SKMaps crashes when add SKViaPoint
问题 I'm using SKMaps to simulate custom routes. It was working fine with navigating a point to another point, I mean use start and destination only: route.startCoordinate = CLLocationCoordinate2DMake(37.9667, 23.7167) route.destinationCoordinate = CLLocationCoordinate2DMake(37.9677, 23.7567) but if I add viaPoints to route, app will crash when I startNavigation: route.startCoordinate = CLLocationCoordinate2DMake(37.9667, 23.7167) route.viaPoints = [SKViaPoint(1, withCoordinate