Google routines vs aliasses

hi
i have the NON cloud GA component setup
i have screens/covers enabled, but they are exposed a switch
so if i say : screen one ON , it goes down

seems aliasses are not working? so i was thinking about routines
so created a routine

screen one down => action => screen one ON

but if i do that, i get a rep^ly back like : seems screen is not yet configured yet as a device

how can i make it to work with aliasses or routines?

anyone an idea?

thnx