[C#][ASP.NET] The reference assemblies for framework .NETCore, Version=v5.0 were not found

So Stupid error while working
N2I -2021.02.26

1. Causing issue

While you git clone a dotnet 5 project or setting up a .Net Core 5 project, you got this in your build.

The Target framework in the properties of project can’t set to core 5 & can’t find .Net 5 in system. Only listing the .net framework

2. Solution

Step 1: Install .Net 5 SDK from Microsoft.

Step 2: Update your VS2019 to version 16.8 or upper version [Important]

Then you’ll find the properties in your project comes out normally, you now can build the project without errors.

3. Reason

Cause the msbuild in VS2019 is too stupid to understand .Net 5 before version v16.8, so upgrade it to make it work properly.

4. Reference:

• https://stackoverflow.com/questions/49268779/the-reference-assemblies-for-framework-netcore-version-v5-0-were-not-found