React.js gives Unexpected token

I am new to React.JS. I am trying a very simple layout but It gives an error to the parantehsis before "this" keyword. Why does it give the error? Any help would be appreciated.

import React, { Component } from 'react';
import { Col, Grid, Row } from 'react-bootstrap';
import { NavMenu } from './NavMenu';
import Header from './Header'
import Footer from './Footer'

export class Layout extends Component {
  displayName = Layout.name

  render() {
      return (
          <Header />
            {this.props.children}
          <Footer />
      );
  }
}