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This is my error:
Terminating app due to uncaught exception 'NSInvalidArgumentException',
reason: '-[__NSArrayI addObject:]: unrecognized selector sent to instance
I have no idea why this is happening. Both the array (which is NSMutableArray) and the object being added are definitely not nil, and the @property for the array is straight up (nonatomic, retain).
Can anyone help?
Chances are the array is not a NSMutableArray – a NSArray is not mutable, that is, you cannot add objects to it.
I know you said it is – but if you do
you get a NSArray, not a NSMutableArray. I’ve done it.