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SOLVED: Hacking with macOS, project5, type of expression is ambiguous without more context

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Hi,

I'm working on project5 and am getting the error "type of expression is ambiguous without more context" on the line "return annotationView" in the func mapView. Here's the full code:

func mapView(_ mapView: MKMapView, viewFor annotation: MKAnnotation) -> MKAnnotation? {
        guard let pin = annotation as? Pin else { return nil }
        let identifier = "Guess"
        var annotationView = mapView.dequeueReusableAnnotationView(withIdentifier: identifier) as? MKPinAnnotationView
        if annotationView == nil {
            annotationView = MKPinAnnotationView(annotation: annotation, reuseIdentifier: identifier)
        } else {
            annotationView!.annotation = annotation
        }
        annotationView?.canShowCallout = true
        annotationView?.pinTintColor = pin.color

        return annotationView   //type of expression is ambiguous without more context

    }

This is using Xcode 12.2

any ideas what's causing this error?

1      

Your return value from the method needs to be MKAnnotationView? instead of MKAnnotation?.

1      

thanks @roosterboy that did it!

1      

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