Fatal error: Uncaught Error: Class 'PhpCsFixer\Tokenizer\AbstractTransformer' not found in /var/www/app/appregwebservice/vendor/friendsofphp/php-cs-fixer/src/Tokenizer/Transformer/FirstClassCallableTransformer.php:25 Stack trace: #0 {main} thrown in /var/www/app/appregwebservice/vendor/friendsofphp/php-cs-fixer/src/Tokenizer/Transformer/FirstClassCallableTransformer.php on line 25