给示例程序设置tabBar，提示无效的app.json window["tabBar"]，请求帮助？

{
  "pages": [
    "pages/index/index",
    "pages/logs/logs"
  ],
  "window": {
    "backgroundTextStyle": "light",
    "navigationBarBackgroundColor": "#fff",
    "navigationBarTitleText": "Weixin",
    "navigationBarTextStyle": "black",
    "tabBar": {
      "backgroundColor": "#ffffff",
      "color": "#000000",
      "selectedColor": "#000000",
      "list": [{
        "pagePath": "pages/index/index",
        "text": "index",
        "iconPath": "images/home.png",
        "selectedIconPath": "images/home1.png"
      },
      {
        "pagePath": "pages/logs/logs",
        "text": "logs",
        "iconPath": "images/watch.png",
        "selectedIconPath": "images/watch1.png"
      }]
    }
  },
  "style": "v2",
  "sitemapLocation": "sitemap.json"
}

使用的是最新版本的开发工具，1.05.2103200