Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in C:\xampp\htdocs\hoteline\vendor\symfony\css-selector\Tests\Parser\Handler\AbstractHandlerTestCase.php:22 Stack trace: #0 {main} thrown in C:\xampp\htdocs\hoteline\vendor\symfony\css-selector\Tests\Parser\Handler\AbstractHandlerTestCase.php on line 22