Objective c iPhone应用程序在iPad视网膜上运行，带有图像选择器，但图像选择器对象为零

这是iPhone应用程序代码，但当我遇到ipad视网膜模拟器或ipad时，它会使应用程序崩溃。我检查了很多次&我意识到选择器对象为零。但它在iPhone模拟器上运行良好。有人知道这个吗？这个应用程序只生产iPhone，但在iPad视网膜和iPad上运行

UIImagePickerController * imagePicker = [[UIImagePickerController alloc] init]; // image picker alloc 
imagePicker.delegate = self; // delegate call by self

imagePicker.allowsEditing = YES;
imagePicker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary; //Pick image in Library
[self presentModalViewController:imagePicker animated:YES]; // OPen Library


- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info                
{
    imgImage = info[UIImagePickerControllerOriginalImage]; //Get Orginial Images
    imgData = [[NSData alloc] initWithData:UIImageJPEGRepresentation((imgImage), 0.9)]; // Jpg image format
    [picker dismissModalViewControllerAnimated:YES];
} // pick image from this method

---

尝试此操作…当从库中选择图像或从相机拍摄图像时，将调用此方法

- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
{
    UIImage *image = [info valueForKey:UIImagePickerControllerOriginalImage];
    NSData *imgData = UIImagePNGRepresentation(image);

    [picker dismissModalViewControllerAnimated:YES];

}

- (void)imagePickerControllerDidCancel:(UIImagePickerController *)picker
{
    [self dismissViewControllerAnimated:YES completion:NULL];
}

---

当它崩溃时，调试器中显示的错误消息具体是什么？***由于未捕获的异常“NSInvalidArgumentException”而终止应用程序，原因：“***setObjectForKey:object不能为nil key:Image”如果您知道这件事，请帮助我。它崩溃的行的内容是什么？如果可能，您可以提供它和任何周围的行吗？打印返回的NSDictionary可能有助于调试，如下所示：NSLog@info=%@，信息；UIImage*myImage=[info objectForKey:UIImagePickerControllerOriginalImage]；我没有我的形象没有另一行崩溃。错误：-***由于未捕获的异常“NSInvalidArgumentException”而终止应用程序，原因：“***setObjectForKey:对象不能为零键：图像”