Cannot connect to iTunes Store

无法连接 itunes store ,跟sb一样找了两天,特此记录

The "Cannot connect to iTunes Store" issue may be due to one or more of the following reasons:

The sandbox may be unreachable.
Your app does not have a bundle version (CFBundleVersion). See Setting the Version Number and Build String for more information.
Your app is running in the Simulator, which does not support in-app purchase.
You are attempting to purchase a product that is unavailable for sale. See Query the App Store for product information before presenting your app’s store UI for more information