Trouble installing ASP.Net Core 3.1

[Yannick]

Hi,

Im trying to setup Kendo with an existing application in order to do a demo for a Client

I followed this guide
https://docs.telerik.com/aspnet-core/getting-started/first-steps#configuration

Everything is added but Im getting a runtime error whenever I try to start the application

Here is some information

The application is on Core 3.1
http://i.imgur.com/2b4ppyf.png

The version nuget is getting is 

<PackageReference Include="Telerik.UI.for.AspNet.Core" Version="2016.3.914" />

The application is compiling but as soon it tries to had the Kendo to the container Im getting this issue

http://i.imgur.com/K7j2NGM.png

I'm using VSCode on linux
http://i.imgur.com/M7Am1Fi.png

I saw some post about trial version not being compatible with 3.1 but I am not on trial.

Let me know what we are doing wrong.

Cheers

 

[Dimitar]

Hi Yannick,

ASP.NET Core 3.1 was released at the end of 2019. Thus, Telerik UI for ASP.NET Core provides support from its first official release following that - R1 2020 (v 2020.1.114). The package which is referenced in your project comes from nuget.org - https://www.nuget.org/packages/Telerik.UI.for.AspNet.Core/ . This package was uploaded there by someone, later it became unlisted, but it cannot be removed. Thus, on installing the package, it got installed from nuget.org NuGet package source, instead of downloading a newer version from our private telerik.com NuGet feed. The setup of the private feed is explained in the article.

To fix the issue, make sure that you delete the currently installed package. Then change the source to telerik.com and install Telerik UI for ASP.NET Core 2020.1.114 or newer.

Regards,
Dimitar
Progress Telerik

[Yannick]

Thanks a lot for your answer.

Indeed I found out the NUGET CLI and DOTNET CLI did't looked at the same config files

doing a nuget add source was updated ~/.config/Nuget/Nuget.config

But doing a dotnet restore it was looking into ~/home/<user>/.nuget/NuGet

once I noticed that I just added the telerik source in that file and replace the references.

All is working good now.

Thanks