Sweep1 command on square curve

Grasshopper
1

I’m new to the Grasshopper.
I’m trying use sweep 1 command around square curve and is not working for me.
Somebody may help me?
Steven
Sweep002.gh (12.2 KB)
Sweep002.3dm (134.1 KB)

3

Canvas%20at%2002%3B29%3B57
Canvas at 02;29;57.png1352×471 153 KB
Sweep002_re.gh (10.6 KB)