Scaffolding: The new version of Microsoft.VisualStudio.Web.CodeGeneration.Design isn't compatible with dotnet core 3

[akaahmedkamal]

I just updated the Microsoft.VisualStudio.Web.CodeGeneration.Design package from 3.0.0 to 3.1.0 and the visual studio started showing the following warning message.

Severity    Code    Description Project File    Line    Suppression State
Warning NU1701  Package 'Microsoft.VisualStudio.Web.CodeGeneration.Design 3.1.0' was restored using '.NETFramework,Version=v4.6.1, .NETFramework,Version=v4.6.2, .NETFramework,Version=v4.7, .NETFramework,Version=v4.7.1, .NETFramework,Version=v4.7.2, .NETFramework,Version=v4.8' instead of the project target framework '.NETCoreApp,Version=v3.0'. This package may not be fully compatible with your project.    NewsPass.Api    E:\WorkSpace\Projects\NewsPass\newspass-web-api\src\NewsPass.Api\NewsPass.Api.csproj    1   

should I downgrade to 3.0.0?

[ibirite]

I had the same problem here.

Downgrading it was the only solution I was able to do. And it worked fine.

[deepchoudhery]

Is your project netcoreapp 3.1?

[akaahmedkamal]

yes

[ratanparai]

Facing the same issue. Downgrading to 3.0.0 is the only option for now to solve it.

[akaahmedkamal]

If someone else still facing this issue (which isn't an issue) here's how I solve it

• Upgrade the dotnet core SDK to 3.1.100
• Update the target framework of your project to netcoreapp3.1 instead of netcoreapp3.0

to upgrade the target framework through VS Properties -> Application -> Target Framework and select .Net Core 3.1 from the dropdown menu or modify the csproj file directly and set <TargetFramework>netcoreapp3.0</TargetFramework> to <TargetFramework>netcoreapp3.1</TargetFramework>

[ratanparai]

Can confirm. It was my mistake. This error only occurs if you do not update the target framework version to 3.1.

This issue can be closed 🍻

[deepchoudhery]

Yes, the expectation is that the tfm, and the package version match. We are looking potential workarounds or updating docs accordingly.

Thanks.