Notice: Undefined variable: container in /var/www/html/autocar/vendor/symfony/framework-bundle/Tests/DependencyInjection/Fixtures/php/serializer_enabled.php on line 3

Fatal error: Uncaught Error: Call to a member function loadFromExtension() on null in /var/www/html/autocar/vendor/symfony/framework-bundle/Tests/DependencyInjection/Fixtures/php/serializer_enabled.php:3 Stack trace: #0 {main} thrown in /var/www/html/autocar/vendor/symfony/framework-bundle/Tests/DependencyInjection/Fixtures/php/serializer_enabled.php on line 3