Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /home/appgulf1/elevator.hifisys.com/elevator/vendor/symfony/console/Tests/Formatter/NullOutputFormatterStyleTest.php:20 Stack trace: #0 {main} thrown in /home/appgulf1/elevator.hifisys.com/elevator/vendor/symfony/console/Tests/Formatter/NullOutputFormatterStyleTest.php on line 20