what does this error message mean? ivar error?

[s7162]

I get this error message but i have no idea how to fix it,

Existing ivar 'delegate' for unsafe_retained property 'delegate' must be __unsafe_retained

what does this mean? I used the same code before and it works, but now this comes up, its quite confusing.

[baja_yu]

How about actually posting the code?

[s7162]

Originally Posted by baja_yu

How about actually posting the code?

its from the photo picker app from apple,

.h file -

@protocol OverlayViewControllerDelegate;

@interface OverlayViewController : UIViewController <UINavigationControllerDelegate, UIImagePickerControllerDelegate>
{
    id <OverlayViewControllerDelegate> delegate;
    
    UIImagePickerController *imagePickerController;
    
@private
    UIBarButtonItem *takePictureButton;
    UIBarButtonItem *startStopButton;
    UIBarButtonItem *timedButton;
    UIBarButtonItem *cancelButton;
    
    NSTimer *tickTimer;
    NSTimer *cameraTimer;
    
    SystemSoundID tickSound;
}    

@property (nonatomic, assign) id <OverlayViewControllerDelegate> delegate;

.m file,

#import "OverlayViewController.h"

enum
{
	kOneShot,       // user wants to take a delayed single shot
	kRepeatingShot  // user wants to take repeating shots
};

@implementation OverlayViewController

@synthesize delegate, takePictureButton, startStopButton, cancelButton, timedButton, tickTimer, cameraTimer, imagePickerController;

[baja_yu]

The sample works fine for me. Are you using 4.3 SDK, and did you make any modifications to the code?