Suppress Warning "cannot find value named '{0}' in local.settings.json

[qualitas-software]

I exclude local.settings.json from checkin as developers can configure some aspects separately as needed.

I have a storage connection string for a queue trigger which I default (ie- set as a convention) in Startup. When deployed, this will be filled from a keyvault, but in dev the default is UseDevelopmentStorage=true.

This all works, but I get an unwanted warning telling me I must set the value in local.settings.json, as follows:

Function [MyListener]: cannot find the value named 'MyStorage:ConnectionString' in local.settings.json that matches 'connection' property set of 'QueueTrigger'

I would like to add a code suppression for this warning. Is this possible ?

[fowl2]

This warning appears to be generated here:

azure-functions-vs-build-sdk/src/Microsoft.NET.Sdk.Functions.Generator/FunctionJsonConverter.cs

Line 261 in 32ebc25

_logger.LogWarning($"Function [{functionName}]: cannot find value named '{appSettingName}' in {settingsFileName} that matches '{token.Key}' property set on '{binding["type"]?.ToString()}'");

It also appears erroneously when using the "__" syntax, eg. with service bus with managed identity "connectionName__fullyQualifiedNamespace".

---

As a workaround, it seems that replacing local.settings.json with properties\launchSettings.json works, eg:

{
  "profiles": {
    "project.name": {
      "commandName": "Project",
      "commandLineArgs": "--csharp",
      "environmentVariables": {
        "AzureWebJobsStorage": "UseDevelopmentStorage=true",
        "FUNCTIONS_WORKER_RUNTIME": "dotnet",
        "connectionName__fullyQualifiedNamespace": "servce-bus-namespace-goes-here"
      }
    }
  }
}

[petrkoutnycz]

I'm having this issue as well, not even adding an env variable to `launchSettings' helps. Any news regarding this bug?

[jameswoodley]

Same issue here when using the __fullyQualifiedNamespace pattern.

This is at build time, so environment variables don't make a difference

[DanielRNichols]

Same issue here when using managed identities with the service bus. I had seen a previous issue raised by @petrkoutnycz Azure/azure-sdk-for-net#32840 in which it was marked as resolved, and to update to the latest version of azure core tools; however, that does not seem to be working in my case.

[petrkoutnycz]

@DanielRNichols I believe it works with the latest version of SDK, at least for me :-)

[michasacuer]

@petrkoutnycz Which SDK did you update? I go back to my function after couple of months and it stopped working (i didn't do anything in the codebase)