我这个底部导航不显示是怎么回事？

"pages": [
    "pages/index/index",
    "pages/member/index_v2/index_v2",
    "pages/member/home/index",
    "pages/login/login",
    "pages/category_v2/category_v2",
    "pages/buy/cart_v2/cart_v2",
    "pages/zhibo_list/zhibo_list",
    "pages/course/CourseIndex/CourseIndex"
    
  ],
  "window": {
    "backgroundTextStyle": "dark",
    "backgroundColor": "#f8f8f8",
    "navigationBarTitleText": "",
    "navigationBarBackgroundColor": "#fff",
    "navigationBarTextStyle": "black"
  },
  "tabBar": {
    "custom": false,
    "color": "#888",
    "selectedColor": "#414141",
    "borderStyle": "black",
    "backgroundColor": "#ffffff",
    "list": [
      {
        "pagePath": "pages/index/index",
        "iconPath": "image/2222.jpg",
        "selectedIconPath": "image/1111.jpg",
        "text": "首页"
      },
      {
        "pagePath": "pages/category_v2/category_v2",
        "iconPath": "image/3333.png",
        "selectedIconPath": "image/4444.png",
        "text": "商城"
      },
      {
        "pagePath": "pages/member/index_v2/index_v2",
        "iconPath": "image/5555.png",
        "selectedIconPath": "image/6666.png",
        "text": "我的"
      }
    ]
  },