Not Able to install some Nuget Packages

Question

Hi

I am getting following errors while installing EntityFrameworkCoreTools and EntityFramWorkDesign form Nuget Packages Manager.

Please help me, I tried to install these on both .NET framewok 9.0 and 8.0 Thanks

*Package Microsoft.CodeAnalysis.Common 4.8.0 is not compatible with net9.0 (.NETCoreApp,Version=v9.0).Package Microsoft.CodeAnalysis.Common 4.8.0 does not support any target frameworks.

Package Microsoft.CodeAnalysis.CSharp 4.8.0 is not compatible with net9.0 (.NETCoreApp,Version=v9.0).Package Microsoft.CodeAnalysis.CSharp 4.8.0 does not support any target frameworks.

Package Microsoft.CodeAnalysis.CSharp.Workspaces 4.8.0 is not compatible with net9.0 (.NETCoreApp,Version=v9.0). Package Microsoft.CodeAnalysis.CSharp.Workspaces 4.8.0 does not support any target frameworks.

Package Microsoft.CodeAnalysis.Workspaces.Common 4.8.0 is not compatible with net9.0 (.NETCoreApp,Version=v9.0). Package Microsoft.CodeAnalysis.Workspaces.Common 4.8.0 does not support any target frameworks.

Package Microsoft.Build.Framework 17.8.3 is not compatible with net9.0 (.NETCoreApp,Version=v9.0).Package Microsoft.Build.Framework 17.8.3 does not support any target frameworks.

Package 'Microsoft.Bcl.AsyncInterfaces 7.0.0' 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, .NETFramework,Version=v4.8.1' instead of the project target framework 'net9.0'. This package may not be fully compatible with your project.*

Answer 1

.NET Framework is not compatible with .NET Core 8 (or 9).

If you are trying to port an older application to Core then see the migration recommendations.

https://learn.microsoft.com/en-us/dotnet/core/porting/

If you want EF Core libraries then pick .NET Core libraries that match your project.

https://www.nuget.org/packages/microsoft.entityframeworkcore