Fatal error: Uncaught Error: Class "PHPUnit_Framework_Constraint" not found in D:\Application\www\Training\vendor\laravel\framework\src\Illuminate\Foundation\Testing\Constraints\HasInDatabase.php:8 Stack trace: #0 {main} thrown in D:\Application\www\Training\vendor\laravel\framework\src\Illuminate\Foundation\Testing\Constraints\HasInDatabase.php on line 8