测试AdUnit正常但自定义AdUnit无法显示（react-native-admob）求助

Hey there, let's work through this Admob issue together—this is super common when switching from test IDs to production ones, so don't stress too much! Here are the key troubleshooting steps to try:

1. 确认AdUnitID的准确性 #

• Double-check that you’ve copied the correct AdUnitID from your Admob dashboard. Make sure it matches the ad format you’re using (e.g., banner, interstitial, rewarded ad) and the platform (iOS vs. Android—Admob generates separate IDs for each).
• Verify that the ad unit is actually created and enabled in your Admob account (sometimes accidental deletion or disabled status can cause this).

2. 检查Admob账号状态 #

• Ensure your Admob account is fully verified: have you completed the payment information setup? Unverified accounts often restrict ad serving.
• Check the Alerts section in your Admob dashboard for any policy violations or account restrictions—these can block ads from serving even if your code is correct.

3. 给新AdUnitID一点时间 #

Newly created ad units don’t start serving ads immediately. Admob needs time to crawl your app and match it with relevant ad inventory. This can take anywhere from a few hours to 1-2 days, especially for new accounts. Try testing again after some time has passed.

4. 验证应用级配置 #

Don’t forget the critical app-level ID setup (this is different from your AdUnitID):

• Android: In your AndroidManifest.xml, confirm you’ve added the Admob application ID meta-data tag:

  <meta-data
      android:name="com.google.android.gms.ads.APPLICATION_ID"
      android:value="ca-app-pub-xxxxxxxxxxxxxxxx~yyyyyyyyyy"/>
  

• iOS: In your Info.plist, add the GADApplicationIdentifier key with your app ID:

  <key>GADApplicationIdentifier</key>
  <string>ca-app-pub-xxxxxxxxxxxxxxxx~yyyyyyyyyy</string>
  

Missing this setup is one of the most common causes of "invalid response" errors.

5. 优化测试环境 #

• Test on a physical device instead of a simulator/emulator—sometimes simulators have caching issues or limited ad serving capabilities.
• Disable any VPN or proxy services that might interfere with the ad server connection, as these can trigger invalid response errors.

6. 获取更详细的错误信息 #

重新启用onAdFailedToLoad属性并打印完整的错误详情，比如：

onAdFailedToLoad={(error) => {
  console.log('Ad failed to load:', error.code, error.message);
}}

错误代码能给你更具体的线索——比如错误码3代表"无广告填充"（和等待广告资源匹配有关），其他代码可能指向配置问题。

内容的提问来源于stack exchange，提问作者James Christopher