Illegal NSTableView data source - what did I wrong? - objective-c

Question

I have an app, where I added simple images (posters) with movie names. But after run, I can see only empty table and an error in console:
Illegal NSTableView data source (). Must implement numberOfRowsInTableView: and tableView:objectValueForTableColumn:row:
Now, in my .xib file I have Table View with dataSource and delegate linked to the File's Owner. Here's the code:
MasterViewController.m
#import "MasterViewController.h"
#import "NSObject+IntengineMovieData.h"
#import "NSObject+IntengineMovieDoc.h"
#interface MasterViewController ()
#end
#implementation MasterViewController
- (void)viewDidLoad {
[super viewDidLoad];
// Do view setup here.
}
- (NSView *)tableView:(NSTableView *)tableView objectValueForTableColumn:(NSTableColumn *)tableColumn row:(NSInteger)row {
NSTableCellView *cellView = [tableView makeViewWithIdentifier:tableColumn.identifier owner:self];
if([tableColumn.identifier isEqualToString:#"MoviesColumn"]) {
IntengineMovieDoc *movieDoc = [self.movies objectAtIndex:row];
cellView.imageView.image = movieDoc.thumbImage;
cellView.textField.stringValue = movieDoc.data.title;
return cellView;
}
return cellView;
}
- (NSInteger)numberOfRowsInTableView:(NSTableView *)tableView {
return [self.movies count];
}
#end
What that problem means and how can I fix it in my case?
EDIT 1: I have MasterViewController.xib as my Main Interface. I loaded it by this:
AppDelegate.m
#import "AppDelegate.h"
#import "NSObject+IntengineMovieDoc.h"
#include "MasterViewController.h"
#interface AppDelegate ()
#property (nonatomic, strong) IBOutlet MasterViewController *masterViewController;
#property (assign) IBOutlet NSWindow *window;
#end
#implementation AppDelegate
- (void)applicationDidFinishLaunching:(NSNotification *)aNotification {
self.masterViewController = [[MasterViewController alloc]
initWithNibName:#"MasterViewController" bundle:nil];
IntengineMovieDoc *movie1 = [[IntengineMovieDoc alloc] initWithTitle:#"The Godfather" rating:5 thumbImage:[NSImage imageNamed:#"TheGodfatherThumb.jpg"] fullImage:[NSImage imageNamed:#"TheGodfather.jpg"]];
IntengineMovieDoc *movie2 = [[IntengineMovieDoc alloc] initWithTitle:#"Tree of Life" rating:4 thumbImage:[NSImage imageNamed:#"TreeOfLifeThumb.jpg"] fullImage:[NSImage imageNamed:#"TreeOfLife.jpg"]];
IntengineMovieDoc *movie3 = [[IntengineMovieDoc alloc] initWithTitle:#"Taxi Driver" rating:5 thumbImage:[NSImage imageNamed:#"TaxiDriverThumb.jpg"] fullImage:[NSImage imageNamed:#"TaxiDriver.jpg"]];
NSMutableArray *movies = [NSMutableArray arrayWithObjects: movie1, movie2, movie3, nil];
self.masterViewController.movies = movies;
[self.window.contentView addSubview:self.masterViewController.view];
self.masterViewController.view.frame = ((NSView*)self.window.contentView).bounds;
}
- (void)applicationWillTerminate:(NSNotification *)aNotification {
// Insert code here to tear down your application
}
#end