Fatal error: Uncaught Error: Interface "Symfony\Component\HttpKernel\CacheWarmer\CacheWarmerInterface" not found in /home/zdpktgd/ptc/vendor.old/symfony/serializer/CacheWarmer/CompiledClassMetadataCacheWarmer.php:22 Stack trace: #0 {main} thrown in /home/zdpktgd/ptc/vendor.old/symfony/serializer/CacheWarmer/CompiledClassMetadataCacheWarmer.php on line 22