uniapp 微信小程序找不到canvas

[open-shuaijun]

this.$nextTick(() => {
uni.createSelectorQuery().select('#canvas').node(res => {
console.log(res)
const canvas = res.node
lottie.setup(canvas)
}).exec()
})

[seasonhuang]

报什么错？原生小程序代码能否复现