Select not working

Version: Vaadin 13.0.7
Method: Using Designer

Hi everyone,

I want to use the select component for navigation instead of the combobox.
Unfortunately it gives me the error attached and it doesn’t do anything. It doesn’t matter if I add the component in the HTMl Page or through Java it just doesn’t work. Anyone an idea on how to solve this?

Not enough information about your problem for a response.