I have problem with
running the TelerikMvcWebMail application .
I opened application with VS 2017
When try run it , the following error occurs: “Unable to find version '2018.3.911' of package 'Telerik.UI.for.AspNet.Mvc5.Trial'.”
When I tried the install/update the (the package source Telerik.com defined and have connection to the server https://nuget.telerik.com/nuget) I also got the error:
Severity Code Description Project File Line Suppression State
Error NuGet Package restore failed for project TelerikMvcWebMail: Unable to find version '2018.3.911' of package 'Telerik.UI.for.AspNet.Mvc5.Trial'. https://www.nuget.org/api/v2/curated-feeds/microsoftdotnet/: Error downloading 'Telerik.UI.for.AspNet.Mvc5.Trial.2018.3.911' from 'https://www.nuget.org/api/v2/curated-feeds/microsoftdotnet/'. The ServicePointManager does not support proxies with the https scheme. https://api.nuget.org/v3/index.json: Package 'Telerik.UI.for.AspNet.Mvc5.Trial.2018.3.911' is not found on source 'https://api.nuget.org/v3/index.json'. https://nuget.telerik.com/nuget: Unable to load the service index for source https://nuget.telerik.com/nuget. An error occurred while sending the request. The request was aborted: The request was canceled. This method is not supported by this class.. 0
Can you help me please to solve the problem?