Azure.Storage.Queues: Value cannot be null. (Parameter 'value'). - Error during Azure function run

I'm trying to run an Azure function as a docker image but I'm getting this strange log:

Azure.Storage.Queues: Value cannot be null. (Parameter 'value').
An unhandled exception has occurred. Host is shutting down.

I'm not understanding what this "value" means. I'm sure to have configured correctly all the configuration values. Here's the local.settings.json :

{"IsEncrypted": false,
  "Values": {
    "FUNCTIONS_WORKER_RUNTIME": "node",
    "WEBSITE_NODE_DEFAULT_VERSION": "14.16.0",
    "AzureWebJobsStorage": "DefaultEndpointsProtocol=http;AccountName=devstoreaccount1;AccountKey=Eby8vdM02xNOcqFlqUwJPLlmEtlCDXJ1OUzFT50uSRZ6IFsuFq2UVErCz4I6tq/K1SZFPTOtr/KBHBeksoGMGw==;BlobEndpoint=http://azurite:10000/devstoreaccount1;QueueEndpoint=http://azurite:10001/devstoreaccount1;TableEndpoint=http://azurite:10002/devstoreaccount1;",
    "AzureWebJobsSecretStorageType": "files",
    "MY_CONNECTION_STRING": "DefaultEndpointsProtocol=http;AccountName=devstoreaccount1;AccountKey=Eby8vdM02xNOcqFlqUwJPLlmEtlCDXJ1OUzFT50uSRZ6IFsuFq2UVErCz4I6tq/K1SZFPTOtr/KBHBeksoGMGw==;BlobEndpoint=http://azurite:10000/devstoreaccount1;QueueEndpoint=http://azurite:10001/devstoreaccount1;TableEndpoint=http://azurite:10002/devstoreaccount1;"
  },
  "ConnectionStrings": {}
}

And this is the host.json file :

{
  "version": "2.0",
  "logging": {
    "logLevel": {
      "default": "Information",
      "DurableTask.AzureStorage": "Warning",
      "DurableTask.Core": "Warning",
    },
  "extensions": {
    "durableTask": {
      "hubName": "HubName",
      "localRpcEndpointEnabled": false,
      "storageProvider": {
        "connectionStringName": "MY_CONNECTION_STRING"
      },
      "tracing": {
        "traceInputsAndOutputs": false,
        "traceReplayEvents": false
      }
    }
  },
  "extensionBundle": {
    "id": "Microsoft.Azure.Functions.ExtensionBundle",
    "version": "[3.*, 4.0.0)"
  }
}

Could you help me please ?

Azure.Storage.Queues: Value cannot be null. (Parameter 'value'). An unhandled exception has occurred. Host is shutting down.

As per your configuration, the issue seems to be related to the connection string for the storage account.

To resolve this:

1. Check if "MY_CONNECTION_STRING" value of your storage account in local.settings.json is correct and be sure that the storage account you are pointing to, is not deleted.

you can follow two workarounds:

Workaround 1: Change local.setting.json as below:

• Add "UseDevelopmentStorage=true" as value of "AzureWebJobsStorage".

{
"IsEncrypted": false,
  "Values": {
    "FUNCTIONS_WORKER_RUNTIME": "node",
    "WEBSITE_NODE_DEFAULT_VERSION": "14.16.0",
    "AzureWebJobsStorage": "UseDevelopmentStorage=true",
    "AzureWebJobsSecretStorageType": "files",
    "MY_CONNECTION_STRING": "your_storageaccount-Connectionstring
  },
  "ConnectionStrings": {}
}

Try changing the connection string format:

"MyconnectionString":"DefaultEndpointsProtocol=https;AccountName=kvpstorageaccount;AccountKey=1Lj/Uq5cMD7eNMIh9R0bReXXXXXXXXXXXXXX;EndpointSuffix=core.windows.net

you can copy it from your storage Account=>Access keys:

- you can use same host.json configuration.

Workaround 2:

local.settings.json:

{"IsEncrypted": false,
  "Values": {
    "FUNCTIONS_WORKER_RUNTIME": "node",
    "WEBSITE_NODE_DEFAULT_VERSION": "14.16.0",
    "AzureWebJobsStorage":"your_connection_string",
    "AzureWebJobsSecretStorageType": "files",    
  "ConnectionStrings": {}
}

• In the host.json file, update the "storageProvider" section of the "durableTask" as shown below: "connectionStringName":"MY_CONNECTION_STRING" to "connectionStringName":"AzureWebJobsStorage".

host.json:

{
  "version": "2.0",
  "logging": {
    "logLevel": {
      "default": "Information",
      "DurableTask.AzureStorage": "Warning",
      "DurableTask.Core": "Warning",
    },
  "extensions": {
    "durableTask": {
      "hubName": "HubName",
      "localRpcEndpointEnabled": false,
      "storageProvider": {
        "connectionStringName": "AzureWebJobsStorage"
      },
      "tracing": {
        "traceInputsAndOutputs": false,
        "traceReplayEvents": false
      }
    }
  },
  "extensionBundle": {
    "id": "Microsoft.Azure.Functions.ExtensionBundle",
    "version": "[3.*, 4.0.0)"
  }
}

This aligns properly with the connection string defined in local.settings.json.

• Debug and check locally before pushing the changes.
• Push the changes to docker image, Rebuild and Redeploy the image.