Fatal error: Uncaught Error: Class 'Civi\Setup' not found in C:\wwwroot\sanguo_22fqiz\web\civicrm\setup\res\installer.tpl.php:1 Stack trace: #0 {main} thrown in C:\wwwroot\sanguo_22fqiz\web\civicrm\setup\res\installer.tpl.php on line 1