2, bifunctors-5.4.1 (conflict: indexed-extras =>
bifunctors<5.4)
[__3] trying: bifunctors-5.3
[__4] next goal: base (dependency of motor-reflection)
[__4] rejecting: base-4.10.1.0/installed-4.1... (conflict: bifunctors =>
base>=4 && <4.10)
[__4] rejecting: base-4.11.1.0, base-4.11.0.0, base-4.10.1.0, base-4.10.0.0,
base-4.9.1.0, base-4.9.0.0, base-4.8.2.0, base-4.8.1.0, base-4.8.0.0,
base-4.7.0.2, base-4.7.0.1, base-4.7.0.0, base-4.6.0.1, base-4.6.0.0,
base-4.5.1.0, base-4.5.0.0, base-4.4.1.0, base-4.4.0.0, base-4.3.1.0,
base-4.3.0.0, base-4.2.0.2, base-4.2.0.1, base-4.2.0.0, base-4.1.0.0,
base-4.0.0.0, base-3.0.3.2, base-3.0.3.1 (constraint from non-upgradeable
package requires installed instance)
After searching the rest of the dependency tree exhaustively, these were the
goals I've had most trouble fulfilling: bifunctors, base, indexed-extras,
motor, motor-reflection