Thread 1: EXC_BREAKPOINT (code=1, subcode=...) When using MKMap View - ios

Question

So I recently encountered a problem with my MKMapView. Whenever I click a button to go to the view with the map in it I get the above error centered around this line.
Updated with full script. error is let region = MKCoordinateRegion.init(center: (userLocation.location?.coordinate)!, latitudinalMeters: 5000, longitudinalMeters: 5000)
mapView.setRegion(region, animated: true) }
#IBOutlet weak var mapView: MKMapView!
#IBAction func mapTypeChanged(_ sender: Any) {
switch ((sender as AnyObject).selectedSegmentIndex) {
case 0:
mapView.mapType = .standard
case 1:
mapView.mapType = .hybridFlyover
default:
mapView.mapType = .standard
}
}
#IBAction func zoomIn(_ sender: Any) {
let userLocation = mapView.userLocation
let region = MKCoordinateRegion.init(center: (userLocation.location?.coordinate)!, latitudinalMeters: 5000, longitudinalMeters: 5000)
self.mapView.setRegion(region, animated: true)
}
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view.
mapView.showsUserLocation = true
mapView.delegate = self
let userLocation = mapView.userLocation
let region = MKCoordinateRegion.init(center: (userLocation.location?.coordinate)!, latitudinalMeters: 5000, longitudinalMeters: 5000)
mapView.setRegion(region, animated: true)
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
/*
// MARK: - Navigation
// In a storyboard-based application, you will often want to do a little preparation before navigation
override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
// Get the new view controller using segue.destinationViewController.
// Pass the selected object to the new view controller.
}
*/
}
There was a formatting problem.
I have no clue why this is as it wasnt happening before. Could anybody help out? Any help will be greatly appreciated

Answer 1

You can try this
if let coor = userLocation.location?.coordinate {
let region = MKCoordinateRegion(center:coor, latitudinalMeters: 5000, longitudinalMeters: 5000)
}
it will work if there is a current value for coor , maybe you click it before getting a location so request for location updates again in else , or initially inside viewDidLoad
//
Use this method
var once = true
//
func mapView(_ mapView: MKMapView,
didUpdate userLocation: MKUserLocation) {
if once {
let region = MKCoordinateRegion.init(center: userLocation.location!.coordinate, latitudinalMeters: 5000, longitudinalMeters: 5000)
mapView.setRegion(region, animated: true)
once = false
}
}
of the delegateMKMapViewDelegate to get the correct value