How can I change a .NET standard library to a .NET framework library?

Question

I'm writing a class library for a simple parser in C#. When I first created it, I used .NET standard 2.0, but now I need to migrate it to .NET 4.6 both to conform to the other projects in my solution and in order to use NUnit.

I tried to follow the instructions in the Microsoft documentation, but when I try to select another framework in the properties, I can only find other .NET standard versions.

How can I migrate it? Will I need to manually edit the .csproj file?

Answer 1

Open up the project file (.csproj) and change the TargetFramework to net462

<PropertyGroup>   <TargetFramework>net462</TargetFramework> </PropertyGroup> 

Answer 2

My personal experience in Visual Studio 2017 is that recreating project and adding existent sources is the simplest, safest and most effective way - because .Net Framework based csproj file has extra xml elements (comparing with Standard based), it seems changing "TargetFramework" is not enough. Below is portion of diffs appeared by default:

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