NSArrayI insertObject:atIndex:]: unrecognized selector sent to instance 0x9c754c0 2013-06-19 00:16:0

NSUInteger count=indexPath.row+1;
        NSMutableArray *arCells=[NSMutableArray array];
        for(NSDictionary *dInner in ar ) {
            [arCells addObject:[NSIndexPath indexPathForRow:count inSection:0]];
            if (tableView == self.searchDisplayController.searchResultsTableView)
              //crashing
              //  [self.FilterArray insertObject:dInner atIndex:count++];
            else
                [self.arForTable insertObject:dInner atIndex:count++];
            [insertedIndexPath addObject:[NSIndexPath indexPathForRow:count inSection:0]];
        }

This error 'unrecognized selector sent to instance' typically mean the object receiving the message isn't what you think it is. And typically, this means the address got dereferenced and reassigned to another object. So you have a retain count problem somewhere

Sounds like your @property declaration for arForTable does not have a strong attribute so there's no retention

it's crashing for Filterarray only and property have the retain attribute

This error 'unrecognized selector sent to instance' typically mean the object receiving the message isn't what you think it is. And typically, this means the address got dereferenced and reassigned to another object. So you have a retain count problem somewhere

NSMutableArray