问Xcode控制台中的Firebase/InAppMessaging错误显示

EN

func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {

    window = UIWindow(frame: CGRect(x: 0, y: 0, width: kDeviceWidth, height: kDeviceHeight))
    
    FirebaseApp.configure()
    NotificationCenter.default.addObserver(self, selector: #selector(tokenRefreshNotification), name: NSNotification.Name.InstanceIDTokenRefresh, object: nil)
    Messaging.messaging().delegate = self
    Messaging.messaging().shouldEstablishDirectChannel = true

    UNUserNotificationCenter.current().delegate = self
    
    if #available(iOS 10.0, *) {
                   
        let authOptions: UNAuthorizationOptions = [.alert, .badge, .sound]
        UNUserNotificationCenter.current().requestAuthorization(
            options: authOptions,
            completionHandler: {_, _ in })
    } else {
        let settings: UIUserNotificationSettings =
            UIUserNotificationSettings(types: [.alert, .badge, .sound], categories: nil)
        application.registerUserNotificationSettings(settings)
    }
    
    application.registerForRemoteNotifications()
}
// [START refresh_token]
func messaging(_ messaging: Messaging, didReceiveRegistrationToken fcmToken: String) {
    
 //You save or send fcm token to your sever
}


//+++++++++++++++++++++++
// FCM Token Get Refreshed
@objc func tokenRefreshNotification(_ notification: Notification) {
    getFCMToken()
}
private func getFCMToken() {
    
    InstanceID.instanceID().instanceID { (result, error) in
        
        if error == nil {
            
            if let result = result {
                let fcmToken = result.token
                //Save or send to your server
            }
        }
    }
}