Resolving dependencies... cabal: Could not resolve dependencies: trying: distributed-process-azure-0.1.0 (user goal) trying: base-4.8.1.0/installed-4f7... (dependency of distributed-process-azure-0.1.0) next goal: rank1dynamic (dependency of distributed-process-azure-0.1.0) rejecting: rank1dynamic-0.3.1.0, 0.2.0.1, 0.2.0.0 (conflict: distributed-process-azure => rank1dynamic>=0.1 && <0.2) rejecting: rank1dynamic-0.1.0.2, 0.1.0.1 (conflict: base==4.8.1.0/installed-4f7..., rank1dynamic => base>=4.4 && <4.7) rejecting: rank1dynamic-0.1.0.0 (conflict: base==4.8.1.0/installed-4f7..., rank1dynamic => base==4.5.*) Dependency tree exhaustively searched.