Application tried to push a nil view controller on target <UINavigationController - iphone

Question

In my Iphone app I have this pb :Application tried to push a nil view controller on target <UINavigationController:
I have a view controller that contains a tableview and I want that if one row is selected an other view controller to be displayed.
Here is my code :
in RecherchePartenaireViewController.m
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
if (indexPath.row==3){
NSLog(#"RecherchePartenaireDistanceViewController...");
recherchePartenaireDistanceViewController = [[RecherchePartenaireDistanceViewController alloc] init];
self.recherchePartenaireDistanceViewController=recherchePartenaireDistanceViewController.recherchePartenaireViewController;
[self.navigationController pushViewController:recherchePartenaireDistanceViewController animated:YES];
[recherchePartenaireDistanceViewController release];
}
}
In RecherchePartenaireDistanceViewController.h :
#class RecherchePartenaireViewController;
#interface RecherchePartenaireDistanceViewController : UIViewController {
RecherchePartenaireViewController *recherchePartenaireViewController;
}
#property (nonatomic, retain) IBOutlet RecherchePartenaireViewController *recherchePartenaireViewController;
#end
and in RecherchePartenaireDistanceViewController.m
#import "RecherchePartenaireDistanceViewController.h"
#import "RecherchePartenaireViewController.h"
#implementation RecherchePartenaireDistanceViewController
#synthesize recherchePartenaireViewController;
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
// Custom initialization
}
return self;
}
- (void)dealloc
{
[super dealloc];
[recherchePartenaireViewController release];
}
- (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;
}
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
// Return YES for supported orientations
return (interfaceOrientation == UIInterfaceOrientationPortrait);
}
#end
Where is the problem? I really can't see it. Please heeelp....

Answer 1

Try to use this:
- (void)dealloc
{
[recherchePartenaireViewController release];
[super dealloc];
}
instead of
- (void)dealloc
{
[super dealloc];
[recherchePartenaireViewController release];
}

Answer 2

I think I see what you're doing but I don't understand what you're trying to achieve! You have a ViewController that contains another view controller?
i.e. RecherchePartenaireDistanceViewController contains a RecherchePartenaireViewController
I assume that as it's an IBOutlet you're populating it using a xib file.
The only thing I can think of is that something is going wrong with the creation of your RecherchePartenaireDistanceViewController in the xib file.
What do you see in the console if you do this :
NSLog(#"controller : %#", recherchePartenaireDistanceViewController);
just before adding it to the navigation controller?
PS
What's the purpose of this line?
self.recherchePartenaireDistanceViewController=recherchePartenaireDistanceViewController.recherchePartenaireViewController;

Answer 3

if RecherchePartenaireDistanceViewController is with xib interface than use following statement while initializing,
recherchePartenaireDistanceViewController = [[RecherchePartenaireDistanceViewController alloc] initWithNibName:#"RecherchePartenaireDistanceViewController" bundle:nil];
than push it to navigation controller.