I think I can install more versions of Android installing the "SDK Platform" option of every version. But need I more? What are the Build-tools?
For example, I want that my app support Android 7.1.1 (API version: 25), so I install its "SDK Platform", but in the Tools folder I have multiple build-tools for the API version 25: 25, 25.0.1, 25.0.2 and 25.0.3. What is a correct installation with Xamarin?
