Fatal error: Uncaught Error: Class "Illuminate\Database\Query\Builder" not found in I:\www\frameworks\Laravel\vendor\laravel\framework\src\Illuminate\Database\Query\JoinClause.php:7 Stack trace: #0 {main} thrown in I:\www\frameworks\Laravel\vendor\laravel\framework\src\Illuminate\Database\Query\JoinClause.php on line 7