.netCore3.1 to .net6.0 function app upgrade - Unable to debug in local (DLL error)-CodePudding

I have been working on to upgrade my function app .netcore3.1 solution to .net6.0. After upgrading the solution and all the packages - when i run the solution in local - it is throwing below error. I am unable to debug the function app in local. It is throwing error in startup.cs class. Any solution for this ?

System.MissingMethodException: 'Method not found: 'Microsoft.Extensions.Configuration.IConfigurationBuilder Microsoft.Azure.WebJobs.Hosting.IWebJobsConfigurationBuilder.get_ConfigurationBuilder()'.'

CodePudding user response：

I have created a Function App with.NET core 3.1 version.

My .csproj for .NET Core 3.1

<Project Sdk="Microsoft.NET.Sdk">
  <PropertyGroup>
    <TargetFramework>netcoreapp3.1</TargetFramework>
    <AzureFunctionsVersion>v3</AzureFunctionsVersion>
  </PropertyGroup>
  <ItemGroup>
    <PackageReference Include="Microsoft.NET.Sdk.Functions" Version="3.1.1" />
  </ItemGroup>
  <ItemGroup>
    <None Update="host.json">
      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
    </None>
    <None Update="local.settings.json">
      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
      <CopyToPublishDirectory>Never</CopyToPublishDirectory>
    </None>
  </ItemGroup>
</Project>

Migrated from .net core 3.1 to .net 6.0, when I tried with the .csproj provided in the code got the below errors. enter image description here

In .csproj file, Change the AzureFunctionsVersion from v3 to v4. Update Microsoft.NET.Sdk.Functions NuGet Package to latest version - 4.1.1

Output:

enter image description here

Code for FunctionsStartup in Startup.cs

using Function3Core;
using Microsoft.Azure.WebJobs.Hosting;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Microsoft.Azure.Functions.Extensions.DependencyInjection;

[assembly: FunctionsStartup(typeof(Startup))]
namespace Function3Core
{
    class Startup : FunctionsStartup
    {
        public override void Configure(IFunctionsHostBuilder builder)
        {
        }
    }
}

Code for WebJobsStartup in Startup.cs

using Function3Core;
using Microsoft.Azure.WebJobs.Hosting;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Microsoft.Azure.WebJobs;

[assembly: WebJobsStartup(typeof(Startup))]
namespace Function3Core
{
   class Startup : IWebJobsStartup
    {
        public void Configure(IWebJobsBuilder builder)
        {
        }
    }
}