Fatal error: Uncaught Error: Class 'PhpCsFixer\RuleSet\AbstractRuleSetDescription' not found in /var/www/app/appregwebservice/vendor/friendsofphp/php-cs-fixer/src/RuleSet/Sets/PERSet.php:24 Stack trace: #0 {main} thrown in /var/www/app/appregwebservice/vendor/friendsofphp/php-cs-fixer/src/RuleSet/Sets/PERSet.php on line 24