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BOOK: Beginning iOS 4 Application Development
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Old October 29th, 2011, 08:22 PM
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Default Ch. 4 view controls troubles

I have done the follow along in the book for the window-based application and can't seem to get it to build and run without several errors.
First error:
@interface HelloWorldViewController : HelloWorldViewController.m (expected identifier, cannot find interface declaration for HelloWorld) this is in viewController.h file

Second error:

#import "HelloWorldViewController.h"

@implementation HelloWorldViewController

- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{(hehelloworld cannot use super because it is in root class
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
// Custom initialization
return self;

- (void)didReceiveMemoryWarning
// Releases the view if it doesn't have a superview.
[super didReceiveMemoryWarning];

// Release any cached data, images, etc that aren't in use.

#pragma mark - View lifecycle

- (void)viewDidLoad
[super viewDidLoad];
// Do any additional setup after loading the view from its nib.

- (void)viewDidUnload
[super viewDidUnload];
// Release any retained subviews of the main view.
// e.g. self.myOutlet = nil;

these are the first two errors there are more but I will post them in a few.

Thanks in advance for the help. Also I am using Xcode 4.1 for this book and some of the examples are different formats with this version
Old October 30th, 2011, 08:18 PM
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It will be easier to diagnose if I can see the project in its entirety. Send it to
[email protected]
and I should be able to work it out for you.


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