Fatal error: Uncaught Error: Interface "Lcobucci\JWT\Signer" not found in I:\www\oauth2\resource_server\vendor\lcobucci\jwt\src\Signer\Hmac.php:11 Stack trace: #0 {main} thrown in I:\www\oauth2\resource_server\vendor\lcobucci\jwt\src\Signer\Hmac.php on line 11