I have the same issue, where can i find the solutio, In this case I have the same issue for ASP.NET COR, 2018.3.1017.
answered on 08 Nov 2018, 07:30 AM
The message observed in the UI points to a trial Kendo.Mvc.dll that is being in use in your project. To avoid that issue remove the reference to the trial Telerik UI for .Net Core package and add a reference to the licensed version of the suite (Telerik.UI.for.AspNet.Core). If you have not installed the commercial Telerik UI for ASP.NET Core suite, you could do that by downloading the installer from your Telerik account.
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