Crash when wrapping latitude and longitude in map - mapkit

Question

I get the current user map location and present it on a map with his location as the center of map.
It crash on the line
let currentLatitude = (locationManager.location?.coordinate.latitude)!
let currentLongitude = (locationManager.location?.coordinate.longitude)!
with the error "Could not inset legal attribution from corner 4"
I think its something related to the force wrap for latitude and longitude. What shall i do to fix this error??
Here is my code:
// Location Manager settings
locationManager.delegate = self
locationManager.desiredAccuracy = kCLLocationAccuracyBest
locationManager.requestWhenInUseAuthorization()
locationManager.startUpdatingLocation()
let currentLatitude = (locationManager.location?.coordinate.latitude)!
let currentLongitude = (locationManager.location?.coordinate.longitude)!
//Map settings
mapMyLocation.showsUserLocation = true
mapMyLocation.delegate = self
let locationcoordinates = CLLocationCoordinate2D(latitude: currentLatitude, longitude: currentLongitude)
let zoomSpan = MKCoordinateSpan(latitudeDelta: 0.5, longitudeDelta: 0.5)
let region = MKCoordinateRegion(center: locationcoordinates, span: zoomSpan)
mapMyLocation.setRegion(region, animated: true)

Answer 1

Try the following code
if let currentLatitude = locationManager.location?.coordinate.latitude,
let currentLongitude = locationManager.location?.coordinate.longitude {
//Map settings
mapMyLocation.showsUserLocation = true
mapMyLocation.delegate = self
let locationcoordinates = CLLocationCoordinate2D(latitude: currentLatitude, longitude: currentLongitude)
let zoomSpan = MKCoordinateSpan(latitudeDelta: 0.5, longitudeDelta: 0.5)
let region = MKCoordinateRegion(center: locationcoordinates, span: zoomSpan)
mapMyLocation.setRegion(region, animated: true)
}