Fatal error: Uncaught Error: Class "MediaWiki\SpecialPage\SpecialPage" not found in C:\xampp\htdocs\extensions\TemplateData\includes\Special\SpecialTemplateDiscovery.php:10 Stack trace: #0 {main} thrown in C:\xampp\htdocs\extensions\TemplateData\includes\Special\SpecialTemplateDiscovery.php on line 10