Vs 2015 malformed NuGet.Config missing root element

 To fix the Vs2015 issue at JCDC use this as the guts of your NuGet.Config file in the
root of the solution.

If you are not at JCDC leave out the repository path and put in the guts of your own old style NuGet.Config

<?xml version="1.0" encoding="utf-8"?>

<configuration>

<settings>

<repositoryPath>./packages</repositoryPath>

</settings>

</configuration>