Error witth configure app, indoor location

Indoor Location
1 
import UIKit
class ViewController: UIViewController, EILIndoorLocationManagerDelegate {
    @IBOutlet weak var myLocationView: EILIndoorLocationView!
    var locationManager = EILIndoorLocationManager()
    var location: EILLocation!
    override func viewDidLoad() {
        super.viewDidLoad()
        self.locationManager.delegate = self
        let locationBuilder = EILLocationBuilder()
        locationBuilder.setLocationName("office")
        locationBuilder.setLocationBoundaryPoints([
            EILPoint(x: 0.00, y: 0.00),
            EILPoint(x: 0.00, y: 4.00),
            EILPoint(x: 4.48, y: 4.00),
            EILPoint(x: 4.48, y: 0.00)])
        locationBuilder.addBeacon(withIdentifier: "395b8767bd63efc0fff23894fa05cb0b",
                                  atBoundarySegmentIndex: 0, inDistance: 4.46, from: .leftSide)
        locationBuilder.addBeacon(withIdentifier: "4bb0675d47649d4273a9bb963ea9dd13",
                                  atBoundarySegmentIndex: 1, inDistance: 0.38, from: .rightSide)
        locationBuilder.addBeacon(withIdentifier: "739cd8034732d5349f15c33c625c9f05",
                                  atBoundarySegmentIndex: 2, inDistance: 4.46, from: .leftSide)
        locationBuilder.addBeacon(withIdentifier: "a823daa6f67076543143752b57514507",
                                  atBoundarySegmentIndex: 3, inDistance: 0.43, from: .rightSide)
        locationBuilder.setLocationOrientation(270)
        guard let location = locationBuilder.build()else {
            print ("Error whe building location")
            return
        }
        ESTConfig.setupAppID("<configuration-3rj>", andAppToken: "<668f7c994b82b07e902ccf4a3d7d88ba")
        let addLocationRequest = EILRequestAddLocation(location: location)
        addLocationRequest.sendRequest { (location, error) in
           if error != nil {
               NSLog("Error when saving location")
        } else {
                NSLog("Location saved successfully")
           }
      }
    }
    override func viewWillAppear(_ animated: Bool){
        myLocationView.backgroundColor = UIColor.clear
        myLocationView.showTrace = true
        myLocationView.showWallLengthLabels = true
        myLocationView.rotateOnPositionUpdate = false
        myLocationView.locationBorderColor = UIColor.black
        myLocationView.locationBorderThickness = 6
        myLocationView.doorColor = UIColor.brown
        myLocationView.doorThickness = 5
        myLocationView.traceColor = UIColor.yellow
        myLocationView.traceThickness = 2
        myLocationView.wallLengthLabelsColor = UIColor.black
        myLocationView.drawLocation(location)
        locationManager.state(for: location)
    }
    override func viewWillDisappear(_ animated: Bool){
        super.viewWillDisappear(animated)
        locationManager.stop()
    }
    func indoorLocationManager(_ manager: EILIndoorLocationManager, didFailToUpdatePositionWithError error: NSError!){
        NSLog("Did fail to update location")
    }
}
//  i repaired error: nstance method 'indoorLocationManager(_:didFailToUpdatePositionWithError:)' nearly matches optional requirement 'indoorLocationManager(_:didFailToUpdatePositionWithError:)' of protocol 'EILIndoorLocationManagerDelegate'
Candidate has non-matching type '(EILIndoorLocationManager, NSError?) -> ()'//
func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
        // Override point for customization after application launch.
        return true
    }
```

It's my code. I made view panel. But i have error, and my app doesn't work. I don't know what's wrong... I have no connection beetwen myLocationView and my View? What should i do?

**configuration[2440:65842] [CoreBluetooth] XPC connection invalid**

application UIApplication 0x00007fe68f503af0
UIKit.UIResponder UIResponder 
baseNSObject@0 NSObject 
launchOptions [UIApplication.LaunchOptionsKey : Any]? nil none
self configuration.AppDelegate 0x0000600000ba3100
UIKit.UIResponder UIResponder 
window UIWindow? 0x00007fe68f4136d0