Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in /home/devmecseminars/public_html/mec/vendor/symfony/psr-http-message-bridge/Tests/ArgumentValueResolver/PsrServerRequestResolverTest.php:17 Stack trace: #0 {main} thrown in /home/devmecseminars/public_html/mec/vendor/symfony/psr-http-message-bridge/Tests/ArgumentValueResolver/PsrServerRequestResolverTest.php on line 17