如何在repo中使用.json来读取android应用程序中的更新

Question

 { "MirrorList": ["https://www.mediafire.com/?dl_name=https://www.mediafire.com/download/lf4p87nwzonafof/"],
      "UpdateList": [
    {   
        "mod": "GT-S5360",
        "board": "smdk4210",
        "type": "kernel",
        "name": "GNU_kernel",
        "version": "20121025.071940",
        "description": "Testing",
        "branch": "S",
        "filename": "GNU.zip"
    },


  ]
}

这是我的仓库中的update_file.json和conf_update_server_url_def = http://github.com/percy-g2/updater-manifest/raw/master/update_file.json

当我点击检查更新时，它显示没有更新

请你能解释一下我做错了吗