Fatal error: Uncaught Error: Interface "Symfony\Component\Routing\RouterInterface" not found in C:\AppServ\Apache\2.4.58\htdocs\sets\vendor\symfony\routing\Router.php:38 Stack trace: #0 {main} thrown in C:\AppServ\Apache\2.4.58\htdocs\sets\vendor\symfony\routing\Router.php on line 38