Fatal error: Uncaught Error: Class "League\Fractal\Resource\ResourceAbstract" not found in C:\xampp\htdocs\projet-GMAO\vendor\league\fractal\src\Resource\Item.php:21 Stack trace: #0 {main} thrown in C:\xampp\htdocs\projet-GMAO\vendor\league\fractal\src\Resource\Item.php on line 21