Fatal error: Uncaught Error: Class "PHPUnit_Framework_TestCase" not found in C:\xampp\htdocs\OFFLINE\VulturAr\laravel6-php74\laravel\vendor\scrivo\highlight.php\test\MarkupTest.php:33 Stack trace: #0 {main} thrown in C:\xampp\htdocs\OFFLINE\VulturAr\laravel6-php74\laravel\vendor\scrivo\highlight.php\test\MarkupTest.php on line 33