Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in /mnt/www/fss/casefiling/vendor/codeception/base/tests/unit/Codeception/Module/FilesystemTest.php:6 Stack trace: #0 {main} thrown in /mnt/www/fss/casefiling/vendor/codeception/base/tests/unit/Codeception/Module/FilesystemTest.php on line 6