Fatal error: Uncaught Error: Interface "Illuminate\Contracts\Image\Transformation" not found in C:\wamp64\houda\vendor\laravel\framework\src\Illuminate\Image\Transformations\Sharpen.php:7 Stack trace: #0 {main} thrown in C:\wamp64\houda\vendor\laravel\framework\src\Illuminate\Image\Transformations\Sharpen.php on line 7