Question 136031 in Visual Studio Code Question posted in
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Visual Studio Code – Debug .NET Framework Azure Functions with v4 of runtime?

According to this article and this code sample with the v4 runtime, it’s now possible to create an Azure Functions app using .NET Framework 4.8 with the isolated process model (it’s in preview). I’ve done this, but I can’t seem to launch or debug it in Visual Studio 2022. When I try, I get the message:

There is no Functions runtime available that matches the version specified in the project.

I assumed the version of the functions runtime was out of date on my computer, which it was. I had the 3.x version installed and so I updated it to 4.0.4736. Unfortunately, Visual Studio still won’t launch my project. Is there a way to get this to work?

The entire csproj file looks like this:

<Project Sdk="Microsoft.NET.Sdk">
  <PropertyGroup>
    <IsPackable>false</IsPackable>
    <TargetFramework>net48</TargetFramework>
    <AzureFunctionsVersion>v4</AzureFunctionsVersion>
    <OutputType>Exe</OutputType>
  </PropertyGroup>
  <ItemGroup>
    <PackageReference Include="Microsoft.Azure.Functions.Worker" Version="1.8.0" />
    <PackageReference Include="Microsoft.Azure.Functions.Worker.Extensions.Http" Version="3.0.13" />
    <PackageReference Include="Microsoft.Azure.Functions.Worker.Extensions.Timer" Version="4.1.0" />
    <PackageReference Include="Microsoft.Azure.Functions.Worker.Sdk" Version="1.7.0" />
  </ItemGroup>
  <ItemGroup>
    <None Update="host.json">
      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
    </None>
    <None Update="local.settings.json">
      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
      <CopyToPublishDirectory>Never</CopyToPublishDirectory>
    </None>
  </ItemGroup>
  <ItemGroup>
    <Folder Include="Properties" />
  </ItemGroup>
</Project>
Tags:

2

Answers


  1. 0

    On Azure Functions v4 .NET Framework 4.8 with the VS 2022 17.3.4 version, I too got the same errors as:

    There is no Functions runtime available that matches the version specified in the project.

    I have raised the issue in the GitHub Repo of Azure Functions dotnet worker but with the preview versions of package references in the .csproj file, it didn’t’ worked for me.

    It worked with the below configuration code:

    .csproj:

    Project Sdk="Microsoft.NET.Sdk">
    <PropertyGroup>
        <TargetFramework>net48</TargetFramework>
        <AzureFunctionsVersion>v4</AzureFunctionsVersion>
        <OutputType>Exe</OutputType>
    </PropertyGroup>
    <ItemGroup>
        <PackageReference Include="Microsoft.Azure.Functions.Worker" Version="1.8.0" />
        <PackageReference Include="Microsoft.Azure.Functions.Worker.Extensions.Http" Version="3.0.13" />
        <PackageReference Include="Microsoft.Azure.Functions.Worker.Sdk" Version="1.7.0" />
    </ItemGroup>
    <ItemGroup>
        <None Update="host.json">
            <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
        </None>
        <None Update="local.settings.json">
            <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
            <CopyToPublishDirectory>Never</CopyToPublishDirectory>
        </None>
    </ItemGroup>
    <ItemGroup>
        <Folder Include="Properties" />
    </ItemGroup>

    local.settings.json:

    {
    "IsEncrypted": false,
  "Values": {
    "AzureWebJobsStorage": "UseDevelopmentStorage=true",
    "FUNCTIONS_WORKER_RUNTIME": "dotnet-isolated"
  }
}

    HttpFunction.cs Function Code is taken from the same GitHub Repository.

    Result:

    enter image description here

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  2. 0

    I found this post while figuring out this issue as well. The issue as reported and linked above by @HariKrishna was closed on GitHub, but it did contain the link to the solution that helped me:

    https://github.com/Azure/azure-functions-dotnet-worker/issues/989

    VS needs to be updated to at least 17.4 (preview) and after that the Azure function tools needs to be updated through Tools, Options, Projects and Solutions, Azure functions, Click Check for updates, then click Download & install.

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