Question

In viewDidLoad, I have:

NSArray *selectedPeople = [[selectedObject people] allObjects];
NSArray *peeps = [[NSArray alloc] initWithArray:selectedPeople];

This works just fine, but when I use an NSArray that was declared in my properties it doesn’t:

NSArray *selectedPeople = [[selectedObject people] allObjects];
people = [[NSArray alloc] initWithArray:selectedPeople];

The program crashes and says that:

[People isEqualToString:]: unrecognized selector sent to instance 0x6031910

I’m using CoreData and selectedPeople holds People objects. I’m not sure what I’m missing here.

Answer 1

I’m pretty sure Core Data setters for a collection of objects take a set and not an array.

You could try the following:

self.people = [[NSSet setWithArray:selectedPeople];