Core Data error on ManagedObjectContext Save - objective-c

Question

Oof... having an issue here..
I'm using CoreData and the root view of my navigation controller gives a list of staff.
If I click a staff member, I push the detail view of that staff member.
If I click on one of the detail fields (i.e. 'Name' or 'Location') I push an editing view controller where I can change the data and then save.
I have two different edit controllers... one for simple text edits ("EditTextController") and one for Location ("EditLocationController") which is a relationship field where you can select the location from a list.
If I create a new staff member, everything works perfectly. I'm even able to update any of the text fields or location field without error.
The problem comes when I try to UPDATE an existing staff member. I'm able to change their Location no problem... no errors. But if I try and update the textfield of an existing staff member I get a nasty error.
-[StaffListMasterViewController configureCell:atIndexPath:]: unrecognized selector sent to instance 0x6d7e650
2012-02-21 14:32:14.663 FanOut[2664:fb03] CoreData: error: Serious application error.
Exception was caught during Core Data change processing. This is usually a bug within an
observer of NSManagedObjectContextObjectsDidChangeNotification. -
[StaffListMasterViewController configureCell:atIndexPath:]: unrecognized selector sent to
instance 0x6d7e650 with userInfo (null)
2012-02-21 14:32:14.665 FanOut[2664:fb03] *** Terminating app due to uncaught exception
'NSInvalidArgumentException', reason: '-[StaffListMasterViewController configureCell:atIndexPath:]: unrecognized selector sent to instance 0x6d7e650'
It's confusing because the code in the two controllers seems to be identical
- (void) saveButtonPressed:(id) sender {
[managedObject setValue:textField.text forKey:keyString];
//Save the context
NSError *error = nil;
if (![self.managedObjectContext save:&error]) {
NSLog(#"Unresolved error %#, %#", error, [error userInfo]);
abort();
} else {
[self.navigationController popViewControllerAnimated:YES];
}
}
I don't know.. I'm certain I probably have not provided enough information to figure this out. But maybe if anyone has suggestions on what else I need to include for troubleshooting? Thanks in advance...

Answer 1

Show the code for this method: -[StaffListMasterViewController configureCell:atIndexPath:]. Update your question with this information, so you can get the benefit of text formatting.