node.js - 如何在express中调试TypeError [ERR_INVALID_ARG_TYPE]？

Question

我使用express框架开发了一个简单的node js登录应用程序。这是我的文件结构:

• 垃圾箱
  • www
• Node 模块
• 路线
• 上传
• 观看次数
• app.js

当我尝试运行“npm start”时，它显示:

internal/modules/cjs/loader.js:631
    throw new ERR_INVALID_ARG_TYPE('id', 'string', id);
    ^

TypeError [ERR_INVALID_ARG_TYPE]: The "id" argument must be of type 
string. Received type object

什么原因导致这个错误？怎么解决呢？

这是错误堆栈:

13 verbose stack Error: nodeauth@0.0.0 start: `node ./bin/www`
TypeError [ERR_INVALID_ARG_TYPE]: The "id" argument must be of type string. Received type object
at Module.require (internal/modules/cjs/loader.js:631:11)
at require (internal/modules/cjs/helpers.js:22:18)
at Object.<anonymous> (/Users/jiatongli/Desktop/nodeauth/app.js:13:14)
at Module._compile (internal/modules/cjs/loader.js:689:30)
at Object.Module._extensions..js (internal/modules/cjs/loader.js:700:10)
at Module.load (internal/modules/cjs/loader.js:599:32)
at tryModuleLoad (internal/modules/cjs/loader.js:538:12)
at Function.Module._load (internal/modules/cjs/loader.js:530:3)
at Module.require (internal/modules/cjs/loader.js:637:17)
at require (internal/modules/cjs/helpers.js:22:18)

Answer 1

如果您声明 varexpress = require(express) 时不带单引号，可能会出现此错误。修改 varexpress = require('express');而不是 varexpress = require(express);