Sencha Touch - 构建包后出错？

Question

在我在命令行中构建包之后：

sencha app build package

当我把网址 localhost/myapp/build/myapp/package

没有加载页面并且有错误信息：

Uncaught TypeError: Cannot call method 'substring' of undefined **app.js** 

这是我的 app.js：

Ext.Loader.setPath({
    'Ext': 'touch/src'
});
//</debug>

Ext.application({
    name: 'Catalog',
    controllers: [
        'Main','Navigation','searchCon'
    ],
    requires: [
        'Ext.MessageBox'
    ],

    views: [
        'Main' , 'Home' , 'Navigation' , 'Viewport' , 'showSearchCategory' , 'SearchQ'
    ],

    icon: {
        '57': 'resources/icons/Icon.png',
        '72': 'resources/icons/Icon~ipad.png',
        '114': 'resources/icons/Icon@2x.png',
        '144': 'resources/icons/Icon~ipad@2x.png'
    },

    isIconPrecomposed: true,

    startupImage: {
        '320x460': 'resources/startup/320x460.jpg',
        '640x920': 'resources/startup/640x920.png',
        '768x1004': 'resources/startup/768x1004.png',
        '748x1024': 'resources/startup/748x1024.png',
        '1536x2008': 'resources/startup/1536x2008.png',
        '1496x2048': 'resources/startup/1496x2048.png'
    },

    launch: function() {
        // Destroy the #appLoadingIndicator element
        Ext.fly('appLoadingIndicator').destroy();

        // Initialize the main view
        Ext.Viewport.add(Ext.create('Catalog.view.Main'));
    },

    onUpdated: function() {
        Ext.Msg.confirm(
            "Application Update",
            "This application has just successfully been updated to the latest version. Reload now?",
            function(buttonId) {
                if (buttonId === 'yes') {
                    window.location.reload();
                }
            }
        );
    }
});

哪里出错了？

我该如何解决我的问题

Answer 1

习惯这个错误，你会发现很多使用 Sencha。它通常与解析有关。查找不合适的字符，例如列表末尾的逗号，例如 {a,b,c,}。

可能的重复：

Uncaught-TypeError-Cannot-call-method-substring-of-undefined-sencha-touch-all.js

Cannot call method 'substring' of undefined app.js:1 sencha nested

另见：

http://www.sencha.com/forum/showthread.php?263159-Uncaught-TypeError-Cannot-call-method-substring-of-undefined-sencha-touch-all.js-3