建设网站的3个必要条件灰色seo推广

操作系统：window和linux都会遇到

软件环境：v20.10.0的Nodejs

1、前端代码如下：

2、后端Nodejs

2.1、注册接口

2.2、上传接口

其中memoryUpload方法代码如下：

3、用页面上传文件

查看具体报错原因：

TypeError: source.on is not a functionat Function.create (D:\weichai\nodebase\app\sugar\node_modules\delayed-stream\lib\delayed_stream.js:33:10)at FormData.append (D:\weichai\nodebase\app\sugar\node_modules\combined-stream\lib\combined_stream.js:45:37)at FormData.append (D:\weichai\nodebase\app\sugar\node_modules\form-data\lib\form_data.js:74:3)at D:\weichai\nodebase\app\sugar\action\file.js:108:22at step (D:\weichai\nodebase\app\sugar\node_modules\tslib\tslib.js:143:27)at Object.next (D:\weichai\nodebase\app\sugar\node_modules\tslib\tslib.js:124:57)at fulfilled (D:\weichai\nodebase\app\sugar\node_modules\tslib\tslib.js:114:62)at bound (node:domain:432:15)at runBound (node:domain:443:12)at tryCatcher (D:\weichai\nodebase\node_modules\bluebird\js\release\util.js:16:23)at Promise._settlePromiseFromHandler (D:\weichai\nodebase\node_modules\bluebird\js\release\promise.js:547:31)at Promise._settlePromise (D:\weichai\nodebase\node_modules\bluebird\js\release\promise.js:604:18)at Promise._settlePromise0 (D:\weichai\nodebase\node_modules\bluebird\js\release\promise.js:649:10)at Promise._settlePromises (D:\weichai\nodebase\node_modules\bluebird\js\release\promise.js:729:18)at _drainQueueStep (D:\weichai\nodebase\node_modules\bluebird\js\release\async.js:93:12)at _drainQueue (D:\weichai\nodebase\node_modules\bluebird\js\release\async.js:86:9)at Async._drainQueues (D:\weichai\nodebase\node_modules\bluebird\js\release\async.js:102:5)at Async.drainQueues [as _onImmediate] (D:\weichai\nodebase\node_modules\bluebird\js\release\async.js:15:14)at process.processImmediate (node:internal/timers:478:21)at process.topLevelDomainCallback (node:domain:160:15)at process.callbackTrampoline (node:internal/async_hooks:128:24)

请问可以怎么解决这个问题呢？