Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: ad (user goal)
rejecting: ad-4.3.2.1, ad-4.3.2, ad-4.3.1, ad-4.3, ad-4.2.4, ad-4.2.3,
ad-4.2.2, ad-4.2.1.1, ad-4.2.1, ad-4.2.0.1, ad-4.2, ad-4.1, ad-4.0.0.1,
ad-4.0, ad-3.4, ad-3.3.1.1, ad-3.3.1, ad-3.3.0.1, ad-3.2.2, ad-3.2.1, ad-3.2,
ad-3.1.4, ad-3.1.3, ad-3.1.2, ad-3.1.1, ad-3.0.1, ad-3.0, ad-1.5.0.2,
ad-1.5.0.1, ad-1.5, ad-1.4, ad-1.3.1, ad-1.3.0.1, ad-1.3, ad-1.2.0.2,
ad-1.2.0.1, ad-1.2.0, ad-1.1.3, ad-1.1.1, ad-1.1.0.1, ad-1.1.0, ad-1.0.6,
ad-1.0.5, ad-1.0.4, ad-1.0.3, ad-1.0.2, ad-1.0.1, ad-1.0.0 (constraint from
user target requires ==0.47.0)
trying: ad-0.47.0
trying: base-4.9.0.0/installed-4.9... (dependency of ad-0.47.0)
next goal: streams (dependency of ad-0.47.0)
rejecting: streams-3.3, streams-3.2.1, streams-3.2, streams-3.1.1,
streams-3.1, streams-3.0.1.1, streams-3.0.1, streams-3.0.0.1, streams-3.0,
streams-0.8.2, streams-0.8.1, streams-0.8.0.4, streams-0.8.0.3,
streams-0.8.0.2, streams-0.8.0.1, streams-0.8.0, streams-0.7.2, streams-0.7.1,
streams-0.7.0, streams-0.6.3, streams-0.6.1.2, streams-0.6.1.1,
streams-0.6.0.1, streams-0.6.0 (conflict: ad => streams>=0.5 && <0.6)
rejecting: streams-0.5.1.2, streams-0.5.1.1, streams-0.5.1, streams-0.5.0
(conflict: base==4.9.0.0/installed-4.9..., streams => base>=4 && <4.4)
rejecting: streams-0.4, streams-0.3.1, streams-0.3, streams-0.2, streams-0.1.1
(conflict: ad => streams>=0.5 && <0.6)
Dependency tree exhaustively searched.