报错信息

“TypeError: Cannot read property ‘children’ of undefined”

解决：找到使用nextTick的地方，因为在之前数据为空导致的，因此加一个判断在nextTick之前

if (Array.isArray(this.classList) && this.classList.length > 0) {that.$nextTick(() => {...});
}

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报这个错主要是因为子组件还没加载完成就对子组件进行赋值,推荐使用第一个 this.$nextTick( ()=> {//修改子组件的内容});//或setTimeout(() => {// ...

Error in nextTick

报错信息

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