Fatal error: Uncaught Error: Interface 'Symfony\Component\Mailer\Transport\Smtp\Auth\AuthenticatorInterface' not found in D:\workspaces\liZiPingBack\vendor\symfony\mailer\Transport\Smtp\Auth\PlainAuthenticator.php:21 Stack trace: #0 {main} thrown in D:\workspaces\liZiPingBack\vendor\symfony\mailer\Transport\Smtp\Auth\PlainAuthenticator.php on line 21