1.確認你的 app.json下的"pages"對象中 第一個page是你的 tabbar中list集合的第一個page
如：
"pages":[
"pages/shouye/shouye",
"pages/mainpage/mainpage",
"pages/fund/fund",
"pages/zichan/zichan",
"pages/mine/mine"
],
=======================================
"list": [{
"pagePath": "pages/shouye/shouye",
"text": "首頁",
"iconPath": "pages/image/home_off.png",
"selectedIconPath": "pages/image/home_on.png"
},...]
2.確認你的tabbar設置了這幾個不可以少的屬性
"pagePath": "pages/shouye/shouye",
"text": "首頁",
"iconPath": "pages/image/home_off.png",
"selectedIconPath": "pages/image/home_on.png"
(我這里image建在pages文件夾下面，路徑可能和你們不一樣 ps:路徑必須要對)
3.確認你的list集合長度不小於2且不大於5 (官方要求的)