Visual Studio detect the old Azure Functions core tools version

Question

I have an Azure Function project and I want to run the project with Azure Functions Core Tools v4.x. But Visual Studio is always selecting Azure Functions Core Tools 2.6. With that, I am getting the following error:

You are using an outdated version of the Azure Functions Core Tools. For more information, please see: https://aka.ms/func-v2-upgrade

I deleted all Azure Functions Core Tools runtimes in %LocalData%/AzureFunctionTools/Releases/. But again when I run the project, Azure Function Tools 2.6 version is getting installed.

How to change this to use the 4.x version?

I am using:

• Visual Studio 2022
• Windows 11
• .NET Core 2.2

Update:

I found this article on the internet. But just adding a new function to the project did not work for me. But when I create a new project, it selects the latest version of Azure Function Core Tools 4.x . I still don't know how to do this for an existing project.

Answer 1

In my case, visual studio 2022, was using an older version of functions runtime, despite installing newer versions.

This came from the following folder: C:\Users<username>\AppData\Local\AzureFunctionsTools

Even upon deleting the folder contents they were regenerated everytime but only to the older version.

I had to goto visual studio settings, where I found a way to update to the latest version of the functions tool. There was no notification anywhere else asking me to upgrade.