Fatal error: Uncaught Error: Class "PHP_CodeSniffer_Exception" not found in C:\xampp\htdocs\php\pear\PHP\CodeSniffer\Standards\Squiz\Sniffs\Classes\ClassDeclarationSniff.php:18 Stack trace: #0 {main} thrown in C:\xampp\htdocs\php\pear\PHP\CodeSniffer\Standards\Squiz\Sniffs\Classes\ClassDeclarationSniff.php on line 18