Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: hoopl (user goal)
rejecting: hoopl-3.10.2.0, 3.10.1.0, 3.10.0.2, 3.10.0.1, 3.10.0.0, 3.9.0.0,
3.8.7.4, 3.8.7.3, 3.8.7.1, 3.8.7.0, 3.8.6.0, 3.8.3.0, 3.7.12.1, 3.7.8.0,
3.7.7.0, 3.7.4.0, 3.7.3.5, 3.7.3.4, 3.7.3.3, 3.7.2.2, 3.7.1.0 (global
constraint requires ==3.7.0.0)
trying: hoopl-3.7.0.0
next goal: base (dependency of hoopl-3.7.0.0)
rejecting: base-4.8.1.0/installed-4f7... (conflict: hoopl => base>=3 && <4.8)
rejecting: base-4.8.1.0, 4.8.0.0, 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.