It's a little hard to say, as it is slightly old-fashioned. I think that the meaning of 'resolve' here is something between 'decide firmly on a course of action' and 'make a decision by a formal vote.' Without the context of what the meeting was, it could be either. If it was a meeting of a body with formal powers, it could be the latter. If it was just a group of people that were agreeing on a policy, then it would be the first.