Fatal error: Uncaught Error: Class "Symfony\Component\DependencyInjection\ContainerBuilder" not found in /home/demoparc/public_html/ws/vendor/icanhazstring/composer-unused/config/container.php:10 Stack trace: #0 /home/demoparc/public_html/ws/vendor/icanhazstring/composer-unused/config/container.php(21): {closure}() #1 {main} thrown in /home/demoparc/public_html/ws/vendor/icanhazstring/composer-unused/config/container.php on line 10