Help: Click TableView enter a custom page B

. M file has been added # import "NextControlView. H"

 - (void) tableView: (UITableView *) tableView accessoryButtonTappedForRowWithIndexPath: (NSIndexPath *) indexPath {
NSInteger row = indexPath.row; 
NextControlView * nextControlView = [[NextControlView alloc] initWithNibName: @ "NextControlView" bundle: nil]; 
nextControlView.Page = row; 
[Self.navigationController pushViewController: nextControlView animated: YES]; 
} 

But the program execution to nextControlView.Page = row; here GDB: interrupted
Please expert guidance twelve
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NextControlView how to write