Fatal error: Uncaught Error: Class "Symfony\Component\HttpKernel\Fragment\RoutableFragmentRenderer" not found in C:\Apache24\htdocs\cms_upgrade\vendor\symfony\http-kernel\Fragment\InlineFragmentRenderer.php:29 Stack trace: #0 {main} thrown in C:\Apache24\htdocs\cms_upgrade\vendor\symfony\http-kernel\Fragment\InlineFragmentRenderer.php on line 29