Hi Jamie,
Sorry for the inconvenience caused. We are unable to provide support for Syncfusion ASP.NET MVC 6 NuGet Packages from Syncfusion public NuGet feed link, since installation issues occurred from our Syncfusion NuGet server. So you can’t access the Syncfusion ASP.NET MVC6 NuGet packages from our Syncfusion public NuGet feed links.
The Syncfusion ASP.NET MVC 6 NuGet Packages will be published in our Syncfusion NuGet server by 2016 Volume 1 Service Pack 1 release.
We are unable to reproduce the reported dnx files missing issue in our end. Once you have installed the Syncfusion Essential Studio for ASP.NET MVC setup, Syncfusion MVC6 NuGet packages will be available in the below location.
Location: C:\Users\{CurrentUser}\.dnx\packages
Example: C:\Users\Syncfusion\.dnx\packages
Setting up of Syncfusion dependencies for my project.json is based on the availability of MVC6 NuGet packages in the .dnx folder.
So please ensure the .dnx folder availability in the above mentioned location in your machine.
Let us know if you face any further issues on this.
Regards,
Ganesh M