将MQTT别名添加到您的vite.config.js，如：

import { fileURLToPath, URL } from 'node:url'

import { defineConfig } from 'vite'
import vue from '@vitejs/plugin-vue'
import vueJsx from '@vitejs/plugin-vue-jsx'
import { config } from "dotenv";

// https://vitejs.dev/config/
export default defineConfig({
  plugins: [vue(), vueJsx(), config()],
  resolve: {
    alias: {
      '@': fileURLToPath(new URL('./src', import.meta.url)),
      mqtt: 'mqtt/dist/mqtt.js',
    }
  }
})