Fatal error: Uncaught Error: Class "Illuminate\Queue\SyncQueue" not found in C:\WebServer\htdocs\bookshelf\vendor\laravel\framework\src\Illuminate\Queue\DeferredQueue.php:5 Stack trace: #0 {main} thrown in C:\WebServer\htdocs\bookshelf\vendor\laravel\framework\src\Illuminate\Queue\DeferredQueue.php on line 5