aws lambda - ES6模块错误：在ES模块作用域中未定义模块。

【以下的问题经过翻译处理】 基于以下资源：

https://aws.amazon.com/about-aws/whats-new/2022/01/aws-lambda-es-modules-top-level-await-node-js-14/ https://aws.amazon.com/blogs/compute/using-node-js-es-modules-and-top-level-await-in-aws-lambda/

很明显，aws nodejs 14.x 现在支持ES6模块。

但是，当我运行带有ES6模块的nodejs应用程序时，我会遇到以下错误：

undefined   ERROR   Uncaught Exception  
{
    "errorType": "ReferenceError",
    "errorMessage": "module is not defined in ES module scope\nThis file is being treated as an ES module because it has a '.js' file extension and '/var/task/package.json' contains \"type\": \"module\". To treat it as a CommonJS script, rename it to use the '.cjs' file extension.",
    "stack": [
        "ReferenceError: module is not defined in ES module scope",
        "This file is being treated as an ES module because it has a '.js' file extension and '/var/task/package.json' contains \"type\": \"module\". To treat it as a CommonJS script, rename it to use the '.cjs' file extension.",
        "    at file:///var/task/index.js:20:1",
        "    at ModuleJob.run (internal/modules/esm/module_job.js:183:25)",
        "    at process.runNextTicks [as _tickCallback] (internal/process/task_queues.js:60:5)",
        "    at /var/runtime/deasync.js:23:15",
        "    at _tryAwaitImport (/var/runtime/UserFunction.js:74:12)",
        "    at _tryRequire (/var/runtime/UserFunction.js:162:21)",
        "    at _loadUserApp (/var/runtime/UserFunction.js:197:12)",
        "    at Object.module.exports.load (/var/runtime/UserFunction.js:242:17)",
        "    at Object.<anonymous> (/var/runtime/index.js:43:30)",
        "    at Module._compile (internal/modules/cjs/loader.js:1085:14)"
    ]
}

我已经在package.json中添加了 "type": "module"。

package.json

{
  "name": "autoprocess",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "type": "module",
  "scripts": {
    
  },
  "author": "",
  "license": "ISC",
  "dependencies": {
    "@aws-sdk/client-sqs": "^3.41.0",
    "aws-sdk": "^2.1030.0",
    "check-if-word": "^1.2.1",
    "express": "^4.17.1",
    "franc": "^6.0.0",
    "is-html": "^3.0.0",
    "nodemon": "^2.0.15"
  }
}

index.json

'use strict';

import StringMessage from  './StringMessage.js';

module.exports.handler = async (event) => {
   var data = JSON.parse(event.body);
    //other code goes here

   let response = {
      statusCode: 200,
      headers: {          
      },
      body: ""
  };
  console.log("response: " + JSON.stringify(response))
  return response;
};

我也尝试了将"module.exports.handler"替换为 "exports.handler "，但也生效。错误信息是 "exports is not defined in ES module scope" 。 另外我是用zip文件来上传代码的。

我哪里做的有问题呢？