这里没有提到的另一个原因是，您需要在真正的设备上进行测试。 随着模拟器变得越来越好，这是一个很容易犯的错误。

如果你想调试IAB，你需要做的是:

提交到谷歌播放你的应用程序的版本与IAB的权限清单: 在谷歌播放上添加一个产品到您的应用程序:管理应用程序内计费 设置有签名的自定义调试密钥库:将Eclipse配置为使用有签名的密钥库

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.

如果你想集成另一个没有发布的应用程序，但与已部署的应用程序具有相同的id、版本代码和版本名，那么不要忘记编辑appname。iml文件版本在扑动应用程序，因为我坚持它与相同的错误。

让我补充一下发生在我身上的事，也许能帮到别人。

这主要是由于签约。

由于我已经在Project结构中添加了签名细节，所以我认为每次运行时，都安装了期望的签名apk。但是选择了“调试”构建类型。

下面的修复为我解决了问题。

生成构建类型为“release”的签名apk。 手动安装apk。

如果你使用的apk版本与谷歌比赛中的apk版本不同，就会发生这种情况。