Question 104510 in Azure Question posted in
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"WorkerProcessRestarting. Initialization timed out and host is shutting down" Azure function app run time error

"WorkerProcessRestarting. Initialization timed out and host is shutting down" Azure function app run time error for Isolated function, can someone please help.

I created isolated function app in framework 4.8, not able to debug it locally or run it locally. Visual studio doesn’t show any error when i try to debug the function app. It keeps processing without hitting the function and not returning any error.
Then I tried to deploy it Azure, deployment went fine, when i Try to Run it, get below error in 10 secs
"WorkerProcessRestarting. Initialization timed out and host is shutting down"

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  1. Chosen as BEST ANSWER
    0

    Please refer to the Microsoft sample for Isolated Function App https://github.com/Azure/azure-functions-dotnet-worker/tree/main/samples/FunctionApp

    In my case , by mistake I removed this line .ConfigureFunctionsWorkerDefaults

    This is the screenshot of the Program.cs from the url above

    This is what I added to Program.cs in my solution and which fixed the issue for me. Program.cs with minimum code to make it work


  2. 0

    • I have reproduced in my environment that VS 2022 is not working with the Azure Functions .NET 4.8 Isolated Project in both debug and running.

    • Tried with the VS Code with the same project, it worked only for Run without debugging.
      enter image description here

    • Debugger Points not hitting the code in VS Code and also in VS 2022:
      enter image description here

    enter image description here

    • I have raised the issue in GitHub – Azure Functions dotnet worker Repository and will update the resolution here.
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