Fatal error: Uncaught Error: Class "Symfony\Component\Routing\Generator\UrlGenerator" not found in C:\apache24\htdocs\rccm\portailWeb\vendor\symfony\routing\Generator\CompiledUrlGenerator.php:21 Stack trace: #0 {main} thrown in C:\apache24\htdocs\rccm\portailWeb\vendor\symfony\routing\Generator\CompiledUrlGenerator.php on line 21