We want to receive service bus messages from our azure service bus using ServiceBusTrigger, locally in Visual Studio 2022. For Authentication, we use Managed Identity.

Context

• .NET Core 3.1
• An AD-user with valid credentials which is logged in, in Visual Studio 2022
• Installed Nuget-Packages:

Microsoft.Azure.Functions.Extensions (1.1.0),
Microsoft.Azure.WebJobs.Extensions.ServiceBus (5.15.1),
Microsoft.NET.sdk.Functions (4.1.1)

class Function1.cs:

[FunctionName("HandleMessage")]
public static void Run([ServiceBusTrigger("%ServiceBusQueueName%", Connection = ServiceBusNames.ServiceBusConnectionString)] ServiceBusReceivedMessage queueMessage)
{
    var foo = queueMessage;
}

local.settings.json:

{
  "IsEncrypted": false,
  "Values": {
    "AzureWebJobsStorage": "UseDevelopmentStorage=true",
    "FUNCTIONS_WORKER_RUNTIME": "dotnet",
    "ServiceBusQueueName": "myQueue-myName",
    "ServiceBusConnectionString__fullyQualifiedNamespace": "sb-global-dev.servicebus.windows.net",
  }
}

It is important to add the logging to the host.json to get the error message:

{
    "version": "2.0",
    "logging": {
      "LogLevel": {
        "Default": "Information",
        "System": "Warning",
        "Microsoft": "Warning",
        "AP": "Information",
        "Mwp": "Information"
      },
      "ApplicationInsights": {
        "LogLevel": {
          "Default": "Information",
          "System": "Warning",
          "Microsoft": "Warning",
          "AP": "Information",
          "MWP": "Information"
        }
      }
  }
}

Problem

When we start the function in Visual Studio 2022 via debug mode, we get the following errors in our console output:

Note

Despite the error messages, the ServiceBusTrigger fetches the message from the queue successfully which is confusing.

How can we solve the errors?