xcode project not seeing files
I just bought the book and I am on chapter 1 using an iMac, tried compiling the template setup but I am getting errors of the type where Xcode can't see the files. first it couldn't see the common files so I re-named the ones in the navigator and copied the common files in the finder to the navigator in Xcode however the problem seems to be more broad. Can someone tell me what the file structure should look like in the finder so that Xcode can see all of the SDK for the book. I wanted to attach a screenshot but I don't see a place to add attachments.