Hey Guys Ive just made it through Lesson two of the intro videos and I am having a problem where bricks are being placed where no geometry exists. Here are a couple shots of whats going wrong and I attached the file as well.
Thanks for any help.

Attachments:
Lesson2_V01.rar (961.8 KB)

This problem is for your Mesh (It's so complex with some open edges !)

But if you wanna use group method ,So you can use “Bounding Volume” instead of “Bounding Object” .
To do that you should convert your mesh to volume with “IsoOffset” SOP.

Check attached project

Attachments:
JKLesson2_V01.hipnc.zip (2.0 MB)