Whenaddingtheadmobinmyproject,atthetimeofrunningtheapplication,itfollowswiththiserror,Idonotunderstandwhy
AdXML
com.google.android.gms.ads.AdView android:id="@ + id / adView" android: layout_width="wrap_content" android: layout_height="wrap_content" android: layout_alignParentBottom="true" android: layout_centerHorizontal="true" ads: adSize="BANNER" ads: adUnitId="@ string / banner_ad_unit_id" >
Strings: ca-app-pub- 1770401303076452/3069328127