Fatal error: Uncaught Error: Interface 'PhpCsFixer\Differ\DifferInterface' not found in /var/www/app/appregwebservice/vendor/friendsofphp/php-cs-fixer/src/Differ/NullDiffer.php:20 Stack trace: #0 {main} thrown in /var/www/app/appregwebservice/vendor/friendsofphp/php-cs-fixer/src/Differ/NullDiffer.php on line 20