I've read basically the whole book (except for the 3d chapter but I'm not doing 3d, I'm trying to make a 2d game) and now I want to make a game using the engine from the book. So I downloaded the source code (here: http://sourceforge.net/projects/iphonegamebook/files/) and tried to copy the files and change the code to work, and no matter what I do, it will not work!
One of the ways I tried was to copy all the files then copy the code of the app delegate into the app delegate that was created when I made the new project, and I even made a new project with the same name and just copy the files from source code, nothing will work!

Also, is there a possible way to create some sort of template so I wouldn't have to go through all of this?

Please, can someone try it themselves and if you actually get it to work, please tell me how you did it!
I've spent the WHOLE weekend trying to get it to work

Thank you so much in advance!

I downloaded the Chapter5 files to test it out for you, and the included Xcode project built and ran just fine for me (minus a little bugginess in the FPS texture, but that's easily fixed by changing the malloc to calloc in GLFont.m).

I figured out what was wrong.

Thanks