BRTDfunc and radiance error "truncated octree"

Hii, I’m working with radiance for my thesis. But I haven’t worked with command prompt before. I installed radiance on windows and tried to create a simple room with a window, a chair, and a table. I exported the 3d model from Rhino but I keep getting errors when I’m working with radiance. It would be a great help If you could help me out.