Xcode NoteApp throws a"unrecognized selector sent to instance" exception - ios

Question

I'm unproficient at Objective-c and am trying to build a basic notePad app .
i've finished the first part and am getting this Exception :
2014-04-21 15:20:56.983 ToDoList[1261:60b] -[NazorienAddToDoItemViewController
addToDoItemNameField:]: unrecognized selector sent to instance 0x8c4a990
2014-04-21 15:20:57.054 ToDoList[1261:60b] *** Terminating app due to uncaught
xception 'NSInvalidArgumentException'', reason: '-[Nazorie
nAddToDoItemViewController addToDoItemNameField:]: unrecognized selector sent to
instance 0x8c4a990'"
this is the class i use for table view of the items.
NazorienToDoItemTableViewController.h class :
#import "NazorienToDoListTableViewController.h"
#import "NazorienToDoItem.h"
#import "NazorienAddToDoItemViewController.h"
#interface NazorienToDoListTableViewController ()
#end
#implementation NazorienToDoListTableViewController
-(void) loadInitialData {
NazorienToDoItem *item1 = [[NazorienToDoItem alloc] init];
item1.itemName = #"finish this app";
//Adding the to do item to the array "toDoItems"
[self.toDoItems addObject:item1];
NazorienToDoItem *item2 = [[NazorienToDoItem alloc] init];
item2.itemName = #"go to the super market";
[self.toDoItems addObject:item2];
}
-(void)unwindToList:(UIStoryboardSegue *)segue
{
NazorienAddToDoItemViewController *source = [segue sourceViewController];
NazorienToDoItem *item = source.addToDoItem;
if(item!=nil)
{
[self.toDoItems addObject:item];
[self.tableView reloadData];
}
}
- (id)initWithStyle:(UITableViewStyle)style
{
self = [super initWithStyle:style];
if (self) {
// Custom initialization
}
return self;
}
- (void)viewDidLoad
{
[super viewDidLoad];
self.toDoItems = [[NSMutableArray alloc]init];
[self loadInitialData];
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
#pragma mark - Table view data source
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
return 1;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:
(NSInteger)section
{
return [self.toDoItems count];
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:
(NSIndexPath *)indexPath
{
static NSString *cellIdentifier = #"ListPrototypeCell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:cellIdentifier
forIndexPath:indexPath];
// Configure the cell...
NazorienToDoItem *toDoItem = [self.toDoItems objectAtIndex:indexPath.row];
cell.textLabel.text = toDoItem.itemName;
if(toDoItem.completed){
cell.accessoryType = UITableViewCellAccessoryCheckmark;
}else {
cell.accessoryType = UITableViewCellAccessoryNone;
}
return cell;
}
#pragma mark - Table view delegate
//mark completed for selected rows
-(void)tableView:(UITableView*)tableView didSelectRowAtIndexPath:(NSIndexPath
*)indexPath {
//deselect the row so that cell is only tapped and not selected for editing
[tableView deselectRowAtIndexPath:indexPath animated:NO];
//returns the item at the index row of the table
NazorienToDoItem *tappedItem = [self.toDoItems objectAtIndex:indexPath.row];
//marks if item is completed or uncompleted
tappedItem.completed = !tappedItem.completed;
//reload the row
[tableView reloadRowsAtIndexPaths:#[indexPath]
withRowAnimation:UITableViewRowAnimationNone];
}
#end
this is the class i use for adding items, it holds only 1 text field and cancel and done buttons.
NazorienAddToDoItemViewController.m:
#import "NazorienAddToDoItemViewController.h"
#interface NazorienAddToDoItemViewController()
#property (weak, nonatomic) IBOutlet UITextField *textField;
#property (weak, nonatomic) IBOutlet UIBarButtonItem *doneButton;
#end
#implementation NazorienAddToDoItemViewController
-(void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender{
if (sender != self.doneButton) return;
if (self.textField.text.length>0){
self.addToDoItem = [[NazorienToDoItem alloc] init];
self.addToDoItem.itemName = self.textField.text;
self.addToDoItem.completed = NO;
//closes the keyboard
[self.textField resignFirstResponder];
}
}
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
// Custom initialization
}
return self;
}
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view.
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
#end
Edit
the error happens when i press the "done" or "cancel" buttons in my navigation bar of the NazorienAddToDoListViewAdapter class , and only after i open the keyboard to write a new item name and press either buttons....