Fatal error: Uncaught Error: Interface "PhpCsFixer\Fixer\FixerInterface" not found in C:\xampp\htdocs\proje-adi\vendor\phar-io\manifest\tools\php-cs-fixer.d\PhpdocSingleLineVarFixer.php:19 Stack trace: #0 {main} thrown in C:\xampp\htdocs\proje-adi\vendor\phar-io\manifest\tools\php-cs-fixer.d\PhpdocSingleLineVarFixer.php on line 19