Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in /home/discovergreece/public_html/vendor/consolidation/site-process/tests/ArgumentProcessorTest.php:9 Stack trace: #0 {main} thrown in /home/discovergreece/public_html/vendor/consolidation/site-process/tests/ArgumentProcessorTest.php on line 9