System.ArgumentNullException : Value cannot be null. (Parameter 'type')

[ysefwakil]

Assemblies affected
ASP.NET Core OData 7.5.0

Describe the bug
Unit tests failing when upgrading to .NET 6.0
Reproduce steps
The simplest set of steps to reproduce the issue. If possible, reference a commit that demonstrates the issue.

        public void Startup_Configure_Ok()
        {
            // Arrange   
            ServiceCollection serviceCollection = new ServiceCollection();
            serviceCollection.AddOData();
            ServiceProvider provider = serviceCollection.BuildServiceProvider();
            var appBuilder = new ApplicationBuilder(provider);       
            var routeBuilder = new RouteBuilder(appBuilder);
            routeBuilder.EnableDependencyInjection();

            Startup startup = new Startup(_fixture.GetConfiguration());

            // Act
            startup.Configure(appBuilder);

            // Assert
            Assert.True(true);
        }

this is failing with the following error:

[mikepizzo]

@xuzhg -- this is the same error that was reported in a separate thread. Looks like there is an incompatibility between ASP.NET Core OData 7.x and .NET 6.

Since .NET 3.1 is going out of support, we need to prioritize any issue blocking migration to .NET 6.

[xuzhg]

@ysefwakil

The "problem" looks from this line: https://github.com/OData/WebApi/blob/master/src/Microsoft.AspNet.OData.Shared/DefaultContainerBuilder.cs#L92

'ServiceCollectionContainerBuilderExtensions' is removed or changed in .NET 6? but at my test and investigation, .NET 6 contains this class. But, not in .NET 7. It's weird.

Would you please share with me your whole repro?
At my test,

<Project Sdk="Microsoft.NET.Sdk">

  <PropertyGroup>
    <TargetFramework>net6.0</TargetFramework>
    <ImplicitUsings>enable</ImplicitUsings>
    <Nullable>enable</Nullable>

    <IsPackable>false</IsPackable>
  </PropertyGroup>

  <ItemGroup>
    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.1.0" />
    <PackageReference Include="xunit" Version="2.4.1" />
    <PackageReference Include="xunit.runner.visualstudio" Version="2.4.3">
      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
      <PrivateAssets>all</PrivateAssets>
    </PackageReference>
    <PackageReference Include="coverlet.collector" Version="3.1.2">
      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
      <PrivateAssets>all</PrivateAssets>
    </PackageReference>
  </ItemGroup>

  <ItemGroup>
    <ProjectReference Include="..\..\..\github\odata\WebApi\src\Microsoft.AspNetCore.OData\Microsoft.AspNetCore.OData.csproj" />
  </ItemGroup>

</Project>

    public class UnitTest1
    {
        [Fact]
        public void Test1()
        {
            // Arrange   
            ServiceCollection serviceCollection = new ServiceCollection();
            serviceCollection.AddOData();
            ServiceProvider provider = serviceCollection.BuildServiceProvider();
            var appBuilder = new ApplicationBuilder(provider);
            var routeBuilder = new RouteBuilder(appBuilder);
            routeBuilder.EnableDependencyInjection();

            Startup startup = new Startup(/*_fixture.GetConfiguration()*/);

            // Act
            startup.Configure(appBuilder);

            // Assert
            Assert.True(true);
        }
    }

    public class Startup
    {
        public Startup(/*IConfiguration config*/)
        {
            //ConfigurationManager manager = new ConfigurationManager();
            //manager.GetConnectionString("setting");
        }

        public void ConfigureService(IServiceCollection services)
        {

        }

        public void Configure(IApplicationBuilder app)
        {

        }
    }

The test works fine.

[xuzhg]

@ysefwakil Would you please try the nightly package, version 7.7.0.---. See details at; https://github.com/OData/WebApi#nightly-builds

[ysefwakil]

After upgrading to 7.7.0 using .net6.0, my whole project fails rather than just my unit tests:

[xuzhg]

@ysefwakil Is it ok to share with me your repro?
If can't share, can we have a remote session to take a look at your repro together?
I am at PST. Just share with me a meeting link

[ysefwakil]

Hi, I am unable to do any sessions of this sort, however I have seen a couple commits go through. Should I update to a specific version of Odata for this fix?