Fatal error: Uncaught Error: Class 'Symfony\Flex\Configurator\AbstractConfigurator' not found in /home/soh-works/www/3good_old/vendor/symfony/flex/src/Configurator/CopyFromPackageConfigurator.php:21 Stack trace: #0 {main} thrown in /home/soh-works/www/3good_old/vendor/symfony/flex/src/Configurator/CopyFromPackageConfigurator.php on line 21