IOS terminating app due to uncaught exception & #39; nsinternalinconsistencyexception& #39; reason: & #39; Unable to

Just contact iOS, follow the tutorial action error occurred

Terminating app due to uncaught exception ' nsinternalinconsistencyexception ', Reason: ' Unable-dequeue a cell with ident Ifier Cell-must Register a nib or a class for the identifier or connect a prototype Cell in a storyboard

The solution is to add a sentence:

[Self.tableview Registerclass:[uitableviewcell class] forcellreuseidentifier:cellidentifier];

The location of the addition is:

-(UITableViewCell *) TableView: (UITableView *) TableView Cellforrowatindexpath: (Nsindexpath *) Indexpath
{
static NSString *cellidentifier = @ "Listprototypecell";
[Self.tableview Registerclass:[uitableviewcell class] forcellreuseidentifier:cellidentifier];
UITableViewCell *cell = [TableView dequeuereusablecellwithidentifier:cellidentifier Forindexpath:indexpath];

Config cell
Xyztodoitem * ToDoItem = [Self.todoitem objectAtIndex:indexPath.row];

Cell.textLabel.text = Todoitem.itemname;

return cell;
}

Because just learning iOS, the reason is unclear

IOS terminating app due to uncaught exception & #39; nsinternalinconsistencyexception& #39; reason: & #39; Unable to