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Sparkplug B 与 C# 中的 MQTT -> MQTT 代理连接未按预期工作

[英]Sparkplug B with MQTT in C# -> MQTT Broker connection not working as expected

原文 2022-09-27 16:28:05 2 0 c#/ .net/ mqtt/ protobuf-net/ mqttnet

https://github.com/SeppPenner/SparkplugNet/blob/master/HowToUse.md https://github.com/SeppPenner/SparkplugNet/blob/master/HowToUse.md

I have explored the above link and implemented the sample solution for sparkplug B with MQTT (sender and receiver).我已经探索了上述链接并使用 MQTT（发送方和接收方）实现了火花塞 B 的示例解决方案。

But when I am executing the below methods I am getting a "Null reference" exception.但是当我执行以下方法时，我得到一个“空引用”异常。

RunVersionBApplication (Receiver) RunVersionBApplication（接收方）
RunVersionBNode (sender) RunVersionBNode（发送者）

Note :注意：

If I am passing the primary application as false code working fine.如果我将主应用程序作为错误代码传递，则工作正常。
But If I am passing the primary application property as true I am getting below exception.但是，如果我将主要应用程序属性作为 true 传递，我将遇到异常。
```
 var nodeOptions = new SparkplugNodeOptions("localhost", 1883, "client", "", "", **false**, "scada", groupId, edgeNodeId, TimeSpan.FromSeconds(130), null, null, null);
```
await node.Start(nodeOptions);等待 node.Start(nodeOptions);

System.系统。 NullReferenceException HResult=0x80004003 Message= Object reference not set to an instance of an object . NullReferenceException HResult=0x80004003 Message= Object 引用未设置为 object 的实例。 Source=SparkplugNet来源=SparkplugNet
StackTrace: at SparkplugNet.Core.Application.SparkplugApplicationBase1.< ConnectInternal >d__34.MoveNext() at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() StackTrace：在 SparkplugNet.Core.Application.SparkplugApplicationBase1.< ConnectInternal >d__34.MoveNext() 在 System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()