Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in /var/www/app/appregwebservice/vendor/nexusphp/cs-config/src/Test/AbstractCustomFixerTestCase.php:43 Stack trace: #0 {main} thrown in /var/www/app/appregwebservice/vendor/nexusphp/cs-config/src/Test/AbstractCustomFixerTestCase.php on line 43