I have recently become involved with a project that was started in VS2015 with what i have to assume was the previous version of Telerik UI. When the project is loaded from my co-workers machine everything is fine. When I open the same project from our Team Foundation server using VS2017 and the current version of the Telerik UI I get the error message shown in the design tab.
I am very new to .net development and the Telerik UI software so if any additional information is needed please let me know.
Thank you in advance for any assistance.