错误-swift-Tableview-自定义单元格

Question

I got an error message that says" Could not find an overload for 'subscript' that accepts the supplied arguments" how can I fix it

//declaration  of children
var children = [Child]()

func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell{

        let cell:UITableViewCell = UITableViewCell(style:UITableViewCellStyle.Default, reuseIdentifier:"Cell")
        cell.textLabel?.text = children[indexPath.row] //error appears here
        return cell

    }

Answer 1

children is probably not specified as an Array of Strings. You need to explicitly cast children[indexPath.row] to a String, or change the type of children

cell.textLabel?.text = children[indexPath.row] as! String