Invalid unknown request error: Cannot determine request type. Is this ad unit id correct?

Question

After updating to "new abMob", it appears to have this problem... use this code, but nothing displays:

adView = new AdView(this, AdSize.BANNER, "pub-xxxxxxxxxxxxxxxx");

and got warning:

Invalid unknown request error: Cannot determine request type. Is your ad unit id correct?

What's wrong? Using android emulator, admob 6.4.1

Answer 1

In my case, the ad unit id was incorrect in AdMob app management section! There was a ~ instead of / in the id. I fixed it by viewing the GoogleService info plist and found the correct unit id.

Change:

ca-app-pub-XXXXXXXXXX~XXXXXXXXXX

to:

ca-app-pub-XXXXXXXXXX/XXXXXXXXXX