Fatal error: Uncaught Error: Class "OpenApi\Annotations\AbstractAnnotation" not found in C:\xampp\htdocs\swagger\vendor\zircote\swagger-php---\src\Annotations\ServerVariable.php:18 Stack trace: #0 {main} thrown in C:\xampp\htdocs\swagger\vendor\zircote\swagger-php---\src\Annotations\ServerVariable.php on line 18