Resolving dependencies...
cabal: Could not resolve dependencies:
trying: har-0.1.0.0 (user goal)
next goal: base (dependency of har-0.1.0.0)
rejecting: base-4.7.0.1/installed-e4b... (conflict: har => base>=4.6 && <4.7)
rejecting: base-4.7.0.2, 4.7.0.1, 4.7.0.0, 4.6.0.1, 4.6.0.0, 4.5.1.0, 4.5.0.0,
4.4.1.0, 4.4.0.0, 4.3.1.0, 4.3.0.0, 4.2.0.2, 4.2.0.1, 4.2.0.0, 4.1.0.0,
4.0.0.0, 3.0.3.2, 3.0.3.1 (global constraint requires installed instance)
Dependency tree exhaustively searched.