Hey people are you all crazy, all builder have this problem. Admpb changed some things like their apis and so on. In android studio you will see your ads but not with a builder. This is bc the admob comonent needs to be updated. All you can do is wait till the team make a update. There is nothing what you can do. Only wait. Some people are crazy here. They asked each day the same and that unfriendly too. The team have to make a update fast. Hopefully the next admob update come in a few months, because all earning apps developer will get crazy bc they loose a few cents. I saw the last few days people who built apps and their first component what they use in their appis admob. They have nothing in their app really nothing, but their first component what they use is admob a time and a layout. And the first question in the community is: Why i see no ads, ? i make all things right but i dont get any ads. Before you use admob, built a app with a usecase and not after each click show the user a ad. This is not allowed and admob delete you id, and google delete your developer account and block your ip too. And who use a app with 100 of ads. It is good to have app, where you can put in a apk, and that app delete all admob and other ads networks.