Problems with load Detailview

Question

I have this code:

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
    TabellenDetailViewController *detailViewController2 = [self.storyboard instantiateViewControllerWithIdentifier:@"TabellenDetailViewController"];
    Book2 *aBook2 = [books2 objectAtIndex:indexPath.row];
    detailViewController2.tea_names = [NSString stringWithFormat:@"%@", aBook2.tea_name];
    [self.navigationController pushViewController:detailViewController2 animated:YES];
}

For better understanding I have a Storyboard with:

Navigation Controller -> MasterTableViewController -> DetailMasterTableViewController -> TabelleViewController -> DetailTabelleViewcontroller

It works fine to TabelleViewController and If I pick a cell in TabelleViewController the program stops with that error:

int main(int argc, char *argv[])
{
    @autoreleasepool {
        return UIApplicationMain(argc, argv, nil, NSStringFromClass([XMLAppDelegate class])); <--- Here with Thread1:Program received signal: "SIGABRT".
    }
}

Answer 1

• Check the tea_names property is retained by the TabellenDetailViewController instance
• Add the exceptions breakpoint to see the exact exception location

Click on the Breakpoints symbol (2nd from the right) in the Navigator pane, click the + button at the bottom of the pane, and select Add Exception Breakpoint. From the bubble that appears, I selected Objective-C from the Exception choice (although I suspect you can safely leave it at all if you desire), and I left the Break selection at On Throw. Once you click Done, you should then have a new exceptions breakpoint in the list. (read more)

• Enable zombie-mode to track the memory problems (Xcode 4 how to)