Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in /home/interweavesoluti/desktop.interweavesolutions.org/vendor/symfony/cache/Tests/Adapter/NullAdapterTest.php:21 Stack trace: #0 {main} thrown in /home/interweavesoluti/desktop.interweavesolutions.org/vendor/symfony/cache/Tests/Adapter/NullAdapterTest.php on line 21