🐛 [Android] Release Mode Error: Ad failed to load: LoadAdError(code: 3, domain: com.google.android.gms.ads, message: No ad config.)

Bug report

Describe the bug With flutter_admob I am able to show Interstitial ad with my app id, but when I migrated to googleads-mobile-flutter, my ad is not displayed and gives me this error:

Ad failed to load: LoadAdError(code: 3, domain: com.google.android.gms.ads, message: No ad config.)

Same thing applies to banner ads, too.

Steps to reproduce

Steps to reproduce the behavior:

1. Use a real ad id with googleads-mobile-flutter for banner or interstitial (these are the ones that I tested)
2. Use AdListener to log callbacks.
3. flutter run --release and see the error.

Expected behavior

Ads should be displayed.

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Flutter dependencies

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[houdayec]

Same problem.

Debug ads are showing using test ids (for example: ca-app-pub-3940256099942544/2247696110)

However, when using those from my Admob config, it is not working.

Admob account is working, verified and ad units have been created more than 15 days ago. No idea where the problem might come from.

[Vakil-Parth]

solution for me is to set up an app-ads.txt file exact shown below. Then I have to wait for 24 hours to get it working.

reference : https://developers.google.com/admob/android/test-ads