Recreating a Duplicate iPhone Project with Interface Builder Errors

Due to some extraneous errors in a previous XCode project that wouldn't allow my iPhone app to run on the iPhone, I had to take all the code and files from what we'll call Project1 and build a new project called Project2.

I then filled Project2 with all the same files, not changing any code.

Next I had to recreate the Interface Builder files. As far as I can tell, this was done with the exact same classes declared in all the IB objects.

However, when I build Project2, it only shows a visible black screen and doesn't display the app.

The one difference I have found between the two projects is that in Project2's Interface Builder, the ToolbarController outlet is not even available for the view, and it is in Project1. I am assuming the lack of connecting the File View to ToolbarController is the problem.

Why is ToolbarController (as shown below) not available and how do I fix this difference?

Below are two screenshot开发者_开发问答s. The first is Project1 and the second is Project2. :

alt text http://img32.imageshack.us/img32/8296/picture1xne.png alt text http://img51.imageshack.us/img51/4194/picture3to.png

You've probably got the "File Owner" (or the "Toolbar View") set to the wrong class. Interface Builder doesn't see any outlets or actions in the classes you have set currently.