解析错误：意外的令牌Spotify API

Question

我是使用React的新手，正在尝试调用Spotify API以获取播放列表。

在运行代码时，我只会不断遇到解析错误，但我不太清楚为什么。我在下面评论的那条线上找到了它。谁能帮忙，这是下面的代码：

import React, { Component } from 'react';
import './App.css';
import SpotifyWebApi from 'spotify-web-api-js';
const spotifyApi = new SpotifyWebApi();

class App extends Component {
  constructor(){
    super();
    const params = this.getHashParams();
    console.log(params)
    const token = params.access_token;
    if (token) {
      spotifyApi.setAccessToken(token);
    }
    this.state = {
      loggedIn: token ? true : false,
      nowPlaying: { name: 'Not Checked', albumArt: '' }
    }
  }
  getHashParams() {
    var hashParams = {};
    var e, r = /([^&;=]+)=?([^&;]*)/g,
        q = window.location.hash.substring(1);
    e = r.exec(q)
    while (e) {
       hashParams[e[1]] = decodeURIComponent(e[2]);
       e = r.exec(q);
    }
    return hashParams;
  }

  getUserPlaylists(){
    spotifyApi.getUserPlaylists('amy.greene')
    .then(function(data) {
      console.log('Retrieved playlists', data.body);
    },function(err) {
    console.log('Something went wrong!', err);
      });
  }); // <----------- Error points here
  // **************************************************

  render() {
    return (
      <div className="App">
        <a href='http://localhost:8888' > Login to Spotify </a>

        <div>
          { this.state.loggedIn &&
            <button onClick={() => this.getUserPlaylists()}>
              Your Playlists
            </button>
          }
        </div>
      </div>
    );
  }
}
export default App;