Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in E:\xampp\htdocs\vendor\symfony\http-kernel\Tests\DependencyInjection\ResettableServicePassTest.php:15 Stack trace: #0 {main} thrown in E:\xampp\htdocs\vendor\symfony\http-kernel\Tests\DependencyInjection\ResettableServicePassTest.php on line 15