在Swift数组中添加新位置

我试图将位置添加到数组中,这样我就可以计算累积距离,但我一直在思考如何将这些位置添加到我自己的数组中,它只是一直返回相同的位置。它很好地计算了距离(我用硬编码的位置进行了测试),我想我在打电话 startUpdatingLocations 由于不确定问题所在,我尝试了各种方法试图添加到数组中,但现在我得到了 No exact matches in call to instance method 'append' :

class RaceViewController: UIViewController, CLLocationManagerDelegate {

var locations : [CLLocation] = []
var locationManager: CLLocationManager!

override func viewDidLoad() {
    super.viewDidLoad()
    if (CLLocationManager.locationServicesEnabled())
           {
               locationManager = CLLocationManager()
               locationManager.delegate = self
               locationManager.desiredAccuracy = kCLLocationAccuracyBest
               locationManager.requestAlwaysAuthorization()
           }
       }

@IBAction func trackPressed(_ sender: UIButton) {
    
    locationManager.startUpdatingLocation()
    print(totalDistance(of: locations))
    print(locations)
    print(locationManager.location)
}

//get total distance between locations
func totalDistance(of locations: [CLLocation]) -> CLLocationDistance {
    var distance: CLLocationDistance = 0.0
    var previousLocation: CLLocation?
    
//trying here to add the location to the array of locations as and when it updates
    locations.append(contentsOf: locationManager.location)
    
    locations.forEach { location in
        if let previousLocation = previousLocation {
            distance += location.distance(from: previousLocation)
        }
        previousLocation = location
    }
    
    return distance
}

}