I make use of NSFetchedResultsController to display a bunch of objects, which are sectioned using dates. On a fresh install, it all works perfectly and the objects are displ
If you're using the simulator, try resetting it--I'd guess you've changed your entity map and it's getting confused by a leftover cache. If not, you could try doing what the error says:
- (void)applicationWillTerminate:(UIApplication *)application {
[NSFetchedResultsController deleteCacheNamed:@"Events"];
//etc
}