Xcode Won't Compile

[Wellington2k]

Hello.

I've installed devkitPPC on my Mac using these instructions:
http://devkitpro.org/wiki/Getting_Started/devkitPPC

I've created the project using the instructions in the last part of the last post in this thread:
http://forum.wiibrew.org/read.php?11,67091,67091

But when I compile it says "Compiled Successfully", but no .dol file is made.
I even tried compiling an example project through Terminal and no .dol file was made.

I'm using Xcode 4.2.1 and Lion.

Any help would be appreciated!