Fatal error: Uncaught Error: Class 'AbstractFunctionalTest' not found in C:\xampp\htdocs\reservation\vendor\anlutro\l4-settings\tests\functional\JsonTest.php:3 Stack trace: #0 {main} thrown in C:\xampp\htdocs\reservation\vendor\anlutro\l4-settings\tests\functional\JsonTest.php on line 3