import React from "react" ; import { Link } from "gatsby" ; import { Layout } from "../components/layout" ; import { SEO } from "../components/seo" ; const NotFoundPage = ( ) => ( < Layout > < SEO title = "404: Not found" / > < h1 > Oops ! 404 < /h1> < h3 > You just hit a route that doesn & # 39 ; t exist . < /h3> < Link to = "/" > Go Home < /Link> < /Layout>); export default NotFoundPage ;