Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in C:\sites\wasalnah.sabti-h.com\vendor\symfony\var-dumper\Tests\Server\ConnectionTest.php:21 Stack trace: #0 {main} thrown in C:\sites\wasalnah.sabti-h.com\vendor\symfony\var-dumper\Tests\Server\ConnectionTest.php on line 21