Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in /home/interweavesoluti/desktop.interweavesolutions.org/vendor/symfony/flex/tests/FlexTest.php:36 Stack trace: #0 {main} thrown in /home/interweavesoluti/desktop.interweavesolutions.org/vendor/symfony/flex/tests/FlexTest.php on line 36