Resolving dependencies... cabal: Could not resolve dependencies: trying: apiary-authenticate-1.5.0 (user goal) trying: base-4.9.1.0/installed-4.9... (dependency of apiary-authenticate-1.5.0) next goal: apiary-session (dependency of apiary-authenticate-1.5.0) rejecting: apiary-session-1.4.0 (conflict: base==4.9.1.0/installed-4.9..., apiary-session => base>=4.6 && <4.9) rejecting: apiary-session-1.3.0, apiary-session-1.2.0 (conflict: apiary-authenticate => apiary-session>=1.4 && <1.6) Dependency tree exhaustively searched.