Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: hog (user goal)
rejecting: hog-0.1.1 (global constraint requires ==0.1)
trying: hog-0.1
trying: base-4.7.0.1/installed-e4b... (dependency of hog-0.1)
next goal: unix (dependency of hog-0.1)
rejecting: unix-2.7.0.1/installed-0d8..., 2.7.1.0, 2.7.0.1, 2.7.0.0, 2.6.0.1,
2.6.0.0, 2.5.1.1, 2.5.1.0, 2.5.0.0 (conflict: hog => unix>=2.4 && <2.5)
rejecting: unix-2.4.2.0, 2.4.1.0 (conflict: base==4.7.0.1/installed-e4b...,
unix => base>=4.2 && <4.4)
rejecting: unix-2.4.0.2, 2.4.0.1 (conflict: base==4.7.0.1/installed-e4b...,
unix => base>=4.2 && <4.3)
rejecting: unix-2.4.0.0 (conflict: base==4.7.0.1/installed-e4b..., unix =>
base>=4.1 && <4.3)
rejecting: unix-2.3.2.0, 2.3.1.0, 2.3.0.0, 2.2.0.0, 2.0 (conflict: hog =>
unix>=2.4 && <2.5)
Dependency tree exhaustively searched.