我对 HoloLens 开发非常陌生。因此，如果这是一个业余问题，请原谅。我目前正在将 HoloLens 的手势检测传输到外部 MQTT 代理。
我的用例是，当我检测到手敲（来自 HoloLens）时，我需要向 MQTT 代理中的订阅主题发送（发布）一条消息。
我在 GitHub ( https://github.com/gpvigano/M2MqttUnity ) 上找到了这个示例。这会发布消息但不接收任何消息。我收到以下错误。
Connected to iot.eclipse.org:1883...
(Filename: C:\buildslave\unity\build\artifacts/generated/Metro/runtime/DebugBindings.gen.cpp Line: 51)
Test message published
(Filename: C:\buildslave\unity\build\artifacts/generated/Metro/runtime/DebugBindings.gen.cpp Line: 51)
'M2MqttUnity.exe' (CoreCLR: CoreCLR_UWP_Domain): Loaded 'C:\Data\Users\DefaultAccount\AppData\Local\DevelopmentFiles\M2MqttUnityVS.Release_x86.per287\System.Diagnostics.StackTrace.dll'. Cannot find or open the PDB file.
Exception thrown: 'System.InvalidOperationException' in Assembly-CSharp.dll
Exception thrown: 'uPLibrary.Networking.M2Mqtt.Exceptions.MqttCommunicationException' in Assembly-CSharp.dll
Exception thrown: 'System.AggregateException' in System.Private.CoreLib.ni.dll
The thread 0x13b8 has exited with code 0 (0x0).
The thread 0xfdc has exited with code 0 (0x0).
The thread 0x700 has exited with code 0 (0x0).
The thread 0x179c has exited with code 0 (0x0).
Exception thrown: 'uPLibrary.Networking.M2Mqtt.Exceptions.MqttCommunicationException' in Assembly-CSharp.dll
Failed to connect to iot.eclipse.org:1883:
uPLibrary.Networking.M2Mqtt.Exceptions.MqttCommunicationException: Exception of type 'uPLibrary.Networking.M2Mqtt.Exceptions.MqttCommunicationException' was thrown.
at uPLibrary.Networking.M2Mqtt.MqttClient.SendReceive(Byte[] msgBytes, Int32 timeout)
at uPLibrary.Networking.M2Mqtt.MqttClient.SendReceive(MqttMsgBase msg, Int32 timeout)
at uPLibrary.Networking.M2Mqtt.MqttClient.Connect(String clientId, String username, String password, Boolean willRetain, Byte willQosLevel, Boolean willFlag, String willTopic, String willMessage, Boolean cleanSession, UInt16 keepAlivePeriod)
at M2MqttUnity.M2MqttUnityClient.d__38.MoveNext()
(Filename: C:\buildslave\unity\build\artifacts/generated/Metro/runtime/DebugBindings.gen.cpp Line: 51)
有人在存储库之前尝试过这个，或者知道这个错误是什么吗？