我的代码看起来与原始代码（https://developers.google.com/mobile-ads-sdk/docs/admob/fundamentals?hl=en#play完全一样），我确信我已正确导入所有内容，为AndroidManifest添加了元数据，活动和权限。
当我在设备上启动应用程序时，logcat给出了以下内容：
03-23 10:18:45.874: E/GooglePlayServicesUtil(12473): The Google Play services resources were not found. Check your project configuration to ensure that the resources are included.
03-23 10:18:45.974: D/WebView(12473): onSizeChanged - w:960 h:150
03-23 10:18:46.094: W/ActivityThread(12473): ClassLoader.loadClass: The class loader returned by Thread.getContextClassLoader() may fail for processes that host multiple applications. You should explicitly specify a context class loader. For example: Thread.setContextClassLoader(getClass().getClassLoader());
03-23 10:19:17.244: E/GooglePlayServicesUtil(12473): The Google Play services resources were not found. Check your project configuration to ensure that the resources are included.
03-23 10:19:17.265: E/GooglePlayServicesUtil(12473): The Google Play services resources were not found. Check your project configuration to ensure that the resources are included.
03-23 10:20:17.243: W/Ads(12473): Timed out waiting for ad response.
03-23 10:20:17.253: E/SQLiteLog(12473): (14) cannot open file at line 32512 of [00bb9c9ce4]
03-23 10:20:17.253: I/Ads(12473): Scheduling ad refresh 60000 milliseconds from now.
03-23 10:20:17.263: W/Ads(12473): Failed to load ad: 2
未找到此Google Play服务资源且无法加载广告错误正在每分钟重复一次。
我的UnitId是正确的，我的TestDevice-Id也是。
答案 0 :(得分：0)
我认为toast的消息是＆＃34;无法加载（无效请求）＆＃34;可能是因为您没有使用真实的广告单元ID更新字符串INSERT_YOUR_AD_UNIT_ID_HERE，您必须通过注册AdMob帐户或其他广告提供商并为您的应用申请ID来获取。