admob getting an ad response. ErrorCode: 0 Failed to load ad:0

Question

I have followed many answers about that error here, but my problem is not solved. Every time I run my app no ads appear and I get this error message in Logcat:

Answer 1

Open your adMob account and create new sets of keys,and put this keys(banner/interstitial)in your project.this is happens to me once i fixed like this,try this solution. or still issues create new app (just change the name) in adMob and create new keys