Fatal error: Uncaught Error: Interface "PHP_CodeSniffer_MultiFileSniff" not found in C:\xampp\htdocs\php\pear\PHP\CodeSniffer\Standards\Generic\Sniffs\Classes\DuplicateClassNameSniff.php:26 Stack trace: #0 {main} thrown in C:\xampp\htdocs\php\pear\PHP\CodeSniffer\Standards\Generic\Sniffs\Classes\DuplicateClassNameSniff.php on line 26