Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: microlens (user goal)
rejecting: microlens-0.4.8.1, microlens-0.4.8.0, microlens-0.4.7.0,
microlens-0.4.6.0, microlens-0.4.5.0, microlens-0.4.4.3, microlens-0.4.4.2,
microlens-0.4.4.1, microlens-0.4.4.0, microlens-0.4.3.0, microlens-0.4.2.1,
microlens-0.4.2.0, microlens-0.4.1.0, microlens-0.4.0.1, microlens-0.3.5.1,
microlens-0.3.5.0, microlens-0.3.4.1, microlens-0.3.4.0, microlens-0.3.3.0,
microlens-0.3.2.0, microlens-0.3.1.0, microlens-0.3.0.0, microlens-0.2.0.0,
microlens-0.1.5.0, microlens-0.1.3.0, microlens-0.1.2.0, microlens-0.1.1.0,
microlens-0.1.0.0 (constraint from user target requires ==0.4.8.2)
trying: microlens-0.4.8.2
next goal: base (dependency of microlens-0.4.8.2)
rejecting: base-4.10.1.0/installed-4.1... (conflict: microlens => base>1 &&
<1)
rejecting: 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: microlens, base