Android Studio Admob Error “No Ads Config” from Domain “com.google.android.gms.ads

D/MyApp: {
“Code”: 3,
“Message”: “No ad config.”,
“Domain”: “com.google.android.gms.ads”,
“Cause”: “null”,
“Response Info”: {
“Response ID”: “null”,
“Mediation Adapter Class Name”: “”,
“Adapter Responses”: [],
“Response Extras”: {}
}
}
I/Ads: Ad failed to load : 3

In my case, solved by

・Renew App’s version code and version name at build.gradle
・Sync and Run app

I guess that test Admob cannot be showon in the development environment with the currently released version code and number.

現在公開しているバージョンのまま開発環境でテスト用Admobは出せないという事でしょうか？

build.gradleでversion codeとnameを更新してSyncすると無事にテスト用広告が表示できました。