<van-toast id="van-toast" />

模拟器没问题，真机一直报 toTempFilePath:fail invalid viewid？ 业务是当前页面 需要点击进入别的页面填写内容，然后带参数返回 然后画海报保存 当前页面画直接画海报没问题，返回一直报 toTempFilePath:fail invalid viewid？ onReady() {     this.drawImage()   }, drawImage: function () {     let that = this     const query = wx.createSelectorQuery()     query.select('#myCanvas')       .fields({         node: true,         size: true       })       .exec((res) => {         const canvas = res[0].node         const canvasRes = res[0]         const ctx = canvas.getContext('2d')         const dpr = wx.getSystemInfoSync().pixelRatio         that.setData({           canvas ,           canvasRes,           ctx,           dpr         })       })   },   drawImageDetail() {     try {       let userInfo = this.data.userInfo       let canvasRes = this.data.canvasRes       let canvas = this.data.canvas       let dpr = this.data.dpr       let ctx = this.data.ctx       let that = this       canvas.width = canvasRes.width * dpr       canvas.height = canvasRes.height * dpr       ctx.scale(dpr, dpr)       ctx.fillStyle = 'white'       ctx.fillRect(0, 0, canvas.width, canvas.height)      ctx.font = '14px DINCondensed-Bold'       ctx.fillStyle = '#BEC5CC'       ctx.fillText(`生成海报`, 0, 0);        setTimeout(() => {                         wx.canvasToTempFilePath({               canvas: canvas,               success(res) {                 console.log(res.tempFilePath)                                                },               fail(res){                 console.log(res)               }             })           }, 400)     } catch (error) {       console.log(error)     }   },

[图片] 上图是iphone 11,微信版本8.0.6。尝试使用iPhone 5,微信版本7.X.X的，是可以正常生成图片的。

如题