Unable to have files [] in jsb3 generated

[ttback]

I tried to use sencha create jsb on some of my project but the files[] are always empty like below:

 {    "projectName": "Project Name",
    "licenseText": "Copyright(c) 2011 Company Name",
    "builds": [
        {
            "name": "All Classes",
            "target": "all-classes.js",
            "options": {
                "debug": true
            },
            "files": []
        },
        {
            "name": "Application - Production",
            "target": "app-all.js",
            "compress": true,
            "files": [
                {
                    "path": "",
                    "name": "all-classes.js"
                },
                {
                    "path": "",
                    "name": "app.js"
                }
            ]
        }
    ],
    "resources": []
}

My project looks fine in Browser and I had Ext.Required specified, but files[] always empty.
Is there any prerequisite to use the Sencha SDK for build?

Does it require MVC structure to work?

I attached the source I have for now. If you can replicate the problem on your end, it would probably be easier to answer what's wrong.
https://github.com/ttback/Ext4Poc

[mitchellsimoens]

It seems to work bets in MVC but isn't required. It should evaluate the Ext.require and the different require properties and follow those classes.

[ttback]

It seems to work bets in MVC but isn't required. It should evaluate the Ext.require and the different require properties and follow those classes.

I had only one require on top of main.js (basically the app.js in examples).
Like Ext.require(['Ext.Viewport','Ext.data.TreeStore']);

I updated later to have the require include grid and tree as well. But there is no difference in output jsb3 file no matter how I tweak the require. Do I have to do something more than this?