Exception: 找不到元素。

Property key syntax error.  A property key must either be specified as a canonical property name (preferred) or be of the form {fmtid} pid.
StackTrace:
   在 Windows.Devices.Enumeration.DeviceInformation.CreateWatcher(String aqsFilter, IEnumerable`1 additionalProperties, DeviceInformationKind kind)
   在 Quicker.Modules.TextTools.Tools.BluetoothDeviceSelectorWindow.GdHakeLPM2S()
   在 Quicker.Modules.TextTools.Tools.BluetoothDeviceSelectorWindow.<OnLoaded>d__7.MoveNext()
--- 引发异常的上一位置中堆栈跟踪的末尾 ---
   在 System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   在 System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
   在 System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)