ExtJS：未捕获的TypeError：无法读取未定义的属性“作用域”

Question

我已经通过此示例创建了一个面板，并且在tools config下有2个项目。 这两个项目都有自己的功能，该功能通过ViewController绑定。 refresh项目的功能运行良好，但gear项目的功能在下面给出了此错误；

Uncaught TypeError: Cannot read property 'scope' of undefined
    at constructor.addListener (Observable.js?_dc=1516015518102:1135)
    at constructor (Observable.js?_dc=1516015518102:403)
    at constructor.beforeInitConfig (Component.js?_dc=1516015518101:2261)
    at Ext.Configurator.configure (Configurator.js?_dc=1516015518102:558)
    at constructor.initConfig (Base.js?_dc=1516015518101:1554)
    at constructor (Component.js?_dc=1516015518101:2137)
    at new constructor (Class.js?_dc=1516015518101:42)
    at Object.widget (ClassManager.js?_dc=1516015518101:1638)
    at constructor.create (ComponentManager.js?_dc=1516015518102:76)
    at constructor.lookupComponent (Container.js?_dc=1516015518101:1564)

我已经将视图类从app文件夹移到了classic文件夹，但是ViewController类仍保留在app文件夹中，所以我猜想this符号会引起错误。 我应该如何在ViewController中声明它？

weatherWindow: function () {
        var win = this.lookupReference('weatherWindow');

        if (!win) {
            win = new MyApp.view.weather.SettingsWindow();
            this.getView().add(win);
        }

        win.show();
    },

---

更新我已经为视图创建了一个ViewController ，但是仍然给出scope错误！

Ext.define('MyApp.view.dash.WeatherView', {
    extend: 'Ext.panel.Panel',
    xtype: 'weatherview',

    requires: [
        'MyApp.view.dash.WeatherViewVC',

    ],

    controller: 'weatherView',

//and..
Ext.define('MyApp.view.dash.WeatherViewVC', {
    extend: 'Ext.app.ViewController',
    alias: 'controller.weatherView',

    requires: [],

    weatherWindow: function () {
        debugger;

        var win = this.lookupReference('settingsWindow');

        if (!win) {
            win = new MyApp.view.weather.SettingsWindow();
            this.getView().add(win);
        }

        win.show();
    },

Answer 1

我已找到此错误的解决方案。 在window类中创建一个函数并返回它；

getSettingsItems: function () {
    var me = this;

    var settingsItems = [
        // whole items listed here!
    ];

    return settingsItems;
},