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Core Data error when assigning variable with one-to-one relationship

Answer 1

+1 A:

What is the text of the error? While the stack trace is helpful, the text that is before it is often far more useful.

What does the relationship look like between objectC and objectB? Is it one to one both ways? Is there a proper inverted relationship?

Marcus S. Zarra 2010-05-18 16:53:57

Hi Marcus, I added the log generated when I added NSZombieEnabled and StackLoggingEnabled, the relationship between objectC and objectB is the one-to-one both ways with inverted relationship. I have double checked all the inverted relationships in all of the objects.

sfa 2010-05-18 17:07:54

ohh, I found the error, Marcus. Thanks for your suggestion, I look back where I save the set of objects A for object B as you can see in the answer.

sfa 2010-05-18 17:25:58

Answer 2

A:

Ohh, right now, I have the answer, based on the suggestion of Marcus, I looked back where I save the set of object A for object B and found that I over-released the objectA.

[objectA setValue:objectB forKey:@"objectB"];

NSError *error;
if (![managedObjectContext save:&error]){
    NSLog(@"unresolved error when saving manageObjectContext", nil);
}
[objectA release];

This message:

*** -[CFSet retain]: message sent to deallocated instance 0x800c880

is the signal of retaining a set of objects failed.

Uncommenting the [objectA release] solved the error. :-s Got headaches for half a day :(

sfa 2010-05-18 17:26:37

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