Fatal error: Uncaught Error: Interface "Symfony\Component\Mailer\Transport\Smtp\Auth\AuthenticatorInterface" not found in C:\svn\conexerp\vendor\symfony\mailer\Transport\Smtp\Auth\LoginAuthenticator.php:21 Stack trace: #0 {main} thrown in C:\svn\conexerp\vendor\symfony\mailer\Transport\Smtp\Auth\LoginAuthenticator.php on line 21