Unexpected Syntax Error

I am trying to tokenize a simple program but I get syntax error. Can you tell me why is that?

/**
 * Copyright (c) 2015-present, Facebook, Inc.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 */

import React, { Component } from 'react';
import PropTypes from 'prop-types';
import load from 'absoluteLoad';

export default class extends Component {
  static propTypes = {
    onReady: PropTypes.func.isRequired,
  };

  constructor(props) {
    super(props);
    this.state = { users: [] };
  }

  async componentDidMount() {
    const users = load();
    this.setState({ users });
  }

  componentDidUpdate() {
    this.props.onReady();
  }

  render() {
    return (
      <div id="feature-node-path">
        {this.state.users.map(user => (
          <div key={user.id}>{user.name}</div>
        ))}
      </div>
    );
  }
}

No repository file or test is identified in the report. Start by reproducing tokenization of the supplied JavaScript and React snippet, then determine which syntax construct triggers the error; done means explaining the cause and identifying the supported way to tokenize it.