原因是在引入Element-Plus的顺序在vue之前导致，重新调整下他们的顺序后，问题解决。
import App from './App.vue'
import { setupI18n } from '/@/i18n'
import { setupRouter } from '/@/router'
import { setupStore } from '/@/store'
import bus from '/@/utils/bus' //消息总线
import ElementPlus, { ElMessage, ElMessageBox } from 'element-plus'
标签：core,6835,bundler,js,import,esm From： https://www.cnblogs.com/KhanLouis/p/17864744.html