I was hoping to solve this myself but googling around hasn't got me any further.
I have tried both VS 2015 and 2017 to no success. The error reported is same in both cases, it seems to be missing a .dll for x86. The error reads:-
Severity Code Description Project File Line Suppression State
Error The "MonoGame.Build.Tasks.CollectContentReferences" task could not be loaded from the assembly C:\Program Files (x86)\MSBuild\MonoGame\v3.0\MonoGame.Build.Tasks.dll. Could not load file or assembly 'file:///C:\Program Files (x86)\MSBuild\MonoGame\v3.0\MonoGame.Build.Tasks.dll' or one of its dependencies. The system cannot find the file specified. Confirm that the declaration is correct, that the assembly and all its dependencies are available, and that the task contains a public class that implements Microsoft.Build.Framework.ITask. Game10
I have also tried both the stable and dev releases of MonoGame and have the same result.