Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

iOS

Posted by Fred Lawrence
Fred Lawrence
3,833 Points

Use of unresolved indentifier - MapKit, user location

I'm trying to get the user location to appear in the user interface, but the use of unresolved identifier keeps appearing... Any heads up on how to fix this, please? Muy danke! p.s The error occurs on the line of let region:MKCoordinateRegion = MKCoordinateRegionMake(myLocation, span).

import UIKit import MapKit import CoreLocation

class SecondViewController: UIViewController, CLLocationManagerDelegate {

//Map
@IBOutlet weak var map: MKMapView!

let manager = CLLocationManager()

func locationManager(_ manager: CLLocationManager, didUpdateLocations locations: [CLLocation])
{   let location = locations[0]

    let span:MKCoordinateSpan = MKCoordinateSpanMake(0.01, 0.01)

    let myLocation:CLLocationCoordinate2D = CLLocationCoordinate2DMake(location.coordinate.latitude, location.coordinate.longitude)

    let region:MKCoordinateRegion = MKCoordinateRegionMake(myLocation, span)



    self.map.showsUserLocation = true

}

override func viewDidLoad()
{
    super.viewDidLoad()
    manager.delegate = self
    manager.desiredAccuracy = kCLLocationAccuracyBest
    manager.requestWhenInUseAuthorization()
    manager.startUpdatingLocation()

     map.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.
}
*/

}