Okay so I don't know what's going on. I made a Sim and his Brother. One Sim had 2 kids and a wife, and now their relationships are all screwed up. I can't make my Sim the uncle to the children, only B...
Sorry to bring up an old thread, but is there a fix or cheat for this yet? I'm trying to get Johnny Zest related to his family, and the "cannot edit preexisting sims" message is there.