Resolving dependencies... cabal: Could not resolve dependencies: trying: polydata-0.3.0.0 (user goal) trying: constraint-manip-0.1.0.0 (dependency of polydata-0.3.0.0) next goal: indextype (dependency of polydata-0.3.0.0) rejecting: indextype-0.3.0.0 (conflict: constraint-manip => indextype==0.2.*) rejecting: indextype-0.2.3.0, indextype-0.2.2.0, indextype-0.2.0.0, indextype-0.1.0.0, indextype-0.2.1.0 (conflict: polydata => indextype==0.3.*) Dependency tree exhaustively searched.