I just bought the book: Sams Teach Yourself iPhone Application Development in 24 Hours.
In the book it uses xCode 3.2.4, so I went ahead and tried xCode 4.3 (the current version), but I didn’t understand what to do…
I then found this page…
https://developer.apple.com/downloads/index.action
I downloaded the version of xCode used in the book (just so I could see the same thing the book shows).
But, I’m getting two errors each having something to do with the Interface Builder…
“This version of Interface Builder does not support documents of type “Interface Builder Cocoa Touch Document (XIB 3.x)” targeting “iPhone/iPod touch”.”
And it comes up twice for two different documents in my xCode project.
How can i get it to work? In the book the code I put in works just fine.
Also my Mac Version is: 10.7.3
Do not waste time learning anything about Xcode 3.x. That would be like learning how to build catapults and siege engines in preparation for a career in the military.
Apple completely rewrote Xcode with version 4.0, and every single thing about the user interface is totally and completely different. If you invest time learning 3.x, you will be totally lost and confused when you move up to 4.x (version 4.3. was just released, and there is yet a new version on the horizon.)
I was totally lost and confused for about 2 weeks when I made the move from Xcode 3.x to 4.x, and I do this for a living and have been using Xcode for over 6 years now.
Unfortunately, the iOS development books are behind the curve when it comes to versions of Xcode.
Do yourself a favor and set the Xcode 3 book aside and find an Xcode 4 book (an ebook might be a better choice, since they can be updated.)