我是在页面中操作的    <!--pages/iospage/user/user.wxml--> <view>  <view class="canvas">hemlo </view> </view> // pages/iospage/user/user.js    Page({ onReady() {             wx.createSelectorQuery().select('.canvas').node(function(res){             console.log(res.node) // 节点对应的 Canvas 实例。 //undefined ？？？？？             }).exec()         }, })

Cannot read property \'nodeId\' of undefined TypeError: Cannot read property \'nodeId\' of undefined at Image.set [as src] (https://lib/WASubContext.js:2:667557) at mp.set src [as src] (https://lib/WASubContext.js:2:739954) at Object.r [as _createImageData] (https://miniprogram_npm/lottie-miniprogram/index.js:9:53749) at Object.i [as loadAssets] (https://miniprogram_npm/lottie-miniprogram/index.js:9:53918) at AnimationItem.preloadImages (https://miniprogram_npm/lottie-miniprogram/index.js:9:143984) at AnimationItem.configAnimation (https://miniprogram_npm/lottie-miniprogram/index.js:9:144519) .............. 报错内容如上，这个是只有安卓机报错，比较多，还有一种是下面的，只有ios报错。 undefined is not an object (evaluating \'t.nodeId\') set@https://lib/WASubContext.js:2:667556 src@https://lib/WASubContext.js:2:739950 r@https://usr//app-service.js:9290:72032 i@https://usr//app-service.js:9290:72218 ....... 查看错误定位到 lottie-miniprogram/index.js的如图位置 [图片] 使用代码如下，是完全按文档写。 wx.createSelectorQuery().in(this).selectAll('#welfare_lottie').node(res => {  const canvas = res[0].node  const context = canvas.getContext('2d')  canvas.width = 144  canvas.height = 144  lottie.setup(canvas)  this.ani = lottie.loadAnimation({   loop: true,   autoplay: true,   path: 'https://img.picka.com.cn/mini-program/json/lottie.json',   rendererSettings: {     context,   },  })  this.inited = true }).exec()