我正在嘗試從 BLE 設(shè)備讀取傳感器數(shù)據(jù)，但對(duì) Unity / C# / HoloLens / UWP 來(lái)說(shuō)是全新的。我使用的 UWP 命名空間：#if NETFX_COREusing System;using Windows.Devices.Bluetooth.Advertisement;using Windows.Devices.Bluetooth;#endif這是 BluetoothLEAdvertisementWatcher.Received 的事件處理程序：#if NETFX_COREprivate async void Watcher_Received(BluetoothLEAdvertisementWatcher sender, BluetoothLEAdvertisementReceivedEventArgs args){    Debug.Log("=Received Advertisement=");    ulong bluetoothAddress = args.BluetoothAddress;    Debug.Log("  BT_ADDR: " + bluetoothAddress);    Debug.Log("  Local name: " + args.Advertisement.LocalName);    Debug.Log("  advertisement type: " + args.AdvertisementType.ToString());    // Throws 'System.IO.FileNotFoundException' in System.Private.CoreLib.ni.dll    BluetoothLEDevice device = await BluetoothLEDevice.FromBluetoothAddressAsync(bluetoothAddress);}#endif我在堆棧跟蹤中看到的所有內(nèi)容都是：拋出異常：System.Private.CoreLib.ni.dll 中的“System.IO.FileNotFoundException”系統(tǒng)找不到指定的文件。（來(lái)自 HRESULT 的異常：0x80070002）我不知道如何進(jìn)一步調(diào)試這個(gè)，或者一般有什么問(wèn)題。