Nearables example that doesn't work

NearablesViewController.cs

public override void ViewDidLoad()
{
    base.ViewDidLoad();

    var beaconManager = new BeaconManager();

    beaconManager.AuthorizationStatusChanged += (s, e) =>
    {
        var manager = new NearableManager();

        manager.RangedNearables += (sender, e1) =>
        {
            if (e1.Nearables.Any(n => n.Type != NearableType.Unknown))
            {
                // this is never shown as the Type is never set to anything other than Unknwon
                new UIAlertView("Nearables Found", "Just found: " + e1.Nearables.Length + " nearables.", null, "OK").Show();
            }
        };

        // using StartRangingForIdentifier means the RangedNearables event fires with an empty Nearables collection
        //manager.StartRangingForIdentifier("a14f2bd4fdb99a3d");

        // using StartRangingForType with a specified type means the RangedNearables event fires with an empty Nearables collection
        //manager.StartRangingForType(NearableType.Fridge);

        // using StartRangingForType with a type of all means the RangedNearables event fires with all the nearables in it's collection
        // but the type field on the nearables is Unknown
        manager.StartRangingForType(NearableType.All);
    };
    
    beaconManager.RequestAlwaysAuthorization();
}