Core Data _NSFaultingMutableSet Exception
Core Data _NSFaultingMutableSet Exception
- Subject: Core Data _NSFaultingMutableSet Exception
- From: "Gerriet M. Denkmann" <email@hidden>
- Date: Tue, 22 Dec 2009 12:05:38 +0700
Core Data model with two entities: A and B.
A has property aValue and a relation theBs to one or more Bs.
B has a property bValue.
Two NSTableViews (tabelView1 and tableView2 ) with each controlled by an NSArrayController (arrayController1 and arrayController2).
Everything works fine when I send:
[ arrayController1 setFilterPredicate: "aValue BEGINSWITH[n] "a""];
[ arrayController2 setFilterPredicate: "aValue containsInside: "a""];
(Well, I do send real predicates, but they contain the strings shown above. "containsInside:" is declared in a category on NSString)
But when I use:
[ arrayController1 setFilterPredicate: "aValue BEGINSWITH[n] "a" AND ANY theBs.bValue == "xx""];
I get an exeption:
HIToolbox: ignoring exception '[<_NSFaultingMutableSet 0x1001f5d00> addObserver:forKeyPath:options:context:] is not supported. Key path: bValue' that raised inside Carbon event dispatch
When later I reset the filterPredicates back to the simple (working) mode, I get another exception:
HIToolbox: ignoring exception 'Cannot remove an observer <arrayController1> for the key path "theBs.bValue" from <A-entity 0x114f02a10> because it is not registered as an observer.' that raised inside Carbon event dispatch
1. This is a Cocoa document based app, using Core Data. Why this "Carbon event dispatch". And who is HIToolbox?
2. I have an identical app, which works perfectly.
(Obviously these two apps are NOT identical, but I really cannot find any differences. I tried to remove all changes I made to the newer app, but the exception remains).
I spend now more than a day chasing this exception. Any hints would be most welcome. 10.6.2.
Kind regards,
Gerriet.
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