I’m working on new topic form that will require users to choose a forum. As it is now, if a forum is not chosen and the topic submitted, the new topic page is simply returned with no error message, and no published topic. Is there a way to generate an error message and therefore mandate users to choose a forum?

[@esmaeili Participant 4 years, 8 months ago]

5.5 years later and Having the same request from client.
anyone could help?