解决方案

在play store上传应用后请稍等，因为谷歌需要一段时间来更新应用版本。它会起作用的!

当你在上传apk后添加了应用内购买，但你还没有在play store中发布应用(alpha, beta和产品)时，也会出现这个问题。

这基本上意味着，在你将apk发布到Play商店后(alpha, beta和成品)，你必须添加应用内购买。否则你将无法购买或查询应用内购买。

2021年结论

对于所有关心调试的人，您可以在调试模式下运行、调试和测试代码

下面是你如何测试这个过程:

(当然，这取决于您已经添加并激活了您的产品，并且您的代码已经准备好与这些产品集成)

将com.android. selling . billing添加到清单中 上传签名apk到内部测试 添加许可证测试员(播放控制台->设置->许可证测试)-如果你在你的设备上使用多个帐户，你不确定使用哪一个，只需将它们都添加为测试员。 像往常一样，从Android Studio运行应用程序(*应用程序应该具有与您刚刚上载到内部测试的应用程序相同的版本代码)

我做了上面的事情，它工作得很好。

与SO和其他网站上的许多答案和评论相反，你不需要使用从谷歌Play下载到测试设备上的产品alpha/beta版本进行初步测试(alpha/beta发布过程通常要花半天时间)。你也不需要从你的开发工作室加载和重新加载一个签名的apk到你的测试设备。

You CAN debug preliminary Google Play in app billing services using the debug app as loaded from your developer studio directly to your test device via ADB. If you are experiencing errors that prevent this, likely you have done something wrong in your code. Pay especially close attention to the CASE of your SKU's (product ids) and their format (for example, if you load your APK as com.mydomain.my_product_id, be sure your try to purchase it this way - providing the same case and domain). Also, pay especially close attention to your itemType - this should be either "inapp" or "subs" for managed/unmanaged in app purchases or subscriptions, respectively.

As suggested by Chirag Patel, provided you have your billing code properly established, perform all testing using the android.test.purchased Sku (product ID) during your preliminary tests. Check for this ID throughout your billing operations to pass it through signature, token and payload checks, since this data is not provided by the Google test system. Additionally, give one of your test products this ID to test its purchase, unlock/load and presentation all the way through your schema. To CLEAR the purchase, simply consume it, passing the same Sku AND a token string formatted this way - no other fields are relevant :

    "inapp:"+appContext.getAppContext().getPackageName()+":android.test.purchased";

Once you have completed this phase of testing, move to semi-live testing with your alpha/beta product. Create a Google group (essentially a mailing list), add your test users emails to it, and add/invite this group to test your device in this phase (performed at the "APK" portion of your app's Google developer listing). Purchases will be simulated but not actually charged - however to clear and re-test the purchases, Google indicates that you must refund them from your Google wallet. THIS is the only phase of testing that requires the time-consuming process of using alpha/beta loads and test users.

在我的情况下，由于安装的apk和上传到市场的apk的签名不同，我看到了相同的消息。

解决方案

在play store上传应用后请稍等，因为谷歌需要一段时间来更新应用版本。它会起作用的!