Resolving dependencies...
cabal: Could not resolve dependencies:
trying: snaplet-mongoDB-0.2 (user goal)
trying: base-4.9.0.0/installed-4.9... (dependency of snaplet-mongoDB-0.2)
next goal: MonadCatchIO-transformers (dependency of snaplet-mongoDB-0.2)
rejecting: MonadCatchIO-transformers-0.3.1.3,
MonadCatchIO-transformers-0.3.1.2, MonadCatchIO-transformers-0.3.1.1,
MonadCatchIO-transformers-0.3.1.0, MonadCatchIO-transformers-0.3.0.0,
MonadCatchIO-transformers-0.2.2.3 (conflict: snaplet-mongoDB =>
MonadCatchIO-transformers==0.2.2.2)
rejecting: MonadCatchIO-transformers-0.2.2.2 (conflict:
base==4.9.0.0/installed-4.9..., MonadCatchIO-transformers => base<4.7)
rejecting: 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: snaplet-mongoDB =>
MonadCatchIO-transformers==0.2.2.2)
Dependency tree exhaustively searched.