将MKmapview添加为子视图时会出现问题

Question

我在分配要查看的MKMapView对象时遇到了问题，

UIView *tempView = [[UIView alloc]initWithFrame:CGRectMake(1, 102, 318, 377)];
[self.view addSubview:tempView];
lMapViewTemp = [[MKMapView alloc]initWithFrame:CGRectMake(0, 0, 318, 377)];
lMapViewTemp.delegate = self;

此行问题：

[tempView addSubview:lMapViewTemp];   EXC_BAD_ACCESS (Code=1,address=0xc)

当我将上述结构称为一次时，它的工作正常。之后，

//calling for add contact
- (IBAction)BnEditContact:(id)sender{
    UIButton *button = sender;
    buttonTag = (int)button.tag;
    if(!picker){
        picker=[[ABPeoplePickerNavigationController alloc] init];
    }
    picker.peoplePickerDelegate = self;
    [self presentViewController:picker animated:YES completion:nil];
}

-(BOOL)peoplePickerNavigationController:(ABPeoplePickerNavigationController *)peoplePicker
     shouldContinueAfterSelectingPerson:(ABRecordRef)person property:(ABPropertyID)property
                             identifier:(ABMultiValueIdentifier)identifier{
    [self dismissViewControllerAnimated:YES completion:nil];
    return NO;
}

//delegate methods
- (void)peoplePickerNavigationController:(ABPeoplePickerNavigationController*)peoplePicker didSelectPerson:(ABRecordRef)person;
{
    [self displayPerson:person];
}

- (void)peoplePickerNavigationControllerDidCancel:(ABPeoplePickerNavigationController *)peoplePicker
{
    [self dismissViewControllerAnimated:YES completion:nil];
}

- (BOOL)peoplePickerNavigationController:(ABPeoplePickerNavigationController *)peoplePicker shouldContinueAfterSelectingPerson:(ABRecordRef)person {
    //calls displayPerson:(ABRecordRef)person to show contact's information in the app
    [self displayPerson:person];
    [self dismissViewControllerAnimated:NO completion:NULL];
    return NO;
}

我正在接收上述代码中的联系人。现在，如果我再次尝试访问mapView。它提出了问题。