Fatal error: Uncaught Error: Class "Symfony\Component\CssSelector\Tests\Node\AbstractNodeTest" not found in D:\Application\www\E-Tracking\vendor\symfony\css-selector\Tests\Node\HashNodeTest.php:17 Stack trace: #0 {main} thrown in D:\Application\www\E-Tracking\vendor\symfony\css-selector\Tests\Node\HashNodeTest.php on line 17