怎么使用：插件自动加载Composer类

一加载就报错

Fatal error: require(): Failed opening required 'D:\phpstudy_pro\WWW\www.test5.com/dayrui/Fcms/Vendor/autoload.php' (include_path='.;C:\php\pear') in D:\phpstudy_pro\WWW\www.test5.com\dayrui\App\AAA\Config\Auto.php on line 3

<?php

require APPPATH.'Vendor/autoload.php';

// 自动加载识别文件

return [

    /**
     * 命名空间映射关系(类首字母必须大写)
     */
    'psr4' => [
        
        

    ],
    
    /**
     * 类名映射关系(类首字母必须大写,类名与调用名必须一致)
     */
    'classmap' => [
        
		'Simple_html_dom' => APPPATH.'Src/Simple_html_dom.php',
        
    ],


    
];


?>