HPHP Fatal error: Uncaught Error: Class “IlluminateSupportFacadesRoute” not found in C:xampphtdocsexample-approutesweb.php:15 how can i solvE

HP Fatal error: Uncaught Error: Class “IlluminateSupportFacadesRoute” not found in C:xampphtdocsexample-approutesweb.php:15

I M TRYING TO TOUTE ROUTES WEB.PHP AND I GET AN ERROR 404 NOT FOUND AND THIS HP Fatal error: Uncaught Error: Class “IlluminateSupportFacadesRoute” not found in C:xampphtdocsexample-approutesweb.php:15