Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: snap (user goal)
rejecting: snap-0.14.0.4, 0.14.0.3, 0.14.0.2, 0.14.0.1, 0.14.0, 0.13.3.2,
0.13.3.1, 0.13.3, 0.13.2.9, 0.13.2.8, 0.13.2.7, 0.13.2.6, 0.13.2.5, 0.13.2.4,
0.13.2.3, 0.13.2.2, 0.13.2.1, 0.13.2.0, 0.13.1.2, 0.13.1.1, 0.13.1, 0.13.0.4,
0.13.0.3, 0.13.0.2, 0.13.0.1, 0.13.0, 0.12.1, 0.12.0, 0.11.3.1, 0.11.3,
0.11.2.2, 0.11.2.1, 0.11.2, 0.11.1, 0.11.0, 0.10.0.1, 0.10.0, 0.9.2.2,
0.9.2.1, 0.9.2, 0.9.1.1 (global constraint requires ==0.9.1)
trying: snap-0.9.1
trying: base-4.7.0.1/installed-e4b... (dependency of snap-0.9.1)
next goal: unix (dependency of snap-0.9.1)
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 (conflict: snap => unix>=2.2.0.0 && <2.6)
rejecting: unix-2.5.1.1, 2.5.1.0 (conflict: base==4.7.0.1/installed-e4b...,
unix => base>=4.5 && <4.6)
rejecting: unix-2.5.0.0 (conflict: base==4.7.0.1/installed-e4b..., unix =>
base>=4.2 && <4.5)
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 (conflict:
base==4.7.0.1/installed-e4b..., unix => base<4.3)
rejecting: unix-2.0 (conflict: snap => unix>=2.2.0.0 && <2.6)
Dependency tree exhaustively searched.