I build a barn for my cow, then an invisible animal shed LOL

Oh no all, I ran into a little snag with the minimized barn. You can't clean it. The sim says they can't get to it. You can use testingcheats true and then shiftclick clean, but if you are a simmer that prefer to not use testingcheats then I am sorry this is not going to work. I will go back ingame and see if I can find a way around this little problem ;)