I want to upgrade my app to have in-app purchases. I added to the manifest: CreateResourceFromFile(Macro, GooglePlayBilling.GooglePlayBilling). The application is currently without additional code communicating with the billing system. After compiling to aab, I added the app to the Closed testing track in the Google Play Console. But in Monetize - Product- In-app product I can't create an in app product, it tells me: "Your app doesn't have any in-app products yet. To add in-app products, you need to add the BILLING permission to your APK .Upload new APK". What is wrong?