Fatal error: Uncaught Error: Interface "Lcobucci\JWT\Signer\Key" not found in I:\www\oauth2\resource_server\vendor\lcobucci\jwt\src\Signer\Key\InMemory.php:14 Stack trace: #0 {main} thrown in I:\www\oauth2\resource_server\vendor\lcobucci\jwt\src\Signer\Key\InMemory.php on line 14