Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /home/flighto/e-commerce/vendor/sylius-labs/polyfill-symfony-security/tests/Core/Exception/UserNotFoundExceptionTest.php:12 Stack trace: #0 {main} thrown in /home/flighto/e-commerce/vendor/sylius-labs/polyfill-symfony-security/tests/Core/Exception/UserNotFoundExceptionTest.php on line 12