[Vuejs]-How to use Vue draggabale in Vue js 3

#item="" is a shorthand of v-slot:item="" which should be used only with component tag :

 <draggable #item="" ...>
  <li  ...
</draggable>

or template tag :

 <draggable  ...>
  <template #item="">
   <li ...
  </template>
</draggable>