使用 useExtendedLib 引入 weui 后，手机端不能预览。
- 系统：IOS 13.5.1
- 已尝试杀死微信进程
"useExtendedLib": {
"weui": true
},
"usingComponents": {
"mp-toptips": "weui-miniprogram/toptips/toptips",
"mp-cells": "weui-miniprogram/cells/cells",
"mp-cell": "weui-miniprogram/cell/cell",
"mp-checkbox": "weui-miniprogram/checkbox/checkbox",
"mp-checkbox-group": "weui-miniprogram/checkbox-group/checkbox-group",
"mp-form": "weui-miniprogram/form/form"
},
你好，不能预览具体是什么表现？有报错信息吗？