Ios mapView swift 导致警告有网格错误

您好，我正在创建一个简单的 map 与一个圆形覆盖，每次我运行它在SIM卡上，我得到下面的警告.如果能帮我摆脱它，我将不胜感激.我试着用一种方法添加圆形覆盖，但警告仍然没有消失.当我对欧洲的一个位置进行地理编码时，我也得到了另一个代码(下面是第二个代码).我在谷歌上找不到关于这两个人的任何信息.

(2/2)个地面平铺缺少地面网格层的网格可渲染对象.平铺调试信息:(关键字:0.1.2.255 t:34 kt:0，具有网格错误:0，网格实例计数:2，挂起material 计数:2，不可见网格实例计数:0|关键字:1.1.2.255 t:34 kt:0，具有网格错误:0，网格实例计数:2，挂起material 计数:2，不可见网格实例计数:0)

找不到密钥欧洲中盾的配置包

import SwiftUI
import MapKit

struct MapView: UIViewRepresentable {
   @State private var coordinate = CLLocationCoordinate2DMake(45.5202471, -122.6741949)
   let city: String
   let state: String
   let country: String
   let is100: Bool

   func makeUIView(context: Context) -> MKMapView {
       let mapView = MKMapView()
       mapView.delegate = context.coordinator

       let geocoder = CLGeocoder()
       var address = "\(city), \(state), \(country)"
       if state.isEmpty {
           address = "\(city), \(country)"
       }
       geocoder.geocodeAddressString(address) { placemarks, error in
           if let placemark = placemarks?.first, let location = placemark.location {
               self.coordinate = location.coordinate
               mapView.setCenter(self.coordinate, animated: true)
               
               let region = MKCoordinateRegion(center: coordinate, latitudinalMeters: is100 ? 20000 : 10000, longitudinalMeters: is100 ? 20000 : 10000)
               mapView.setRegion(region, animated: true)

               let regionRadius = is100 ? 10000.0 : 3500.0
               let circle = MKCircle(center: coordinate, radius: regionRadius)
               mapView.addOverlay(circle)
           }
       }
       return mapView
   }

   func updateUIView(_ uiView: MKMapView, context: Context) {}

   func makeCoordinator() -> Coordinator {
       Coordinator()
   }

   class Coordinator: NSObject, MKMapViewDelegate {
       func mapView(_ mapView: MKMapView, rendererFor overlay: MKOverlay) -> MKOverlayRenderer {
           if let circle = overlay as? MKCircle {
               let circleRenderer = MKCircleRenderer(circle: circle)
               circleRenderer.strokeColor = UIColor.black
               circleRenderer.fillColor = UIColor.green.withAlphaComponent(0.5)
               circleRenderer.lineWidth = 1.0
               return circleRenderer
           }
           return MKOverlayRenderer(overlay: overlay)
       }
   }
}