Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: hdocs (user goal)
rejecting: hdocs-0.5.0.1, hdocs-0.5.0.0 (constraint from user target requires
==0.4.4.2)
trying: hdocs-0.4.4.2
trying: base-4.9.0.0/installed-4.9... (dependency of hdocs-0.4.4.2)
next goal: MonadCatchIO-transformers (dependency of hdocs-0.4.4.2)
rejecting: MonadCatchIO-transformers-0.3.1.3 (conflict:
base==4.9.0.0/installed-4.9..., MonadCatchIO-transformers => base<4.9)
rejecting: MonadCatchIO-transformers-0.3.1.2,
MonadCatchIO-transformers-0.3.1.1, MonadCatchIO-transformers-0.3.1.0
(conflict: base==4.9.0.0/installed-4.9..., MonadCatchIO-transformers =>
base<4.8)
rejecting: MonadCatchIO-transformers-0.3.0.0 (conflict:
base==4.9.0.0/installed-4.9..., MonadCatchIO-transformers => base<4.7)
rejecting: MonadCatchIO-transformers-0.2.2.3,
MonadCatchIO-transformers-0.2.2.2, MonadCatchIO-transformers-0.2.2.1,
MonadCatchIO-transformers-0.2.2.0, MonadCatchIO-transformers-0.2.1.0,
MonadCatchIO-transformers-0.2.0.0, MonadCatchIO-transformers-0.1.0.1,
MonadCatchIO-transformers-0.1.0.0, MonadCatchIO-transformers-0.0.2.0,
MonadCatchIO-transformers-0.0.1.0 (conflict: hdocs =>
MonadCatchIO-transformers>=0.3.0)
Dependency tree exhaustively searched.