Thank you for contacting us.
The problem in your case is most probably a kind of a version mismatch. RadForm
is an item template that depends on Telerik assemblies. The Item template wizard is responsible for ensuring these dependencies. The error you encountered is expected when the required assemblies with a version that matches the version of the Telerik.WinControls
project reference cannot be found. The wizard searches for assemblies either in the product installation folder or in %appdata%\telerik\updates.
In this case I would suggest that you upgrade your project to the latest version
. If your project is up to date you may need just to install the latest version of Telerik UI for WinForms
Please let me know if that helps.