response.products count始终在应用程序购买中返回0 Xcode 4 ios

我的问题很简单，当尝试在模拟器中进行应用内购买时，响应。products count始终返回0，因此不购买。。。我一直试图调试它，但没有成功。。。。代码如下：

- (IBAction)buy500Coins:(id)sender {

[buyingAI startAnimating];

if (internetActive == NO) {

    [buyingAI stopAnimating];

    askToPurchase = [[UIAlertView alloc]
                     initWithTitle:@"No internet connection"
                     message:@"It seems you are not connected to the internet. in-app purchases require a internet connection. Please connect to the internet and try again."
                     delegate:nil
                     cancelButtonTitle:@"OK"
                     otherButtonTitles:nil, nil];


    [askToPurchase show];


} else {

    askToPurchase = [[UIAlertView alloc]
                     initWithTitle:@"Are you Sure?"
                     message:@"Are you sure you want to buy 4000 coins for 0.99$?"
                     delegate:self
                     cancelButtonTitle:@"No"
                     otherButtonTitles:@"Yes", nil];

    askToPurchase.delegate = self;

    [askToPurchase show];

    [buyingAI stopAnimating];

      }
   }

   -(void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex {



if (alertView == askToPurchase) {
    if (buttonIndex == 1) {
        if ([SKPaymentQueue canMakePayments]) {

            SKProductsRequest *request = [[SKProductsRequest alloc] initWithProductIdentifiers:[NSSet setWithObject:@"com.ge0rges.Meme_jump.500C"]];



            request.delegate = self;

            [request start];

            [buyingAI startAnimating];
            buyingAI.hidden = NO;

        } else {

            UIAlertView *tmp = [[UIAlertView alloc]
                                initWithTitle:@"Prohibited"
                                message:@"Sorry , Parental Control is enabled, you cannot make a purchase."
                                delegate:nil
                                cancelButtonTitle:@"Ok"
                                otherButtonTitles:nil, nil];
            [tmp show];  

        }  

    }  

}
}

 -(void)productsRequest:(SKProductsRequest *)request didReceiveResponse:(SKProductsResponse *)response

{
   [buyingAI stopAnimating];


SKProduct *validProduct = nil;

int count = [response.products count];
NSLog(@"%i", count);
if (count>0) {

    validProduct = [response.products objectAtIndex:0];

    SKPayment *payment = [SKPayment paymentWithProduct:validProduct];

    [[SKPaymentQueue defaultQueue] addTransactionObserver:self];

    [[SKPaymentQueue defaultQueue] addPayment:payment]; // <-- KA CHING!





} else {

    UIAlertView *notAvail = [[UIAlertView alloc]
                             initWithTitle:@"Not Available"
                             message:@"Sorry there seems to be a problem. Please try again later."
                             delegate:nil
                             cancelButtonTitle:@"Ok"
                             otherButtonTitles:nil, nil];

    [notAvail show];

  }
}

-(void)paymentQueue:(SKPaymentQueue *)queue updatedTransactions:(NSArray *)transactions {
   for (SKPaymentTransaction *transaction in transactions) {
       switch (transaction.transactionState) {
          case SKPaymentTransactionStatePurchasing:
        {
            [buyingAI startAnimating];
            buyingAI.hidden = NO;

            break;
        }

        case SKPaymentTransactionStatePurchased:
        {

            [[SKPaymentQueue defaultQueue] finishTransaction:transaction];

            [buyingAI stopAnimating];

            UIAlertView *complete = [[UIAlertView alloc]
                                     initWithTitle:@"Complete"
                                     message:@"You have received 4000 Coins."
                                     delegate:nil
                                     cancelButtonTitle:@"Awesome!"
                                     otherButtonTitles:nil, nil];
            [complete show];


            allCoins += 4000;

            break;
        }

        case SKPaymentTransactionStateRestored:
        {

            [[SKPaymentQueue defaultQueue] finishTransaction:transaction];

            [buyingAI stopAnimating];

            break;
        }

        case SKPaymentTransactionStateFailed:
        {

            if (transaction.error.code != SKErrorPaymentCancelled) {

                UIAlertView *failed = [[UIAlertView alloc]
                                       initWithTitle:@"Failed"
                                       message:@"Oops there seems to be a problem. Please   try again later and make sure your internet connection is active."
                                       delegate:nil
                                       cancelButtonTitle:@"Ok :("
                                       otherButtonTitles:nil, nil];
                [failed show];

            }
            [[SKPaymentQueue defaultQueue] finishTransaction:transaction];

            [buyingAI stopAnimating];

               break;
            }
        }
    }
}

-（iAction）购买500枚硬币：（id）发送者{
[buyingAI startAnimating]；
如果（internetActive==否）{
[buyingAI停止动画制作]；
ASKTopurCase=[[UIAlertView alloc]
initWithTitle:@“没有internet连接”
消息：@“您似乎未连接到internet。应用内购买需要internet连接。请连接到internet，然后重试。”
代表：无
取消按钮：@“确定”
其他按钮类型：无，无]；
[Asktopurcase show]；
}否则{
ASKTopurCase=[[UIAlertView alloc]
initWithTitle:@“你确定吗？”
信息：@“您确定要以0.99美元的价格购买4000枚硬币吗？”
代表：赛尔夫
取消按钮：@“否”
其他按钮提示：@“是”，无]；
asktopurcase.delegate=self；
[Asktopurcase show]；
[buyingAI停止动画制作]；
}
}
-（无效）alertView:（UIAlertView*）alertView单击按钮索引：（NSInteger）按钮索引{
if（alertView==asktopurcase）{
如果（按钮索引==1）{
如果（[SKPaymentQueue canMakePayments]）{
SKProductsRequest*请求=[[SKProductsRequest alloc]initWithProductIdentifiers:[NSSet setWithObject:@“com.ge0rges.Meme_jump.500C]”；
request.delegate=self；
[请求启动]；
[buyingAI startAnimating]；
buyingAI.hidden=否；
}否则{
UIAlertView*tmp=[[UIAlertView alloc]
initWithTitle:@“禁止”
消息：@“对不起，家长控制已启用，您无法购买。”
代表：无
取消按钮：@“确定”
其他按钮类型：无，无]；
[tmp秀]；
}  
}  
}
}
-（无效）产品请求：（SKProductsRequest*）请求DID接收方响应：（SKProductsResponse*）响应
{
[buyingAI停止动画制作]；
SKProduct*validProduct=nil；
int count=[response.products count]；
NSLog（@“%i”，计数）；
如果（计数>0）{
validProduct=[response.products对象索引：0]；
SKPayment*payment=[SKPayment paymentWithProduct:validProduct]；
[[SKPaymentQueue defaultQueue]addTransactionObserver:self]；
[[SKPaymentQueue defaultQueue]添加付款：付款]；//必须确保标识符是正确的，但拼写错误。
无效产品标识符的内容是什么？iTunesConnect中的产品状态如何？iTunesConnect表示已准备好提交应用内购买。如何从
SKProductsResponse中获取无效产品标识符的内容de>我在执行以下操作时得到了com.ge0rges.Meme_jump.500C:NSLog（@“%@”，response.invalidProductIdentifiers）；啊，我知道问题出在哪里了，我用了一个“j”代替了j谢谢你的启发！