Fatal error: Uncaught Error: Class "Symfony\Bundle\FrameworkBundle\CacheWarmer\AbstractPhpFileCacheWarmer" not found in /home/zdpktgd/ptc/vendor.old/symfony/framework-bundle/CacheWarmer/ValidatorCacheWarmer.php:28 Stack trace: #0 {main} thrown in /home/zdpktgd/ptc/vendor.old/symfony/framework-bundle/CacheWarmer/ValidatorCacheWarmer.php on line 28