Resolving dependencies... cabal: Could not resolve dependencies: next goal: persistent-mongoDB (user goal) rejecting: persistent-mongoDB-2.5.0.1, persistent-mongoDB-2.5, persistent-mongoDB-2.1.4, persistent-mongoDB-2.1.2.2, persistent-mongoDB-2.1.2.1, persistent-mongoDB-2.1.2, persistent-mongoDB-2.1.1, persistent-mongoDB-2.1, persistent-mongoDB-1.4.4.4, persistent-mongoDB-1.4.4.3, persistent-mongoDB-1.4.3, persistent-mongoDB-1.4.2.1, persistent-mongoDB-1.4.2, persistent-mongoDB-1.4.1.1, persistent-mongoDB-1.4.1, persistent-mongoDB-1.3.3.1, persistent-mongoDB-1.3.3, persistent-mongoDB-1.3.2, persistent-mongoDB-1.3.1.1, persistent-mongoDB-1.3.0.4, persistent-mongoDB-1.3.0.3, persistent-mongoDB-1.3.0.2, persistent-mongoDB-1.3.0.1, persistent-mongoDB-1.2.3, persistent-mongoDB-1.2.2, persistent-mongoDB-1.2.1.2, persistent-mongoDB-1.2.1.1, persistent-mongoDB-1.2.1, persistent-mongoDB-1.2.0.1, persistent-mongoDB-1.2.0, persistent-mongoDB-1.1.6, persistent-mongoDB-1.1.5.2, persistent-mongoDB-1.1.5.1, persistent-mongoDB-1.1.5, persistent-mongoDB-1.1.4, persistent-mongoDB-1.1.3, persistent-mongoDB-1.1.2, persistent-mongoDB-1.1.0, persistent-mongoDB-1.0.1.0 (constraint from user target requires ==1.0.0.1) trying: persistent-mongoDB-1.0.0.1 trying: lifted-base-0.2.3.8 (dependency of mongoDB-1.3.2) next goal: resourcet (dependency of persistent-mongoDB-1.0.0.1) rejecting: resourcet-1.1.9, resourcet-1.1.8.1, resourcet-1.1.8, resourcet-1.1.7.5, resourcet-1.1.7.4, resourcet-1.1.7.3, resourcet-1.1.7.2, resourcet-1.1.7.1, resourcet-1.1.7, resourcet-1.1.6, resourcet-1.1.5, resourcet-1.1.4.1, resourcet-1.1.4, resourcet-1.1.3.3, resourcet-1.1.3.2, resourcet-1.1.3.1, resourcet-1.1.3, resourcet-1.1.2.3, resourcet-1.1.2.2, resourcet-1.1.2.1, resourcet-1.1.2, resourcet-1.1.1, resourcet-1.1.0.1, resourcet-1.1.0, resourcet-0.4.10.2, resourcet-0.4.10.1, resourcet-0.4.10, resourcet-0.4.9, resourcet-0.4.8, resourcet-0.4.7.2, resourcet-0.4.7.1, resourcet-0.4.7, resourcet-0.4.6, resourcet-0.4.5, resourcet-0.4.4, resourcet-0.4.3, resourcet-0.4.2, resourcet-0.4.1, resourcet-0.4.0.2, resourcet-0.4.0.1, resourcet-0.4.0 (conflict: persistent-mongoDB => resourcet>=0.3 && <0.4) rejecting: resourcet-0.3.3.1, resourcet-0.3.3, resourcet-0.3.2.2, resourcet-0.3.2.1, resourcet-0.3.2, resourcet-0.3.1, resourcet-0.3.0 (conflict: lifted-base==0.2.3.8, resourcet => lifted-base>=0.1 && <0.2) Dependency tree exhaustively searched.