Fatal error: Uncaught Error: Class "Symfony\Cmf\Component\Routing\ProviderBasedGenerator" not found in C:\Apache24\htdocs\cms_upgrade\vendor\symfony-cmf\routing\src\ContentAwareGenerator.php:28 Stack trace: #0 {main} thrown in C:\Apache24\htdocs\cms_upgrade\vendor\symfony-cmf\routing\src\ContentAwareGenerator.php on line 28