故事板警告：原型表单元格必须具有重用标识符

我从故事板中收到此警告 - 原型表格单元格必须具有重用标识符。

I am getting this warning from storyboard - prototype table cells must have reuse identifiers.

我已在属性检查器中重命名了标识符，但它似乎没有删除了警告。

I have renamed the identifier in the attributes inspector but it does not seem to have removed the warning.

有什么建议吗？