Fatal error: Uncaught Error: Class "PhpCsFixer\AbstractFixer" not found in I:\www\pvcRegex\vendor\friendsofphp\php-cs-fixer\src\Fixer\Casing\ConstantCaseFixer.php:34 Stack trace: #0 {main} thrown in I:\www\pvcRegex\vendor\friendsofphp\php-cs-fixer\src\Fixer\Casing\ConstantCaseFixer.php on line 34