iphone在应用程序内购买“无法连接到iTunes Store"

可能的重复:
iPhone Store Kit无法连接到iTunes Store" >

当我请求付款时，我正在应用程序购买中实现以下错误.

i am implementing in app purchase when i requesting the payment am getting bellow error.

事务错误:Error Domain=SKErrorDomain Code=0无法连接到 iTunes Store" UserInfo=0x2dcf40 {NSLocalizedDescription=无法连接到 iTunes Store}

Transaction Error: Error Domain=SKErrorDomain Code=0 "Cannot connect to iTunes Store" UserInfo=0x2dcf40 {NSLocalizedDescription=Cannot connect to iTunes Store}

有时错误代码会是 1004.所以我无法进行交易.

Here some times the error code will be 1004. so i cant do the transaction.

有时它会显示类似购买过程失败"的警告.,但购买过程仍然正常..

in some times it displaying a warning like " has failed the purchase process." ,but still the purchase process is working fine..

我是不是做错了什么……或者这个问题的任何解决方案……?

am i doing something wrong... or any solution for this problem..?

谢谢