Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestSuite' not found in C:\xampp\htdocs\enercard\vendor\symfony\polyfill-util\TestListenerForV6.php:23 Stack trace: #0 {main} thrown in C:\xampp\htdocs\enercard\vendor\symfony\polyfill-util\TestListenerForV6.php on line 23