Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in D:\Application\www\E-Tracking\vendor\phpunit\php-file-iterator\tests\FactoryTest.php:17 Stack trace: #0 {main} thrown in D:\Application\www\E-Tracking\vendor\phpunit\php-file-iterator\tests\FactoryTest.php on line 17