Resolving dependencies... cabal: Could not resolve dependencies: next goal: iptadmin (user goal) rejecting: iptadmin-1.3.4, iptadmin-1.3.3, iptadmin-1.3.2, iptadmin-1.3.1, iptadmin-1.3.0, iptadmin-1.2.1, iptadmin-1.2.0, iptadmin-1.1.0, iptadmin-1.0.1 (constraint from user target requires ==1.0.0) trying: iptadmin-1.0.0 trying: containers-0.5.7.1/installed-0.5... (dependency of iptadmin-1.0.0) next goal: iptables-helpers (dependency of iptadmin-1.0.0) rejecting: iptables-helpers-0.5.0, iptables-helpers-0.4.2, iptables-helpers-0.4.1, iptables-helpers-0.4 (conflict: iptadmin => iptables-helpers>=0.3 && <0.4) rejecting: iptables-helpers-0.3 (conflict: containers==0.5.7.1/installed-0.5..., iptables-helpers => containers>=0.3 && <0.4) Backjump limit reached (currently 2000, change with --max-backjumps or try to run with --reorder-goals).