HarmonyOS 鸿蒙Next关于录音api的问题

HarmonyOS 鸿蒙Next关于录音api的问题

为什么我使用文档的搜到的关于录音的接口进行测试，总是出现系统错误 使用的模块：import audio from ‘@ohos.multimedia.audio’; 工程权限 ohos.permission.MICROPHONE已加 使用代码是文档上的使用样例未经改动：

Button('开启录音').onClick((event: ClickEvent) => {
  try {

    let audioStreamInfo: audio.AudioStreamInfo = {
      samplingRate: audio.AudioSamplingRate.SAMPLE_RATE_44100,
      channels: audio.AudioChannel.CHANNEL_1,
      sampleFormat: audio.AudioSampleFormat.SAMPLE_FORMAT_S16LE,
      encodingType: audio.AudioEncodingType.ENCODING_TYPE_RAW
    }

    let audioCapturerInfo: audio.AudioCapturerInfo = {
      source: audio.SourceType.SOURCE_TYPE_MIC,
      capturerFlags: 0
    }

    let audioCapturerOptions: audio.AudioCapturerOptions = {
      streamInfo: audioStreamInfo,
      capturerInfo: audioCapturerInfo
    }

    audio.createAudioCapturer(audioCapturerOptions, (err, data) => {
      if (err) {
        console.error(`AudioCapturer Created : Error: ${err}`);
      } else {
        console.info('AudioCapturer Created : Success : SUCCESS');
        let audioCapturer = data;
      }
    });

  } catch (e) {

    console.log('')
  }

})
 

一直返回错误：ERROR_SYSTEM 6800301,这是哪里还需要什么配置吗？