Last Updated: 23 Oct 2020 08:45 by ADMIN
Created on: 21 Oct 2020 08:25
Category: Installer and VS Extensions
Type: Bug Report
UI.for.WinForms.GridView.2020.3.915.nupkg broken



I am using my own nuget server to deploy the Telerik Packages.

So I downloaded the file""

Unfortunately, the contained file "UI.for.WinForms.GridView.2020.3.915.nupkg" is broken:

For any reason, in the subfolder "lib\net40\" there are three different TelerikData.dll and TelerikData.XML files. When importing in our Nuget server, this leads to an error

Error: An exception occurred while rebuilding the package store: System.ArgumentException: Das Element wurde bereits hinzugefügt. Schlüssel im Wörterbuch: "lib/net40/TelerikData.dll". Hinzuzufügender Schlüssel: "lib/net40/TelerikData.dll".

Could you please fix your build-and-deploy process and re-upload the package?


Best regards

Daniel Petat

Attached Files:
Posted on: 23 Oct 2020 08:33

Hello Petia,


thank you for the fast response. Works fine with version 2020.3.1020.

This thread can be closed.




Posted on: 22 Oct 2020 14:57

Hello Daniel,

Thank you for reporting us the WinForms NuGet package issue. 


You are right and version 2020_3_915 contains three different TelerikData.dll and TelerikData.xml files. I am happy to let you know that it is already fixed with our latest release version 2020.3.1020. You could download the latest 


As a token of gratitude for reporting this to us I have updated your Telerik points.

Please do not hesitate to contact us if you need any further assistance.

Regards, Petia Vladova Progress Telerik

Five days of Blazor, Angular, React, and Xamarin experts live-coding on, special prizes, and more, for FREE?! Register now for DevReach 2.0(20).