I downloaded the current for your App and was trying to install. My system has Visual Studio 2015, 2017 and 2019 installed but when i check for the Visual Studio integration i do not get the option for 2019 as it is grey out. What causes this ? Is there a fix for it or how can i manually install the 2019 extensions ?
I enclosed 2 screenshots which show the Visual Studio Version as well as the Install option for your Telerik UI for WinForms