animal crossing ds onto animal crossing wii

hi, wondered if anyone can help, i have animal crossing running on my R4 and can move my player DS TO DS, Bought my daughters Animal Crossing Let`s go to City for christmas and tried to put our characters onto the wii game but couldn`t do it, anyone know if there is a way, our wii console is not modded, but all of our DS` have R4 cards in them, thanks

Try updating your firmware if you haven't.