[Nextjs] TypeError: unsupported file type: undefined (file: undefined)

next.config.js 내용 추가

const withImages = require("next-images");

module.exports = withImages({
  images: {
    disableStaticImages: true,
  },
});

require로 사용 가능

<img
    src={require('images/header/img-header-left-ad.jpg')}
	alt="광고이미지"
/>

참고 하세요..
https://velog.io/@leeeunbin/TypeScript-Next.js-static-image-%EB%B6%88%EB%9F%AC%EC%98%A4%EA%B8%B0