File's Owner does not show methods in Interface Builder 3.2.6 but the class is set correctly and the nib on the lower left is green

Question

Hi, I'm trying to make my first IPhone app. After having problems with interface builder the first time I coppied the code directly from a tutorial in case I made any mistakes. I saved the program, and re-opened the .xib file. Right clicking  File's Owner does not show a list of methods. I've been looking around for solutions for this but have not gotten anything to work. I tried deleting the default .xib and creating a new one through file-> new file. This did not help. I did notice that File's owner was showing up as a light blue cube apposed to a yellow one now and found that a bit odd but otherwise nothing changed. I opened the library menu and selected helloWorldiPhoneViewController so it would show up in the view port. I set the class field of File's Owner to hellowWorldiPhoneViewController. File's Owner still does not show methods when right clicked or when a line is dragged over a button. I read somewhere that the color of nib on the lower left of the viewport may indicate a problem, but it is green not indicating any issue. Every solution I found for someone else seems nto to work for me and I don't know how to continue.
here is the .h file just in case:
//  HelloWorldViewController.h
//  HelloWorld
//  Created by Paul Peelen on 2011-03-14.
//  Copyright 2011 9697271014. All rights reserved.
#import <UIKit/UIKit.h>
@interface HelloWorldViewController : UIViewController {
        UILabel *textLabel;
@property (nonatomic, retain) IBOutlet UILabel *textLabel;
- (IBAction)changeTheTextOfTheLabel;
@end
I'm trying to connect changeTheTextOfTheLabel to a button and textLabel to a label

Answer 1

You need a parameter for an interface builder method. The type should be id and the name is typically "sender". It would look like this:
- (IBAction)changeTheTextOfTheLabel: (id) sender;
Be careful about those tutorials. Many are ancient and do not correspond to current Xcode behaviour.