*** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[MKUserLocation annotationType]: unrecognized selector

Question

i am receiving this error when trying to add user location. I have a table view and when i try to scroll, i receive this error. I'm very new to xcode.

* Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[MKUserLocation annotationType]: unrecognized selector sent to instance 0x803f090'

Any help is much appreciated.

Answer 1

MKUserLocation does not have an annotationType method. You're sending MKUserLocation a message that it does not know how to handle.

Answer 2

I am encountered this before, it is normally because of simple & not obvious type of mistake ie format wrong - didn't call a function based on the unexpected format, type wrong.

I used:

[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(ABC:) ....name:@"UIDeviceBatteryLevelDidChangeNotification" object:nil];

The "ABC" function, I declared not based on the expected function format.

Instead of:

- (void) ABC:(NSNotification *)notification 

I used:

- (NSString *)DDD