How can I install the NuGet package Microsoft.AspNetCore.App.Ref?

Question

I need to use the Microsoft.AspNetCore.Mvc.ModelMetadataTypeAttribute in my application. I am able to use it with the NuGet package Microsoft.AspNetCore.Mvc.Core. However, this package has been deprecated. I tried to find a replacement for this package. I found that it's in the Microsoft.AspNetCore.App.Ref in .net 7 ModelMetadataTypeAttribute Class. But when I tried to install this package, I got this error "NU1213 The package Microsoft.AspNetCore.App.Ref 7.0.8 has a package type DotnetPlatform that is incompatible with this project."

I am wondering if there is an alternative for me to use Microsoft.AspNetCore.Mvc.ModelMetadataTypeAttribute in .net 7.

Thanks!

Answer 1

Hi,@Kevin Yip

Please check this document:

With the release of .NET Core 3.0, many ASP.NET Core assemblies are no longer published to NuGet as packages. Instead, the assemblies are included in the Microsoft.AspNetCore.App shared framework, which is installed with the .NET Core SDK and runtime installers.

You could try as below:

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

  ......

  <ItemGroup>
    <FrameworkReference Include="Microsoft.AspNetCore.App" />
  </ItemGroup>

</Project>

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Ruikai Feng

Answer 2

It works for me too. At first, I thought I needed to install the package, but just including the framework reference tag was enough.