Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in D:\Application\www\E-Tracking\vendor\phpunit\php-token-stream\tests\Token\ClosureTest.php:13 Stack trace: #0 {main} thrown in D:\Application\www\E-Tracking\vendor\phpunit\php-token-stream\tests\Token\ClosureTest.php on line 13