Visual Studio version for Android Works

this topic says go for 2017

https://docs.unrealengine.com/latest/INT/Platforms/Android/GettingStarted/1/index.html
and this guy says 1R6 installer requires an installation of Visual Studio to complete successfully. Supported versions are 2010, 2012 or 2013 (not 2015).

I installed VS 2015 and after this android works recognized that a version of VS was installed. I was able to build for android but I was unsuccessful building the AR Sample. Hope this helps.