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copied!<p>Since you are having this issue in your <code>-viewDidLoad</code>, I am guessing (and without the code from <code>-viewDidLoad</code>, it is only a guess) that you are trying to fetch objects from the <code>NSFetchedResultsController</code> before the <code>-executeFetch:</code> has been called on the controller and therefore you are in the land of nils.</p> <p>I would suggest setting a break point in your <code>-viewDidLoad</code> and watching the values and you walk through your code. This will tell you what is <code>nil</code> and where.</p> <p>Of course a better question is, why are you trying to put <code>NSManagedObject</code> instances into a <code>NSMutableArray</code>? Since they are already in your <code>NSFetchedResultsController</code> is there really a need to build up another array? What is the end goal?</p> <h1>Update</h1> <p>Now I understand what you are trying to do. </p> <h2>Solution 1</h2> <p>Only populate the array when a search has been conducted. Take a look at the <a href="http://developer.apple.com/iphone/library/samplecode/TableSearch/index.html" rel="nofollow noreferrer">http://developer.apple.com/iphone/library/samplecode/TableSearch/index.html</a> example code and you should see how to apply it to your situation.</p> <p>If you want to <em>enter</em> the table view with a pre-defined search then you need to perform it after you have executed a <code>-performFetch:</code> in the <code>NSFetchedResultsController</code>.</p> <h2>Solution 2</h2> <p>Modify the <code>NSPredicate</code> on the <code>NSFetchedResultsController</code> to include your search terms and then execute <code>-performFetch:</code> on the <code>NSFetchedResultsController</code>, you may have to do a <code>-reloadData</code> on the table as well, I am not sure. </p> <p>When the user clears the search field you reset the predicate and re-fetch everything. Since it is all cached there should be no performance penalty.</p> <p>Solution 2 just occurred to me and I have not tested it personally but there is no reason it shouldn't work just fine. Should even give you live updates within the search.</p>

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