Why can't I render this inside nextjs? about react-katex HOT 3 OPEN

import 'katex/dist/katex.min.css';
import dynamic from 'next/dynamic';
import { InlineMath, BlockMath } from 'react-katex';
export default function TestPage() {
    return (
        <div>
            <InlineMath math="\\int_0^\\infty x^2 dx" />
        </div>
    );
}

<InlineMath math="\int_0^\infty x^2 dx"/>