Question

I am a new programmer… i have following problem..

Terminating app due to uncaught exception ‘NSInternalInconsistencyException’, reason: ‘-[UIViewController _loadViewFromNibNamed:bundle:] loaded the “MapView” nib but the view outlet was not set.’

I do following

1) create a Window based application and name the project as MapApp.

2) Add the MapKit framework to the project. (Control + Click Frameworks folder -> Add -> Existing Frameworks)

3) Create a new view controller class and call it MapViewController. (not create it’s xib)

#import <UIKit/UIKit.h>
#import <MapKit/MapKit.h>

@interface MapViewController : UIViewController<MKMapViewDelegate> {
    IBOutlet UITextField *addressField;
    IBOutlet UIButton *goButton;
    IBOutlet MKMapView *mapView;
}

@end

4) create a xib file named MapView.xib. Set its type to MapViewController….

File's Owner--------->MapViewController... i already set... 

in my appDelegate.m file

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {    

// Override point for customization after application launch.


mapViewController = [[MapViewController alloc] initWithNibName:@"MapView" bundle:nil];

[window addSubview:mapViewController.view];

[self.window makeKeyAndVisible];

    return YES;
}

but when i build….

the following exception occured......

Terminating app due to uncaught exception ‘NSInternalInconsistencyException’, reason: ‘-[UIViewController _loadViewFromNibNamed:bundle:] loaded the “MapView” nib but the view outlet was not set.’

thanks for help …..

Answer 1

Check that the file’s owner of the MapView nib is set to class MapViewController. Then connect the view outlet from file’s owner to the main view of that nib.