Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: http-streams (user goal)
rejecting: http-streams-0.8.3.1, 0.7.2.6, 0.7.2.5, 0.7.2.4, 0.7.2.3, 0.7.2.2,
0.7.2.0, 0.7.1.2, 0.7.1.1, 0.7.0.2 (global constraint requires ==0.7.0.1)
trying: http-streams-0.7.0.1
next goal: base (dependency of http-streams-0.7.0.1)
rejecting: base-4.7.0.1/installed-e4b... (conflict: http-streams => base<0)
rejecting: base-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.