Fatal error: Uncaught Error: Class 'Symfony\Component\HttpFoundation\Tests\ResponseTestCase' not found in C:\xampp\htdocs\print\vendor\symfony\http-foundation\Tests\BinaryFileResponseTest.php:20 Stack trace: #0 {main} thrown in C:\xampp\htdocs\print\vendor\symfony\http-foundation\Tests\BinaryFileResponseTest.php on line 20