HarmonyOS Worker使用问题

/**
 *  这几种路径都无法找到worker文件，应该怎样传递路径？
 */
// private workerInstance1 = new worker.ThreadWorker("../../pdfview/RenderWorker.ets")
// private workerInstance2 = new worker.ThreadWorker("ets/pdfview/RenderWorker.ets")
// private workerInstance3 = new worker.ThreadWorker("entry/ets/pdfview/RenderWorker.ets")
private workerInstance = new worker.ThreadWorker("@entry/ets/pdfview/RenderWorker.ets")

private onMessage() {
  Log.d('Main_Thread', `try on message.`)
  if (!this.workerInstance.onmessage) {
    Log.d('Main_Thread', 'real on message')
    this.workerInstance.onmessage = (e: MessageEvents) => {
      Log.d('Main_Thread', `message: ${e.data}`)
    }
  }
}

报错如下：

[ecmascript] When checking if module is in abc file, Cannot find module 'com.orion.notein.hm/entry/ets/pdfview/RenderWorker'
[(worker.cpp:1194)(StartExecuteInThread)] worker:: the file path is invaild, can't find the file : entry/ets/pdfview/RenderWorker.ets.