类型错误：无法读取 null

Question

我正在尝试在我的 vue 前端应用程序中使用 wavesurfer.js。从后端获取到音频文件的链接后，出现此错误：

wavesurfer.js?8896:5179 Uncaught (in promise) TypeError: Cannot read property 'isPaused' of null
    at WaveSurfer.empty (wavesurfer.js?8896:5179)
    at WaveSurfer.load (wavesurfer.js?8896:4852)
    at _callee$ (GameScreen.vue?dcce:42)
    at tryCatch (runtime.js?96cf:63)
    at Generator.invoke [as _invoke] (runtime.js?96cf:293)
    at Generator.eval [as next] (runtime.js?96cf:118)
    at asyncGeneratorStep (asyncToGenerator.js?1da1:3)
    at _next (asyncToGenerator.js?1da1:25)
    at eval (asyncToGenerator.js?1da1:32)
    at new Promise (<anonymous>)

这是我在 vue 组件中使用的代码

<script>
import axios from 'axios';
import wavesurfer from 'wavesurfer.js';

export default {
  name: 'GameScreen',
  data(){
    return {
      isLoading: true,
    }
  },
  mounted(){
    this.initAudio();
  },
  methods: {
    initAudio(){
      axios.get('http://localhost:6060/track').then( async (response) => {
        console.log(response.data);
        
        const waveform = new wavesurfer({
          container: this.$refs.wave,
          color: 'violet',
          backend: 'MediaElement'
        });
        
        await waveform.load(response.data);

        await waveform.on('ready', () => {
          this.isLoading = false;
          //waveform.play();
        });

        console.log(waveform);
      });
    }
  }
}
</script>

代码中是否有任何错误或我可以做些什么来解决这个问题？

更新

问题已结束，我想发布解决方案但不可能。无论如何，问题在于我在实例化库时犯的错字。我忘记调用 create 方法。要正确实例化 WaveSurfer，语法是 new WaveSurfer.create({...}) 而不仅仅是 new WaveSurfer({})

谢谢大家的帮助。