Vue introduces wangeditor package error report?

there is no problem with the introduction and display of wangeditor, components installed by npm in vuecli, but when the server is packaged, it shows that there is no wangeditor,. I can package locally, but I will also report an error in packaging after I clone the git code to install dependencies, and I find that there is no him in packjson.

<template>
  <div id="wangeditor">
    <div
      ref="editorElem"
      style="text-align:left"
    ></div>
  </div>
</template>

<script>
import E from "wangeditor"
export default {
  name: "editorElem",
  data() {
    return {
      editorContent: "",
      uploading:
        process.env.baseUrl + "/anonVerify/account/file/wangEditorUpload",
      editor: null
    }
  },
  props: ["catchData", "content"], //
  created() {
    this.editorContent = this.content
    console.log(this.content)
  },
  watch: {
    content() {
      this.editor.txt.html(this.content)
    }
  },
  mounted() {
    this.editor = new E(this.$refs.editorElem) //

    this.editor.customConfig.onchange = html => {
      this.editorContent = html
      this.catchData(html) //htmlcatchData
    }
    this.editor.customConfig.uploadImgServer = this.uploading
    this.editor.customConfig.uploadFileName = "file"
    // editor.customConfig.uploadImgHeaders = {
    //   Accept: "*/*",
    //   Authorization: "Bearer " + token //token
    // }
    this.editor.customConfig.menus = [
      //
      "head",
      "list", // 
      "justify", // 
      "bold",
      "fontSize", // 
      "italic",
      "underline",
      "image", // 
      "foreColor", // 
      "undo", // 
      "redo" // 
    ]

    this.editor.create()
    console.log(this.content)

    this.editor.txt.html(this.content)
    //
    this.editor.customConfig.uploadImgHooks = {
      before: function(xhr, editor, files) {
        // 
        // xhr  XMLHttpRequst editor files 
        //  {prevent: true, msg: "xxxx"} 
        // return {
        //     prevent: true,
        //     msg: ""
        // }
      },
      success: function(xhr, editor, result) {
        // 
        // xhr  XMLHttpRequst editor result 
        this.imgUrl = Object.values(result.data).toString()
      },
      fail: function(xhr, editor, result) {
        // 
        // xhr  XMLHttpRequst editor result 
      },
      error: function(xhr, editor) {
        // 
        // xhr  XMLHttpRequst editor 
      },
      timeout: function(xhr, editor) {
        // 
        // xhr  XMLHttpRequst editor 
      },

      //  {errno:0, data: [...]} 
      //  JSON 
      customInsert: function(insertImg, result, editor) {
        // 
        // insertImg editor result 

        // : {url:"...."} :
        let url = Object.values(result.data) //result.data
        JSON.stringify(url) //JSON
        insertImg(url)
        // result  JSON 
      }
    }
  }
}
</script>