title: UITableView dataSource must return a cell from tableView:cellForRowAtIndexPath: Exception
body: <p>i actually dont see my error:</p>
  
  <pre><code>- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
    static NSString *CellIdentifier = @"Cell";
  
    FriendTableViewCell *cell = (FriendTableViewCell *)[tableView dequeueReusableCellWithIdentifier:CellIdentifier];
    if (cell == nil) {
        cell = [[[FriendTableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease];
        [[NSBundle mainBundle] loadNibNamed:@"FriendTableViewCell" owner:self options:nil];
        cell = friendCell;
    }
    cell.lblNickname.text =  @"Tester";
    return cell;
  }
  </code></pre>
  
  <p>What am i doing wrong? I checked all twice.. but dont see the error.</p>
  
  <p>Thanks for your help!</p>