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POIphone : unrecognized selector sent to instance & viewDidLoad isn't running
 

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    <p>I'm developing an application. I used a TabBar and every tab have its Class (FirstViewController, SecondViewController, ... ) There is one AppDelegate too.</p> <p>When I launch the program, the first Class is running. When i select the second tab, the <code>Secondview</code>.xib 's running but the "<code>viewDidLoad</code>" isn't working. When I select the third Tab, that's the same.</p> <p>I've put some buttons on the third tab, and when I push it, I have a </p> <pre><code> &gt; -[UIViewController testAuthentication:]: unrecognized selector sent to instance 0x5f16920 2011-04-08 13:46:42.511 e-mars[19501:207] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[UIViewController testAuthentication:]: unrecognized selector sent to instance 0x5f16920' </code></pre> <p>Here's the code of my classes</p> <p><strong>SecondViewController.h</strong></p> <pre><code>#import &lt;UIKit/UIKit.h&gt; @interface SecondViewController : UIViewController { } @end </code></pre> <p><strong>SecondViewController.m</strong></p> <pre><code>#import "SecondViewController.h" @implementation SecondViewController - (void)viewDidLoad { [super viewDidLoad]; NSLog(@"viewDidLoad de SecondViewController"); NSURL *url = [NSURL URLWithString: @"http://iosdevelopertips.com/images/logo-iphone-dev-tips.png"]; UIImage *image = [UIImage imageWithData: [NSData dataWithContentsOfURL:url]]; [self.view addSubview:[[UIImageView alloc] initWithImage:image]]; } - (void)dealloc { [super dealloc]; } @end </code></pre> <p><strong>ThirdViewController.h</strong></p> <pre><code>#import &lt;UIKit/UIKit.h&gt; @interface ThirdViewController : UIViewController { IBOutlet UITextField *login; IBOutlet UITextField *motdepasse; NSMutableData *responseData; } @property (retain, nonatomic) UITextField *login; @property (retain, nonatomic) UITextField *motdepasse; @property (retain, nonatomic) NSMutableData *responseData; - (IBAction) testAuthentication: (id)sender; - (IBAction) saveAuthentication: (id)sender; @end </code></pre> <p><strong>ThirdViewController.m</strong></p> <pre><code>#import "ThirdViewController.h" @implementation ThirdViewController @synthesize login; @synthesize motdepasse; @synthesize responseData; - (id)initWithFrame:(CGRect)frame { //if ((self = [super initWithFrame:frame])) { // Initialization code //} return self; } -(IBAction) testAuthentication: (id)sender { //NSLog(@"testAuthentication"); } - (IBAction) saveAuthentication: (id)sender { NSLog(@"saveAuthentication"); } - (void)dealloc { [login dealloc]; [motdepasse dealloc]; [responseData dealloc]; [super dealloc]; } @end </code></pre>
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    1. COWe need to see the code in which you call "testauthentication" to have a chance to see where the problem is.
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    2. CONSLog(@"testAuthentication"); is the only code in the method for the moment (and doesn't run ... indeed)
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