Fatal error: Uncaught Error: Interface "think\contract\TemplateHandlerInterface" not found in C:\xampp\htdocs\HeTongSite\vendor\topthink\framework\src\think\view\driver\Php.php:23 Stack trace: #0 {main} thrown in C:\xampp\htdocs\HeTongSite\vendor\topthink\framework\src\think\view\driver\Php.php on line 23