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POUsing Core Data and in insertMethod App crashes and give NSInternalInconsistencyException with error message Context already has a coordinator
 

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  1. POUsing Core Data and in insertMethod App crashes and give NSInternalInconsistencyException with error message Context already has a coordinator
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    <p>i am implementing a core data example in xcode 4.2 at insertMethod (in MasterViewController.m class) my app crashes with a <strong>NSInternalInconsistencyException and error message: Context already has a coordinator; cannot replace.</strong> can any buddy tell me the meaning of this exception and error message</p> <p>insert method given below:-</p> <pre><code> (void)insertNewObject { detailViewControllerObj = [[DetailViewController alloc]initWithNibName:@"DetailViewController" bundle:nil]; detailViewControllerObj.delegate = self; NSManagedObjectContext *addingContext = [[NSManagedObjectContext alloc] init]; self.managedObjectContext = addingContext; [managedObjectContext setPersistentStoreCoordinator:[[fetchedResultsController managedObjectContext] persistentStoreCoordinator]]; detailViewControllerObj.cust = (Customer *) [NSEntityDescription insertNewObjectForEntityForName:@"Customer" inManagedObjectContext:addingContext]; UINavigationController *navController = [[UINavigationController alloc] initWithRootViewController:detailViewControllerObj]; [self.navigationController presentModalViewController:navController animated:YES]; </code></pre> <p>}</p> <p><strong>and the app crashes after exectution of</strong> </p> <pre><code>[managedObjectContext setPersistentStoreCoordinator:[[fetchedResultsController managedObjectContext] persistentStoreCoordinator]]; </code></pre> <p>Any help will be more appreciable..</p>
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