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Editorial Team
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Asked: 2026-05-27T18:10:38+00:00

My developing iOS application is sometimes terminated after the method addSubview: is called in

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My developing iOS application is sometimes terminated after the method addSubview: is called in the application delegate (but I’m not sure removeFromSuperview: also involved):

[self.tabBarController.view removeFromSuperview];    
[self.window addSubview:navigationController.view];

What that showed in the log is:

*** Terminating app due to uncaught exception 'NSRangeException', reason: '*** -[NSMutableArray objectAtIndex:]: index 0 beyond bounds for empty array'
*** Call stack at first throw:
(
    0   CoreFoundation                      0x019b75a9 __exceptionPreprocess + 185
    1   libobjc.A.dylib                     0x01c41313 objc_exception_throw + 44
    2   CoreFoundation                      0x019ad0a5 -[__NSArrayM objectAtIndex:] + 261
    3   <app_name>                          0x000186dd -[TableViewController tableView:numberOfRowsInSection:] + 205
    4   UIKit                               0x00a742b7 -[UISectionRowData refreshWithSection:tableView:tableViewRowData:] + 1834
    5   UIKit                               0x00a71eb1 -[UITableViewRowData numberOfRowsInSection:] + 110
    6   UIKit                               0x00b60807 -[UISearchDisplayController _updateNoSearchResultsMessageVisiblity] + 115
    7   Foundation                          0x01029669 _nsnote_callback + 145
    8   CoreFoundation                      0x0198f9f9 __CFXNotificationPost_old + 745
    9   CoreFoundation                      0x0190e93a _CFXNotificationPostNotification + 186
    10  Foundation                          0x0101f20e -[NSNotificationCenter postNotificationName:object:userInfo:] + 134
    11  UIKit                               0x008df649 -[UIWindow _setRotatableClient:toOrientation:updateStatusBar:duration:force:] + 4581
    12  UIKit                               0x008d9254 -[UIWindow _setRotatableViewOrientation:duration:force:] + 89
    13  UIKit                               0x008db38f -[UIWindow setAutorotates:forceUpdateInterfaceOrientation:] + 794
    14  UIKit                               0x008d9081 -[UIWindow setDelegate:] + 252
    15  UIKit                               0x00964dee -[UIViewController _tryBecomeRootViewControllerInWindow:] + 106
    16  UIKit                               0x00975340 -[UINavigationController viewDidMoveToWindow:shouldAppearOrDisappear:] + 72
    17  UIKit                               0x008f0e4b -[UIView(Internal) _didMoveFromWindow:toWindow:] + 918
    18  UIKit                               0x008efa60 -[UIView(Hierarchy) _postMovedFromSuperview:] + 166
    19  UIKit                               0x008e8750 -[UIView(Internal) _addSubview:positioned:relativeTo:] + 1080
    20  UIKit                               0x008e6aa3 -[UIView(Hierarchy) addSubview:] + 57
    21  <app_name>                          0x00004971 -[AppDelegate requestFinished:] + 993
    22  <app_name>                          0x0003e65b -[ASIHTTPRequest reportFinished] + 171
    23  Foundation                          0x0103e94e __NSThreadPerformPerform + 251
    24  CoreFoundation                      0x019988ff __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 15
    25  CoreFoundation                      0x018f688b __CFRunLoopDoSources0 + 571
    26  CoreFoundation                      0x018f5d86 __CFRunLoopRun + 470
    27  CoreFoundation                      0x018f5840 CFRunLoopRunSpecific + 208
    28  CoreFoundation                      0x018f5761 CFRunLoopRunInMode + 97
    29  GraphicsServices                    0x01db11c4 GSEventRunModal + 217
    30  GraphicsServices                    0x01db1289 GSEventRun + 115
    31  UIKit                               0x008c5c93 UIApplicationMain + 1160
    32  <app_name>                          0x00002a30 main + 192
    33  <app_name>                          0x00002255 start + 53
)
terminate called throwing an exception

How can I find out the reason why the app is terminated by this log and solve it? Thank you.

Note: Edit 1 and Edit 2 were removed.

Edit 3: This implemented code of tableView:numberOfRowsInSection: method works for me:

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
    if (tableView == self.searchDisplayController.searchResultsTableView)
    {
        if (filteredSectionListOfAddressBook && filteredSectionListOfAddressBook.count)
        {
            return [[filteredSectionListOfAddressBook objectAtIndex:section] count];
        }
        else
        {
            return 0;
        }
    }
    else if (tableView == self.tableView)
    {
        if (sectionListOfAddressBook && sectionListOfAddressBook.count)
        {
            return [[sectionListOfAddressBook objectAtIndex:section] count];
        }
        else
        {
            return 0;
        }
    }

    return 0;
}
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1 Answer

  1. Editorial Team

    In your stack trace – there is a tableview – you need to ensure that there is data to populate the table. Thats where this error is coming from

    *** Terminating app due to uncaught exception 'NSRangeException', reason: '*** -[NSMutableArray objectAtIndex:]: index 0 beyond bounds for empty array

    You could for the moment ensure there is no data by making sure that

    tableView:numberOfRowsInSection: returns 0;

    Have you implemented the TableViews delegate methods?

    Read about it here About Table Views in iOS-Based Applications

    here UITableViewDataSource Protocol Reference

    and here UITableViewDelegate Protocol Reference

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