"No polymer found" issue

Hello, i can’t get the designer to work. I’m making a start project from Vadin Website, in IntelliJ. When putting a new Vaadin 10+ view i’m getting this error “No polymer found”. Tried already running the app, building, cleaning, reinstalling etc. but it doesn’t help
obraz

The issue has been reported also in the GitHub a while back. There is description of a workaround.

If you are just starting out with a new project, I highly recommend starting with Vaadin Copilot instead of Designer.