Fatal error: Uncaught Error: Call to a member function loadFromExtension() on null in /var/www/html/vendor/symfony/swiftmailer-bundle/Tests/DependencyInjection/Fixtures/config/php/stream_options.php:2 Stack trace: #0 {main} thrown in /var/www/html/vendor/symfony/swiftmailer-bundle/Tests/DependencyInjection/Fixtures/config/php/stream_options.php on line 2