TypeError：无法读取null的属性'childImageSharp'

Question

<Link to={`/product/${x.node.handle}/`}>
  <Img
    fluid={x.node.images[0].localFile.childImageSharp.fluid}
    alt={x.node.handle} 
  />
</Link>

引发错误：TypeError: Cannot read property 'childImageSharp' of null