Fatal error: Uncaught Error: Class "SebastianBergmann\CodeCoverage\Test\TestSize\TestSize" not found in D:\programs\xampp\htdocs\blog\vendor\phpunit\php-code-coverage\src\TestSize\Known.php:15 Stack trace: #0 {main} thrown in D:\programs\xampp\htdocs\blog\vendor\phpunit\php-code-coverage\src\TestSize\Known.php on line 15