Hi Farzad,
Which version of the SpriteShapeController do you use? The same as Rick in the video?
Here is the link to the manual for you:
https://docs.unity3d.com/Packages/com.unity.2d.spriteshape@10.0/manual/SSController.html
I hope this helped. 
See also:
- Forum User Guides : How to mark a topic as solved