Fatal error: Uncaught Error: Undefined constant "think\VENDOR_PATH" in /home/wwwroot/ctylfw.com/thinkphp/library/think/Loader.php:288 Stack trace: #0 /home/wwwroot/ctylfw.com/thinkphp/base.php(17): think\Loader::register() #1 /home/wwwroot/ctylfw.com/public/index.php(16): require('...') #2 {main} thrown in /home/wwwroot/ctylfw.com/thinkphp/library/think/Loader.php on line 288