Invalid Transition error is issued in the following situations:
(Reverse Transition) is not a valid transition for <Screen>. This transition is only applicable to (Previous Screen) destinations.
You have a Destination node with the property Transition set to
(Reverse Transition), but this transition can only be used if the property Destination is
Change the property Destination to
(Previous Screen)or choose another transition.
Double-click on the error line to take you directly to the source of the error.