Fatal error: Uncaught Error: Class 'Illuminate\Foundation\Application' not found in /www/wwwroot/xitongbuluo/bootstrap/app.php:14 Stack trace: #0 /www/wwwroot/xitongbuluo/public/laravel.php(39): require_once() #1 {main} thrown in /www/wwwroot/xitongbuluo/bootstrap/app.php on line 14