[SOLVED] Orchestrator function 'XYZ' failed: The function 'XYZ' doesn't exist, is disabled, or is not an orchestrator function

Orchestrator function 'XYZ' failed: The function 'XYZ' doesn't exist, is disabled, or is not an orchestrator function

I'm trying to run Azure Orchestrations and I sunddenly I started getting the error from the statusQueryGetUri:

Orchestrator function 'UploadDocumentOrchestrator' failed: The function 'UploadDocumentOrchestrator' doesn't exist, is disabled, or is not an orchestrator function.

I've run this functions dozens of times today without any issue. VSCode doesn't flag any issues. I've tried restarting and that hasn't helped either.

This has happened once before. I got the error, troubleshot for like 3 hours, got frustrated, left, and came back to my computer an hour later and the problem was resolved without changing anything. I suspect the issue is related to caching somehow, but I'm not sure where to fix this.

There is a similar issue noted at: https://github.com/Azure/azure-functions-durable-extension/issues/577

After I run func start, my "missing" orchestration appears in the launch screen indicating that it is valid as shown below.

I start the UploadDocumentOrchestrator with the HttpTrigger StartUploadDocuments. I see the trigger complete its execution UploadDocumentOrchestrator never starts in the logs.

    UploadDocumentOrchestrator: orchestrationTrigger

For detailed output, run func with --verbose flag.
[2023-01-11T19:58:10.490Z] Executing 'StartUploadDocuments' (Reason='This function was programmatically called via the host APIs.', Id=f158ac3e-fa39-403c-9671-307ea54d5948)
[2023-01-11T19:58:10.599Z] Started orchestration with ID = '29b9ab7fcffe4f59bd47032ef21c19e8'.
[2023-01-11T19:58:10.620Z] Executed 'StartUploadDocuments' (Succeeded, Id=f158ac3e-fa39-403c-9671-307ea54d5948, Duration=154ms)
[2023-01-11T19:58:13.952Z] Host lock lease acquired by instance ID '0000000000000000000000004906C298'.

Solution

Try to change the name of the Durable hub i.e "hubName": "DurableHub", in host.json file of your Azure function application.

"durableTask": {
            "hubName": "DurableHub", // Change to your xyzhubname
            "storageProvider": {
                "connectionStringName": "ConnectionString" 
            }