Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in E:\install\laragon\www\logisoft_invoice_dev\vendor\symfony\mailer\Test\TransportFactoryTestCase.php:29 Stack trace: #0 {main} thrown in E:\install\laragon\www\logisoft_invoice_dev\vendor\symfony\mailer\Test\TransportFactoryTestCase.php on line 29