Fatal error: Uncaught Error: Class 'think\Error' not found in /www/wwwroots/wwwroot/51dongshi/thinkphp/base.php:20 Stack trace: #0 /www/wwwroots/wwwroot/51dongshi/mobile/index.php(20): require() #1 {main} thrown in /www/wwwroots/wwwroot/51dongshi/thinkphp/base.php on line 20