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 screenshots. The first is Project1 and the second is Project2. :
