为什么使用旧版本的.NET Framework（2.1）在我的解决方案中创建一个NUnit项目？

Question

I am pretty new in C# and .NET and I have the following problem.

I created a NUnit (version 3.10.1 ) project in my solution. The thing that I can't understand is: why the framework version is the 2.1 ? Is not a very old version? If I try to change it I obtain older version, I am attaching a screenshot:

The strange thing is that the other project into my solution uses the .NET 4.5.2 framnework version.

Why this NUnit project is using an old framework version? there is a way to update it?

What is wrong or what am I missing?

Answer 1

You are targetting .NET Core, which is a completely different framework than the Full .NET Framework.

When you create a new project, you specify the framework to target. You created this one to target .NET Core.

To change your project to target Full framework 4.5.2:

• Right click the csproj and select edit <yourprojectname>.csproj
• Locate the <TargetFramework> element
• Change it from netcoreapp2.1 to net452
• Close the csproj file

For more info on .NET Core, you should have a look at the About .NET Core documentation.

.NET Core is an open-source, general-purpose development platform maintained by Microsoft and the .NET community on GitHub. It's cross-platform (supporting Windows, macOS, and Linux) and can be used to build device, cloud, and IoT applications.

And taken from the .NET Core on Wikipedia