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I have a function app in Azure. I have created a slot and deploy to the slot. The issue is I can't see my functions and get the error:

Microsoft.Azure.WebJobs.Extensions.DurableTask: Task Hub name must be specified in host.json when using slots.
Specified name must not equal the default HubName (myfuncapp).

We were not able to load some functions in the list due to errors. Refresh the page to try again. See details
Encountered an error (InternalServerError) from host runtime.

I have created a unique name in the host.json file and re-deployed. Still no difference.

How can I fix this ?

I have a function app in Azure. I have created a slot and deploy to the slot. The issue is I can't see my functions and get the error:

Microsoft.Azure.WebJobs.Extensions.DurableTask: Task Hub name must be specified in host.json when using slots.
Specified name must not equal the default HubName (myfuncapp).

We were not able to load some functions in the list due to errors. Refresh the page to try again. See details
Encountered an error (InternalServerError) from host runtime.

I have created a unique name in the host.json file and re-deployed. Still no difference.

How can I fix this ?

  • azure-functions
Share Improve this question edited Feb 16 at 6:49 marc_s 755k184 gold badges1.4k silver badges1.5k bronze badges asked Feb 16 at 5:01 Wendy Wendy 217 bronze badges 2
  • How did you deploy the function? – Pravallika KV Commented Feb 17 at 4:02
  • Add "extensions": { "durableTask": { "hubName": "MyTaskHub" } } in host.json and deploy the function. – Pravallika KV Commented Feb 17 at 4:46
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Microsoft.Azure.WebJobs.Extensions.DurableTask: Task Hub name must be specified in host.json when using slots. Specified name must not equal the default HubName (myfuncapp).

To resolve this error, you have to add Task Hub name in host.json as below.

host.json:

{
  "version": "2.0",
  "logging": {
    "applicationInsights": {
      "samplingSettings": {
        "isEnabled": true,
        "excludedTypes": "Request"
      },
      "enableLiveMetricsFilters": true
    }
  },
  "extensions": {
    "durableTask": {
      "hubName": "MyTaskHub"
    }
  }
}

Able to deploy the function to Deployment slot of Azure function app:

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