Uncaught TypeError: Cannot set property 'wrapper' of null Do you know why?

Question

Uncaught TypeError: Cannot set property 'wrapper' of null

<template>
<div class="wrapper" ref="wrapper">
  <div class="content"></div>
  <slot></slot>
</div>  
</template>


  mounted(){
    this.scroll=new BScroll(this.$refs.wrapper,{

    })
  }

Answer 1

可能是this的指向问题，你试一下：

let that=this;
this.scroll=new BScroll(that.$refs.wrapper,{

})