我用故事板创建了一个单一的视图应用程序.我所看到的只有MKMapView,就是这样.它编译时没有错误或警告,但是当我运行它时,我在控制台窗口中收到此错误：
<Error>: ImageIO: CGImageReadSessionGetCachedImageBlockData *** CGImageReadSessionGetCachedImageBlockData: readSession [0x8ab5750] has bad readRef [0x14b79c70]
我正在使用Xcode 4.3和iPhone模拟器5.1.有什么想法吗？
.h文件
#import UIKit/UIKit.h
#import CoreLocation/CoreLocation.h
#import MapKit/MapKit.h
@interface WhereamiViewController : UIViewController <CLLocationManagerDelegate,MKMapViewDelegate>
{
IBOutlet MKMapView *worldView;
IBOutlet UIActivityIndicatorView *activityIndicator;
IBOutlet UITextField *locationTitleField;
}
@end
.m文件
#import "WhereamiViewController.h"
@interface WhereamiViewController ()
@end
@implementation WhereamiViewController
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view,typically from a nib.
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
@end