Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestSuite' not found in C:\xampp7\htdocs\edgpens\vendor\squizlabs\php_codesniffer\tests\TestSuite7.php:15 Stack trace: #0 {main} thrown in C:\xampp7\htdocs\edgpens\vendor\squizlabs\php_codesniffer\tests\TestSuite7.php on line 15