Fatal error: Uncaught Error: Class "Illuminate\Session\Middleware\StartSession" not found in C:\WebServer\htdocs\bookshelf\app\Http\Middleware\StartSessionIfCookieExists.php:8 Stack trace: #0 {main} thrown in C:\WebServer\htdocs\bookshelf\app\Http\Middleware\StartSessionIfCookieExists.php on line 8