Using iBeacon and CoreLocation I'm receiving the following error:

Error Domain=kCLErrorDomain Code=16 "The operation couldn’t be completed. (kCLErrorDomain error 16.)

Unless I'm missing it, there doesn't seem to be a clear reference on Apple for what each of the error code means.

Can anyone interpret this error code?

The error calls from:

```
- (void)locationManager:(CLLocationManager *)manager rangingBeaconsDidFailForRegion:    (CLBeaconRegion *)region withError:(NSError *)error{
NSLog(@"%@", error);
}

- (void)locationManager:(CLLocationManager *)manager monitoringDidFailForRegion:(CLRegion *)region withError:(NSError *)error{
NSLog(@"%@", error); }

```