Resolving dependencies... cabal: Could not resolve dependencies: next goal: manatee-processmanager (user goal) rejecting: manatee-processmanager-0.1.1, manatee-processmanager-0.1.0, manatee-processmanager-0.0.8, manatee-processmanager-0.0.7, manatee-processmanager-0.0.6, manatee-processmanager-0.0.5 (constraint from user target requires ==0.0.4) trying: manatee-processmanager-0.0.4 trying: base-4.9.0.0/installed-4.9... (dependency of manatee-processmanager-0.0.4) next goal: proc (dependency of manatee-processmanager-0.0.4) rejecting: proc-0.0.9, proc-0.0.8 (conflict: base==4.9.0.0/installed-4.9..., proc => base>=4 && <4.8) rejecting: proc-0.0.7, proc-0.0.6, proc-0.0.5, proc-0.0.4, proc-0.0.3, proc-0.0.2, proc-0.0.1 (conflict: manatee-processmanager => proc>=0.0.8) Dependency tree exhaustively searched.