Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /home/appgulf1/elevator.hifisys.com/elevator/vendor/symfony/error-handler/Tests/ErrorRenderer/HtmlErrorRendererTest.php:17 Stack trace: #0 {main} thrown in /home/appgulf1/elevator.hifisys.com/elevator/vendor/symfony/error-handler/Tests/ErrorRenderer/HtmlErrorRendererTest.php on line 17