Fatal error: Uncaught Error: Class "PHP_CodeSniffer\Filters\Filter" not found in C:\xampp\htdocs\vendor\squizlabs\php_codesniffer\src\Filters\ExactMatch.php:16 Stack trace: #0 {main} thrown in C:\xampp\htdocs\vendor\squizlabs\php_codesniffer\src\Filters\ExactMatch.php on line 16