Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /home/rwebserver/public_html/tdt-powersteel/vendor/symfony/mailer/Test/TransportFactoryTestCase.php:29
Stack trace:
#0 {main}
thrown in /home/rwebserver/public_html/tdt-powersteel/vendor/symfony/mailer/Test/TransportFactoryTestCase.php on line 29