Fatal error: Uncaught Error: Class "PhpCsFixer\RuleSet\AbstractRuleSetDescription" not found in /home/kiwakim/stock/vendor/friendsofphp/php-cs-fixer/src/RuleSet/Sets/PHP71MigrationSet.php:20 Stack trace: #0 {main} thrown in /home/kiwakim/stock/vendor/friendsofphp/php-cs-fixer/src/RuleSet/Sets/PHP71MigrationSet.php on line 20