EF Core 3.1 to target .NET Standard 2.0

[OpenSpacesAndPlaces]

Update from 2.1.4 to 3.0.0

Could not install package 'Microsoft.EntityFrameworkCore 3.0.0'. You are trying to install this package into a project that targets '.NETFramework,Version=v4.8', but the package does not contain any assembly references or content files that are compatible with that framework. For more information, contact the package author.
Steps to reproduce

Update to Microsoft.EntityFrameworkCore 3.0.0 via Visual Studio 2019 Nuget
Further technical details

EF Core version: 2.1.4 -> 3.0.0
Database provider: (e.g. Microsoft.EntityFrameworkCore.SqlServer)
Target framework: .Net Framework 4.8
IDE: Visual Studio 2019

ref: #17999

EF Core 3 to target .NET Standard 2.0 so .Net Framework continues to be supported

[daniel-white]

https://docs.microsoft.com/en-us/ef/core/what-is-new/ef-core-3.0/breaking-changes#netstandard21

[OpenSpacesAndPlaces]

https://docs.microsoft.com/en-us/dotnet/standard/net-standard
"The .NET Standard is a formal specification of .NET APIs that are intended to be available on all .NET implementations. The motivation behind the .NET Standard is establishing greater uniformity in the .NET ecosystem. "

I'm well aware that it was dropped - I was encouraged by another contributor to open up a feature request for this.

IMO the move seems antithetical to why .Net Standard was created.

[roji]

@OpenSpacesAndPlaces you can read the discussion in #15498. In any case, the decision has already been made, and new versions of EF Core will definitely not be targeting .NET Framework again.

[roji]

Duplicate of #15498

[ErikEJ]

@roji not so fast, @bricelam asked the OP to create an issue, afaik

[roji]

Sorry, missed that other issue.

[smitpatel]

Whoever is stumbling upon this thread, if you require EF Core 3 to target netstandard2.0 then please upvote first post.