OC: cell 的 构建错误

- (UITableViewCell *) createImageCellForTableView: (UITableView *) tableView atIndexPath: (NSIndexPath *)indexPath{
    
    
//    NSString * cellId = @"imageCellId";
    static NSString * cellId = @"imageCellId";
    
//    UITableViewCell * cell = [tableView dequeueReusableCellWithIdentifier: cellId ];
    
    EssenceImageCell * cell = [tableView dequeueReusableCellWithIdentifier: cellId ];
    
    if (!cell){
    
    
    
        cell = [[[NSBundle mainBundle ] loadNibNamed: @"EssenceImageCell" owner:nil  options: nil ] lastObject ];
    
    }
    
    
    return cell;
    
    
}