Resolving dependencies... cabal: Could not resolve dependencies: next goal: hmemdb (user goal) rejecting: hmemdb-0.4.0.0, 0.3.1.2, 0.3.1.1, 0.3.1.0, 0.3.0.1, 0.3.0.0, 0.2.0.4, 0.2.0.3, 0.2.0.2, 0.2.0.1, 0.2.0.0 (global constraint requires ==0.1.0.5) trying: hmemdb-0.1.0.5 next goal: base (dependency of hmemdb-0.1.0.5) rejecting: base-4.7.0.1/installed-e4b... (conflict: hmemdb => base==4.6.*) rejecting: base-4.8.0.0, 4.7.0.2, 4.7.0.1, 4.7.0.0, 4.6.0.1, 4.6.0.0, 4.5.1.0, 4.5.0.0, 4.4.1.0, 4.4.0.0, 4.3.1.0, 4.3.0.0, 4.2.0.2, 4.2.0.1, 4.2.0.0, 4.1.0.0, 4.0.0.0, 3.0.3.2, 3.0.3.1 (global constraint requires installed instance) Dependency tree exhaustively searched.