PS E:\hgm\vue-admin\vue-element-admin> npm -v
6.14.16
PS E:\hgm\vue-admin\vue-element-admin> node -v
v14.19.1

#Настройте npm как зеркало Taobao
npm config set registry https://registry.npm.taobao.org
#Проверяем правильность конфигурации
npm config get registry

# Клонировать проект
git clone https://github.com/PanJiaChen/vue-element-admin.git

npm install --save @toast-ui/vue-editor

npm install 

<template>
  <div :id="id" />
</template>

<script>
// deps for editor
import 'codemirror/lib/codemirror.css' // codemirror
// Закомментируйте старую версию
//import 'tui-editor/dist/tui-editor.css' // editor ui
//import 'tui-editor/dist/tui-editor-contents.css' 
// editor content
//import Editor from '@tui-editor' 
//Заменяем новым
import '@toast-ui/editor/dist/toastui-editor.css';
import Editor from '@toast-ui/vue-editor'
import defaultOptions from './default-options'

export default {
  name: 'MarkdownEditor',
  props: {
    value: {
      type: String,
      default: ''
    },
    id: {
      type: String,
      required: false,
      default() {
        return 'markdown-editor-' + +new Date() + ((Math.random() * 1000).toFixed(0) + '')
      }
    },
    options: {
      type: Object,
      default() {
        return defaultOptions
      }
    },
    mode: {
      type: String,
      default: 'markdown'
    },
    height: {
      type: String,
      required: false,
      default: '300px'
    },
    language: {
      type: String,
      required: false,
      default: 'en_US' // https://github.com/nhnent/tui.editor/tree/master/src/js/langs
    }
  },
  data() {
    return {
      editor: null
    }
  },
  computed: {
    editorOptions() {
      const options = Object.assign({}, defaultOptions, this.options)
      options.initialEditType = this.mode
      options.height = this.height
      options.language = this.language
      return options
    }
  },
  watch: {
    value(newValue, preValue) {
      if (newValue !== preValue && newValue !== this.editor.getMarkdown()) {
        this.editor.setMarkdown(newValue)
      }
    },
    language(val) {
      this.destroyEditor()
      this.initEditor()
    },
    height(newValue) {
      this.editor.height(newValue)
    },
    mode(newValue) {
      this.editor.changeMode(newValue)
    }
  },
  mounted() {
    this.initEditor()
  },
  destroyed() {
    this.destroyEditor()
  },
  methods: {
    initEditor() {
      this.editor = new Editor({
        el: document.getElementById(this.id),
        ...this.editorOptions
      })
      if (this.value) {
        this.editor.setMarkdown(this.value)
      }
      this.editor.on('change', () => {
        this.$emit('input', this.editor.getMarkdown())
      })
    },
    destroyEditor() {
      if (!this.editor) return
      this.editor.off('change')
      this.editor.remove()
    },
    setMarkdown(value) {
      this.editor.setMarkdown(value)
    },
    getMarkdown() {
      return this.editor.getMarkdown()
    },
    setHtml(value) {
      this.editor.setHtml(value)
    },
    getHtml() {
      return this.editor.getHtml()
    }
  }
}
</script>

import '@toast-ui/editor/dist/toastui-editor.css';
import Editor from '@toast-ui/vue-editor'

npm run dev