react-beautiful-dnd Unable to find draggable with id: 1
{list.map((item, index) => (
<DraggableItem route={item} index={index} />
))}<Draggable
draggableId={data.id.toString()}
index={index}
>
...
</Draggable>解決方法：
刪除 <React.StrictMode></React.StrictMode>
placeholder could not be found
Droppable setup issue [droppableId: "test"]:DroppableProvided > placeholder could not be found.Please be sure to add the {provided.placeholder} React Node as a child of your Droppable.解決方式：
在 <Droppable></Droppable> 內加上 {provided.placeholder}
