Very First Problem

[mitcho]

I just started learning from the 3rd edition and immediately I've run into a problem.  When I try to compile the little piece of code called the First program example, xCode returns a 'NSAutoreleasepool is unavailable'.  It would be nice if the 3rd edition had some kind of troubleshooting appendix, so let's hope it gets into the 4th.  In the meantime, any help in getting me to run this ridiculously little program is appreciated.

[Jemcik]

You, obviously, are using the last version of Xcode 4.2
So it has some new features, including ARC (Automatic Reference Counting).
This may help you: http://classroomm.com/objective-c/index.php?topic=5763.0
Read it carefully!

[Fred]

As alternative, you can just uncheck Use ARC when creating the project and then use the code as written in the book. 

I chose to use ARC since that is the way of the future.  It really only required remembering to keep the code inside the new NSAutoreleasePool template, not use the memory management terms, and leaving out the code dealing with memory management like release, dealloc, and replacing retain with strong.  All else seemed to work just fine.

Your choice.  I know making any changes from the book code can be difficult when first starting.

Fred