APP inventer 出现Runtime Error No virtual method isDeniedPermission(Ljava/lang/String;)

MIT App Inventor Help
1

what should I do to fix this situation?

ERROR2
ERROR21361×557 43.5 KB

ERROR3
ERROR31115×2088 162 KB

ERROR1
ERROR11232×562 79.4 KB

2

Don't use multiple screens with Bluetooth?