.NET’s SDK is a component for Windows that enables development using certain programming languages, and may be necessary for your class.
Install .NET SDK
If you have not already, you’re going to need to install the .NET SDK. By default, the SDK should come with x64 versions of .NET, but not always.
Download the .NET SDK from Microsoft and follow the steps to complete the installation.
Further Troubleshooting
If you’ve installed the .NET SDK and it’s not behaving still, you may have installed both the 32-bit and 64-bit versions at some point. As such, you’ll want to follow Microsoft’s Instructions under the “No .NET SDK was found” section of their Troubleshooting guide.