Whenever I try and download from Nuget Package Explorer I got the following error:
Retrieving package 'Telerik.UI.for.AspNet.Core 2016.3.914' from 'telerik.com'.
GET https://nuget.telerik.com/nuget/Packages(Id='Telerik.UI.for.AspNet.Core',Version='2016.3.914')
OK https://nuget.telerik.com/nuget/Packages(Id='Telerik.UI.for.AspNet.Core',Version='2016.3.914') 79ms
Install failed. Rolling back...
Uninstalling NuGet package Telerik.UI.for.AspNet.Core.2016.3.914.
Executing nuget actions took 132.55 ms
Package contains multiple nuspec files.
========== Finished ==========
Time Elapsed: 00:00:01.8826245
However, when I just edit the project.json manually to include the package and then rebuild to trigger a package restore, it works fine.
"Telerik.UI.for.AspNet.Core": "2016.3.914"