Fatal error: Uncaught Error: Class 'PhpCsFixer\Fixer\AbstractPhpUnitFixer' not found in /home/www/cookbook/vendor/friendsofphp/php-cs-fixer/src/Fixer/PhpUnit/PhpUnitMockShortWillReturnFixer.php:30 Stack trace: #0 {main} thrown in /home/www/cookbook/vendor/friendsofphp/php-cs-fixer/src/Fixer/PhpUnit/PhpUnitMockShortWillReturnFixer.php on line 30