There seems to be a lot more missing than just icons.
The project won't build.
Hi, sorry to hear you've having problems. I'll take a look and let you know what I find.
I've had a look, the missing images were causing the build to fail (I'm sure that's a new feature of Xcode). You also need to retrieve the HierarchyApp code which is a git submodule, I should have mentioned this in the docs and have now done so. To retrieve it you need to type the following commands from within your checked out smcliv directory:
git submodule init
git submodule update