Problem adding custom extension：RangeError: Adding different instances of a keyed plugin (plugin$)

[kailiming]

My tiptap was originally working, but problems occurred after adding the following extension.

"nuxt-tiptap-editor": "^1.1.2",
"@tiptap/core": "^2.4.0",

import { Extension } from '@tiptap/core'
import { Plugin, PluginKey } from '@tiptap/pm/state'

export default Extension.create({
  name: 'eventHandler',

  addProseMirrorPlugins() {
    return [
      new Plugin({  
        key: new PluginKey('eventHandler'),
        props: {
          handleClick(view, pos, event) { /* … */ },
          handleDoubleClick(view, pos, event) { /* … */ },
          handlePaste(view, event, slice) { /* … */ },
        },
      }),
    ]
  },
})

RangeError: Adding different instances of a keyed plugin (plugin$)