应用程序有iAd配置错误

Question

我正在开发一个简单的应用程序，我实现了iAd Banner View。如果我运行该代码我得到错误，我的代码没有错误 “操作无法完成。应用程序有iAd网络配置错误”我想知道错误背后的原因是什么。我正在使用XCode 4.2和iOS 5模拟器。

这是我写的代码。

-(void)moveBannerViewOffScreen
{
   CGRect originalTableViewFrame = self.tableView.frame;
   CGFloat newTableHeight = self.view.frame.size.height;
   CGRect newTableFrame = originalTableViewFrame;
   newTableFrame.size.height = newTableHeight;

   CGRect newBannerFrame = self.bannerView.frame;
   newBannerFrame.origin.y = newTableHeight;

   self.tableView.frame = newTableFrame;
   self.bannerView.frame = newBannerFrame;
}

-(void)moveBannerViewOnScreen
{
   CGRect newBannerFrame = self.bannerView.frame;
   newBannerFrame.origin.y = self.view.frame.size.height - newBannerFrame.size.height;

   CGRect originalTableFrame = self.tableView.frame;
   CGFloat newTableHeight = self.view.frame.size.height - newBannerFrame.size.height;
   CGRect newTableFrame = originalTableFrame;
   newTableFrame.size.height = newTableHeight;

   [UIView beginAnimations:@"BannerViewIntro" context:NULL];
   self.tableView.frame = newTableFrame;
   self.bannerView.frame = newBannerFrame;
   [UIView commitAnimations];
}

-(void)bannerView:(ADBannerView *)banner didFailToReceiveAdWithError:(NSError *)error
{
   [self moveBannerViewOffScreen];
   UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Error" message:[error    localizedDescription] delegate:self cancelButtonTitle:@"OK" otherButtonTitles: nil];
   [alert show];
}

-(void)bannerViewDidLoadAd:(ADBannerView *)banner
{
   [self moveBannerViewOnScreen];
   NSLog(@"Success");
}