I built a very simple tab based app with 2 tabs, each tab tied to its own view controller.
Straightforward so far. I then create a simple IBOutlet on my 2nd view controller like so
#import <UIKit/UIKit.h> @interface bViewController : UIViewController { IBOutlet UITextField *aField; } @property (nonatomic, retain) UITextField *aField; @end then i synthesize it in my .m file, then i go into my xib, drag a text field onto the view and then set the files owner to ‘aField’.
Very textbook so far.
It builds, but when i run it and select the 2nd tab (which shows the view where i’ve linked the UITextfield IBOutlet), it throws this error.
warning: Unable to read symbols for '/System/Library/Frameworks/UIKit.framework/UIKit' (file not found). warning: Unable to read symbols from 'UIKit' (not yet mapped into memory). warning: Unable to read symbols for '/System/Library/Frameworks/CoreGraphics.framework/CoreGraphics' (file not found). warning: Unable to read symbols from 'CoreGraphics' (not yet mapped into memory). which is VERY ODD because this only started happening recently. Any clues?
UPDATE:
I’m beginning to suspect a config error rather than a syntax error because these are stripped down samples i created just to demonstrate the problem. This fails only when i create a tab-based application.
if i do the EXACT same thing in a view-based application, it works fine.
Ok, classic n00b mistake. Apparently the error has nothing to do with linking to an IBOutlet. The problem stems from the fact that when working with a tab based application, you have to set the viewController class in both the view XIB AND on the tab strip itself.