Fatal error: Uncaught Error: Class "SebastianBergmann\CodeCoverage\Test\Target\ValidationResult" not found in C:\xampp\htdocs\vendor\phpunit\php-code-coverage\src\Target\ValidationFailure.php:17 Stack trace: #0 {main} thrown in C:\xampp\htdocs\vendor\phpunit\php-code-coverage\src\Target\ValidationFailure.php on line 17