Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in /home/rt66ugcom/public_html/admin/vendor/symfony/contracts/Tests/Cache/CacheTraitTest.php:22 Stack trace: #0 {main} thrown in /home/rt66ugcom/public_html/admin/vendor/symfony/contracts/Tests/Cache/CacheTraitTest.php on line 22