NSPredicate to filter beacon according to UUID, major and minor raising exception - nspredicate

Question

I have a beacons array having a collection of CLBeacon and I would like to get only the beacon which matches a given uuid, major and minor in NSPredicate. Below is the code in Object C which is generating an exception because of UUID in the predicate. The code works fine if I remove the uuidPredicate from the query.
- (void)locationManager:(CLLocationManager *)manager didRangeBeacons:(NSArray<CLBeacon *> *)beacons inRegion:(CLBeaconRegion *)region{
NSPredicate *uuidPredicate = [NSPredicate predicateWithFormat:#"uuid.UUIDString == [c] %#", #"03672ce6-9272-48ea-ba54-0bf679217980"];
//NSPredicate *uuidPredicate = [NSPredicate predicateWithFormat:#"uuid == %#", #"03672ce6-9272-48ea-ba54-0bf679217980"];
NSPredicate *majorPredicate = [NSPredicate predicateWithFormat:#"major = %ld", 1];
NSPredicate *minorPredicate = [NSPredicate predicateWithFormat:#"minor = %ld", 3];
NSPredicate *compoundPredicate = [NSCompoundPredicate andPredicateWithSubpredicates:#[uuidPredicate, majorPredicate, minorPredicate]];
NSArray *pointABeacon = [beacons filteredArrayUsingPredicate:compoundPredicate];
}
The beacons array is something like
beacons (
"CLBeacon (uuid:03672CE6-9272-48EA-BA54-0BF679217980, major:1, minor:1, proximity:1 +/- 0.07m, rssi:-61)",
"CLBeacon (uuid:03672CE6-9272-48EA-BA54-0BF679217980, major:1, minor:2, proximity:1 +/- 0.07m, rssi:-62)",
"CLBeacon (uuid:03672CE6-9272-48EA-BA54-0BF679217981, major:1, minor:3, proximity:2 +/- 1.64m, rssi:-53)"
)
The exception is
*** Terminating app due to uncaught exception 'NSUnknownKeyException', reason: '[< CLBeacon 0x1c401c410 > valueForUndefinedKey:]: this class is
not key value coding-compliant for the key uuid.'
How to filter the array with three parameters uuid, major and minor?

Answer 1

The error is clear:
A CLBeacon object doesn't have a property named uuid.
When you print a CLBeacon object, you might see "uuid", but that's not the real name of the property, it's proximityUUID
So:
NSPredicate *uuidPredicate = [NSPredicate predicateWithFormat:#"uuid.UUIDString == [c] %#", #"03672ce6-9272-48ea-ba54-0bf679217980"];
should be:
NSPredicate *uuidPredicate = [NSPredicate predicateWithFormat:#"proximityUUID.UUIDString == [c] %#", #"03672ce6-9272-48ea-ba54-0bf679217980"];