Keep getting "Put taming food in last slot" when I try to passive tame in Dev Kit

I have tried spawning an original LanternBird and my copy.of it and keep getting the same result, I can not passively tame them in the Dev Kit. I have used the spawn from the menu, spawnacter, and GMSummon and get the same result of being told to put the taming food in my last slot. I have put every taming food that is in the DinsSetting file with no positive results. Any ideas, am I doing something wrong? I appropriate any help