Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: hfsevents (user goal)
rejecting: hfsevents-0.1.5, 0.1.4, 0.1.3 (global constraint requires ==0.1.2)
trying: hfsevents-0.1.2
trying: base-4.7.0.1/installed-e4b... (dependency of hfsevents-0.1.2)
next goal: cereal (dependency of hfsevents-0.1.2)
rejecting: cereal-0.4.1.1, 0.4.1.0, 0.4.0.1, 0.4.0.0 (conflict: hfsevents =>
cereal>=0.3 && <0.4)
trying: cereal-0.3.5.2
rejecting: cereal-0.3.5.2:+split-base (conflict:
base==4.7.0.1/installed-e4b..., cereal-0.3.5.2:split-base => base>=4 && <4.7)
rejecting: cereal-0.3.5.2:-split-base (conflict:
base==4.7.0.1/installed-e4b..., cereal-0.3.5.2:split-base => base<3.0)
Dependency tree exhaustively searched.