The following tutorial column will introduce to you how to solve the problem that the ThinkPHP6 controller does not exist: app\controller\Index. I hope it will be helpful to friends who need it! 1. Check the error first.

Solution 1:

1. Reason for the error: controller Index class was not found, reasons: (1), multiple applications are not configured

(2), the namespace is incorrect

(3), the entry file runs by default The user requested no configuration

(4),

Remarks (multi-application)

: Need to install the multi-application mode extension think-multi-app

Command line: composer require topthink/ think-multi-app2. Solution:

(1). In config/app.php, change 'auto_multi_app' => flase, to true;

(2), check whether the namespace of the controller class is correct

(3), modify the entry file

<?php
// +----------------------------------------------------------------------
// | ThinkPHP [ WE CAN DO IT JUST THINK ]
// +----------------------------------------------------------------------
// | Copyright (c) 2006-2019 http://thinkphp.cn All rights reserved.
// +----------------------------------------------------------------------
// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
// +----------------------------------------------------------------------
// | Author: liu21st <liu21st@gmail.com>
// +----------------------------------------------------------------------

// [ 应用入口文件 ]
namespace think;
//定义引用css、js等文件使用的常量 &#39;SITE_URL&#39;
//define(&#39;SITE_URL&#39;,&#39;http://&#39;.$_SERVER[&#39;HTTP_HOST&#39;]);

// 加载composer的psr4命名规范
require __DIR__ . &#39;/../vendor/autoload.php&#39;;

// 执行HTTP应用并响应 创建核心类 获取执行用户所发送请求的http类
$http = (new App())->http;

// 运行用户的请求
//$response = $http->run();
// 运行用户的请求 多应用(设置admin应用)
$response = $http->name(&#39;admin&#39;)->run();
// 响应用户的请求
$response->send();
// 结束
$http->end($response);

Finally, visit

in the browser. Solution two:

1. No need to modify the index.php file

<?php
// +----------------------------------------------------------------------
// | ThinkPHP [ WE CAN DO IT JUST THINK ]
// +----------------------------------------------------------------------
// | Copyright (c) 2006-2019 http://thinkphp.cn All rights reserved.
// +----------------------------------------------------------------------
// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
// +----------------------------------------------------------------------
// | Author: liu21st <liu21st@gmail.com>
// +----------------------------------------------------------------------

// [ 应用入口文件 ]
namespace think;

// 加载composer的psr4命名规范
require __DIR__ . &#39;/../vendor/autoload.php&#39;;

// 执行HTTP应用并响应 创建核心类 获取执行用户所发送请求的http类
$http = (new App())->http;

// 运行用户的请求
$response = $http->run();
// 运行用户的请求 多应用(设置admin应用)
//$response = $http->name(&#39;admin&#39;)->run();

// 响应用户的请求
$response->send();

// 结束
$http->end($response);

2. Modify the app.php file

##Solution 3:

Full path with entry file access (eg): domain name/index.php/application name/controller name/method name

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