Error with Facebook API Fatal error: (Uncaught OAuthException: Error validating application)-Collection of common programming errors

11 years ago

admin

1 minute

i’m a beginner with the Facebook API. i just created an application and i want to display name and number of friends:

this is my code:

i got this

Fatal error: Uncaught OAuthException: Error validating application. Cannot get application info due to a system error. thrown in D:\softs\UwAmp\www\facebook-php-sdk\src\base_facebook.php on line 1238

I tried to display only the username like this :

But it’s not working. Only “Hello” appears :s