控制器不存在:app\index\admin\Plugin

        try {            $instance = Loader::controller(                $controller,                $config['url_controller_layer'],                $config['controller_suffix'],                $config['empty_controller']            );        } catch (ClassNotFoundException $e) {            throw new HttpException(404, 'controller not exists:' . $e->getClass());        }        // 获取当前操作名        $action = $actionName . $config['action_suffix'];        $vars = [];        if (is_callable([$instance, $action])) {            // 执行操作方法            $call = [$instance, $action];

Call Stack

1. in App.php line 584

2. at App::module(['index', 'plugin', 'execute'], ['app_host' => '', 'app_debug' => true, 'app_trace' => false, ...], false) in App.php line 461

3. at App::exec(['type' => 'module', 'module' => ['index', 'plugin', 'execute'], 'convert' => false], ['app_host' => '', 'app_debug' => true, 'app_trace' => false, ...]) in App.php line 139

4. at App::run() in start.php line 19

5. at require('C:\phpstudy_pro\WWW\...') in admin.php line 23