In this blog post, I will show you how to change an ASP.NET Core application SDK framework from one .NET version to another.
In my case, I have installed .NET 3.0 preview on my machine and need to test my web application.
To change the target framework. I right click on my project in Virtual Studio 2019 or 2017 and click on properties.
From the properties windows applications section, I select the Target Framework from the drop-down list and click OK.