Fatal error: Uncaught Error: Class 'Smarty_Resource' not found in C:\Project\WWW\SanGuo\ThinkPHP\Library\Vendor\Smarty\sysplugins\smarty_resource_custom.php:18 Stack trace: #0 {main} thrown in C:\Project\WWW\SanGuo\ThinkPHP\Library\Vendor\Smarty\sysplugins\smarty_resource_custom.php on line 18