Android Question error after format pc,

[fifiddu70]

after formatting the PC and reinstalled B4A and libraries , I encountered this error when I enter the library Admob , the mistake you see on the photo , someone tell me how to solve it ?

 

[rboeck]

Its a problem with your outdated google play version, you can find many messages about in the forum.

 

[fifiddu70]

yes, google play service versione is obsoleted, now work, thanks.