十月 CMS:无法创建表单小部件

我是 10 月 CMS 的新手，正在学习创建表单小部件.但我收到以下错误:

I'm new to October CMS and learning to create a Form Widget. But I'm getting the following error :

The partial '_field_actorbox.htm' is not found.
/opt/lampp/htdocs/octobermovies/modules/system/traits/ViewMaker.php line 65

我的小部件文件夹名称是formwidgets"我在partials文件夹中的partials文件名是'_widget.htm'我的表单小部件的内容 > Actorbox.php

My widget folder name is 'formwidgets' My partials file name inside partials folder is '_widget.htm' Content of my formwidgets > Actorbox.php

namespace Watchlearn\Movies\FormWidgets;

use Backend\Classes\FormWidgetBase;
use Config;

class ActorBox extends FormWidgetBase
{
    public function widgetDetails()
    {
        return [
            'name' => 'Actorbox',
            'description' => 'Field for adding actors'
        ];
    }

    public function render(){
        return $this->makePartial('widget');
    }

    public function loadAssets()
    {
        $this->addCss('css/select2.css');
        $this->addJs('js/select2.js');
    }
}

我在 plugin.php 中注册小部件的代码

My code to register the widget in plugin.php

public function registerFormWidgets()
    {
        return [
            'Watchlearn\Movies\FormWidgets\ActorBox' => [
                'label' => 'ActorBox Field',
                'code' => 'actorbox'
            ]
        ];
    }

我也尝试查找并查看文档，但找不到任何解决方案.

I tried to find and looked into the documentation also but could not find any solution for this.