Compile errors undefined reference to `ui_Screen1_screen_init

@kisvegabor apologies but I’m probably too thick to understand this… I am having a hard time understanding the directory structure I’m supposed to create. I tried doing this


changing “board” and “project name” to my actual board and project name. But it doesn’t compile.
So I looked more at the folders on github and found this readme:

Is this what I am supposed to do?
Thanks for your patience.