Common error and solution during running and building connections between EOSIO components:
Error 3050000: Action validate exception
Error Details:
inline action’s authorizing actor eosio.ram does not exist
Solution: Make sure the eosio.ram was created before setting any contracts(eosio.system, eosio.msig). It should also be created before initializing system accounts. Otherwise this error will show up when creating block producer or voter.