Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in D:\Application\www\E-Tracking\vendor\fzaninotto\faker\test\Faker\Provider\de_DE\InternetTest.php:11 Stack trace: #0 {main} thrown in D:\Application\www\E-Tracking\vendor\fzaninotto\faker\test\Faker\Provider\de_DE\InternetTest.php on line 11