Cant get microsoft.EntityFrameworkCore.SqlServer V8.0.0 to Load without error

Question

I have open a new project wpf in Visual Studio. I wanted to use the latest services. (.net 8, EntityFramework 6, Sqlserver).

However, no matter what I tried I get an error.

Here is what I have done.

1. Opened Visual Studio 2020.
2. Create a new project.
3. Template WPF Application with .net 8
4. All OK to this point then when I get the newget package Microsoft.EntityFrameworkCore.SqlServer V8.0.0 I get the error as per the attached screenshot.
5. What am I doing wrong?

Answer 1

as vs 2020 does not support .net 8 projects, most likely you created a 4.8 project, which will not support EF core. to create a dotnet 8 WPF app. install .net 8, create a folder for the project then:

dotnet new wpf
dotnet add package Microsoft.EntityFrameworkCore.Sq|Server
dotnet restore

Answer 2

Hi,@Leonard Salamacha. Welcome to Microsoft Q&A Forum.

First of all, you are currently using Visual Studio 2020. You could update your Visual Studio to a version that can use .NET 8. For more you can refer to Version requirements for .NET 8 SDK .

Visual Studio 2022 Preview with the .NET desktop development workload installed. The .NET 8 SDK is automatically installed when you select this workload.

It is recommended that you right-click your project name and select Properties to confirm whether the Target Platform of your project is .NET 8.

Then you could try to see if you can successfully add nuget package Microsoft.EntityFrameworkCore.SqlServer V8.0.0 .

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