title: UIImage return nil only in a UIImageView
body: <p>I'm new in iOS programming, and I have a strange problem...</p>
  
  <p>I created a tableview, add cells with "subtitle" style. In my code, I can set the image, all works fine. the code <code>(g, gf and picturesArray are strings array)</code> :</p>
  
  <pre><code>- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
      static NSString * cellIdentifier = @"fCellID";
  
      UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:cellIdentifier];
  
      NSString *feed = [self.g objectAtIndex:indexPath.row];
      NSString *feed1 = [self.gf objectAtIndex:indexPath.row];
      NSString *feed2 = [self.picturesArray objectAtIndex:indexPath.row];
  
      [cell.textLabel setText:feed];
      [cell.detailTextLabel setText:feed1];
      cell.imageView.image = [UIImage imageNamed:feed2];
      return cell;
  }
  </code></pre>
  
  <p>Next, I want to go to a new view when I click on a cell. Here the code :</p>
  
  <pre><code>- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
      GUDdfViewController *detail = [self.storyboard instantiateViewControllerWithIdentifier:@"GUdfView"];
  
      detail.titleString = [self.gf objectAtIndex:indexPath.row];
      detail.descriptionString = [self.gfs objectAtIndex:indexPath.row];
      detail.contentString = [self.gfc objectAtIndex:indexPath.row];
      detail.imageNameString = [self.picturesArray objectAtIndex:indexPath.row];
  
      [self.navigationController pushViewController:detail animated:YES];
  }
  </code></pre>
  
  <p>OK. All works; in my new view, title and subtitle are present with good content.
  BUT ! the image is not displayed... Here the line where I set the image in "GUDdfViewController" :</p>
  
  <pre><code>[self.pictureLogoOutlet setImage:[UIImage imageNamed:self.imageNameString]];
  </code></pre>
  
  <p>When I use <code>NSLog</code>, it says me that my object <code>(pictureLogoOutlet.image)</code> is <code>null</code>. I also tried this : </p>
  
  <pre><code>[self.pictureLogoOutlet setImage:[UIImage imageNamed:@"baguette.png"]];
  </code></pre>
  
  <p>but the problem is the same...</p>
  
  <p>Do you know why I have this problem ? I really don't understand.</p>