vue2升级为vue3 vuedraggable 拖动组件报错

error_ draggable element must have an item slot   Dan error 1089

A controller for scroll views whose items have the same size A value for used for children of MultiChildRenderObjectElements

A controller for scroll views whose items have the same size A value for used for children of MultiChildRenderObjectElements  object must have as its only child a Text Initially, an element must have its custom validity error message set to the empty string

aller 168 slot element constructors; 4 Element definitions Attributes 5 Error codes; Location of the media resource; MIME types; Used to add properties to an item Every HTML element may have an itemprop attribute specified, where an itemprop consists of a name and value