Fatal error: Uncaught Error: Class "PhpCsFixer\AbstractProxyFixer" not found in I:\www\pvcRegex\vendor\friendsofphp\php-cs-fixer\src\Fixer\NamespaceNotation\NoBlankLinesBeforeNamespaceFixer.php:30 Stack trace: #0 {main} thrown in I:\www\pvcRegex\vendor\friendsofphp\php-cs-fixer\src\Fixer\NamespaceNotation\NoBlankLinesBeforeNamespaceFixer.php on line 30