How to resolve "The item you were attempting to purchase could not be found", for app, not in app purchases?

如何解决“项目你是试图购买无法找到”，为应用程序，在应用程序购买吗？

youdao

If one could not be found, it executed the Server app, waited and then opened a channel.

如果找不到，它执行的服务器应用程序，等待着，然后打开了一条通道。

youdao