Fatal error: Uncaught Error: Interface "Symfony\Component\DependencyInjection\LazyProxy\PhpDumper\DumperInterface" not found in C:\Apache24\htdocs\cms_upgrade\vendor\symfony\dependency-injection\LazyProxy\PhpDumper\NullDumper.php:23 Stack trace: #0 {main} thrown in C:\Apache24\htdocs\cms_upgrade\vendor\symfony\dependency-injection\LazyProxy\PhpDumper\NullDumper.php on line 23