Install Xamarin on Visual Studio 2015 with Xamarin on Visual Studio 2013 already installed

Question

I have Xamarin installed on the Visual Studio 2013 on Windows Operating System. It works fine.

There is Xamarin tools in VS2013 as follows:

My problem

Answer 1

I recently had horrendous problems trying to install Xamarin on VS2015 + Win10. (I don't have any other VS versions installed.) Even a full install and reinstall left huge holes in the installation. I tried repeatedly and each time the whole dev environment seemed to get itself in a different unusable state.

The fix for me, which is probably hitting a nut with a sledgehammer, was to:

1. Uninstall Xamarin (via Control Panel|Uninstall).
2. Uninstall Visual Studio (via Control Panel|Uninstall).
3. Follow Xamarin's manual uninstallation procedures Full Xamarin Uninstall.
4. Perform full reinstall of Visual Studio, being sure to tick the boxes shown in the answer by Parth Patel above.

This resulted in a faultless, fully functioning Xamarin environment for me. Overkill, maybe, but worth a go if all else fails.