I am sorry to hear that you have this issue with our Visual Studio extensions. Could you please uninstall and then install again Kendo UI extensions by following these steps:
- Start Visual Studio and open "Tools\Extensions and Updates..."
- Find Kendo UI for ASP.NET MVC VSExtensions entry in the "Installed" section and click the Uninstall button
- Restart Visual Studio
- Go to "Tools\Extensions and Updates..." again and select "Online\Visual Studio Gallery" section. In the "Search Visual Studio Gallery" field (in the top right corner) type "Kendo UI for ASP.NET MVC VSExtensions". Download and install the Kendo UI for ASP.NET MVC VSExtensions package.
- Restart Visual Studio again and check if the problem persists.
Let me know if you need further assistance.
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