在调试基础库为3.15.1的情况下，页面中有且仅有一个camera组件的情况下报“[渲染层错误] [Component] <camera>: 一个页面只能插入一个”？

代码片段：https://developers.weixin.qq.com/s/bs9LmGma8Z8G

报错截图如下：

脚本代码如下：

const app = getApp()


Page({
  data: {
    scanCode:"",
    scanType:"",
    scanTimestamp:0
  },
  onLoad() {
    console.log('代码片段是一种迷你、可分享的小程序或小游戏项目，可用于分享小程序和小游戏的开发经验、展示组件和 API 的使用、复现开发问题和 Bug 等。可点击以下链接查看代码片段的详细文档：')
    console.log('https://developers.weixin.qq.com/miniprogram/dev/devtools/minicode.html')
  },
  onCameraError(e){
    console.log(e)
  },
  onCameraScanCode(e){
    console.log(e)
  }
})

页面代码如下：

<!--index.wxml-->
<navigation-bar title="Weixin" back="{{false}}" color="black" background="#FFF"></navigation-bar>
<scroll-view class="scrollarea" scroll-y type="list">
  <view class="container">
    <view style="width: 100%;">
        <camera 
            device-position="back" 
            mode="scanCode"
            flash="off" 
            binderror="onCameraError" 
            bindscancode="onCameraScanCode"
            style="width: 100%; height: 300px;">
        </camera>
        <view style="text-align: center;">扫码结果：{{scanCode}}</view>
        <view style="text-align: center;">码类型：{{scanType}}</view>
        <view style="text-align: center;">时间：{{scanTimestamp}}</view>
    </view>
    <view>1</view>
    <view>1</view>
    <view>1</view>
    <view>1</view>
    <view>1</view>
    <view>1</view>
    <view>1</view>
    <view>1</view>
    <view>1</view>
    <view>1</view>
    <view>1</view>
    <view>1</view>
    <view>1</view>
    <view>1</view>
    <view>1</view>
    <view>1</view>
    <view>1</view>
    <view>1</view>
    <view>1</view>
    <view>1</view>
    <view>1</view>
    <view>1</view>
    <view>1</view>
    <view>1</view>
    <view>1</view>
    <view>1</view>
    <view>1</view>
    <view>1</view>
    <view>1</view>
    <view>1</view>
    <view>1</view>
    <view>1</view>
    <view>1</view>
    <view>1</view>
    <view>1</view>
    <view>1</view>
    <view>1</view>
    <view>1</view>
    <view>1</view>
    <view>1</view>
    <view>1</view>
    <view>1</view>
    <view>1</view>
    <view>1</view>
    <view>1</view>
    <view>1</view>
    <view>1</view>
    <view>1</view>
    <view>1</view>
    <view>1</view>
    <view>1</view>
    <view>1</view>
    <view>1</view>
    <view>1</view>
    <view>1</view>
    <view>1</view>
    <view>1</view>
    <view>1</view>
    <view>1</view>
    <view>1</view>
    <view>1</view>
    <view>1</view>
    <view>1</view>
    <view>1</view>
    <view>1</view>
    <view>1</view>
    <view>1</view>
    <view>1</view>
    <view>1</view>
    <view>1</view>
    <view>1</view>
    <view>1</view>
    <view>1</view>
    <view>1</view>
    <view>1</view>
    <view>1</view>
    <view>1</view>
  </view>
</scroll-view>