npm 包有依赖错误，即使在我手动安装它们之后

Posted 2023-03-13

【中文标题】npm 包有依赖错误，即使在我手动安装它们之后

【英文标题】：npm package has dependency errors, even after I manually install them

【发布时间】：2019-06-13 14:52:07

【问题描述】：

我正在尝试在我的 Angular Web 应用程序中使用来自 NPM 的 Imgur package。安装后，一切似乎都很好。即使在导入之后。但是，一旦使用包初始化变量，我就会收到编译错误，声称我的代码中存在解析错误，例如“加密”。 NPM 版本：5.6.0 角度版本：6.2.9

您知道是什么原因导致了这个问题吗？关于如何修复它的任何想法？

我尝试安装看似丢失的包，但当我再次尝试编译时，它们仍然被视为丢失。 我还尝试将我的节点版本降级到旧版本，但无济于事。 也没有删除我的 node_modules 并重新安装它们。

这是我在打字稿中用来初始化模块的代码：

import  Component, OnInit  from '@angular/core';
import * as Convert from 'color-convert';
import * as Hex from 'hex2dec';
import * as ClarifaiSVC from '../clarifai_service/clarifai.service';
import * as Imgur from 'imgur';

@Component(
    selector: 'app-imagery',
    templateUrl: './imagery.component.html',
    styleUrls: ['./imagery.component.css']
)

export class ImageryComponent implements OnInit 

    constructor(private Clarifai: ClarifaiSVC.ClarifaiService, private Imgur: Imgur)  

这是服务后 npm 日志中的内容：

ERROR in ./node_modules/aws-sign2/index.js
Module not found: Error: Can't resolve 'crypto' in 'C:\Users\Gilian\Documents\School\3EA2_18-19\Internet Of Things\src\dashboard\dashboard\node_modules\aws-sign2'ERROR in ./node_modules/aws4/aws4.js
Module not found: Error: Can't resolve 'crypto' in 'C:\Users\Gilian\Documents\School\3EA2_18-19\Internet Of Things\src\dashboard\dashboard\node_modules\aws4'
ERROR in ./node_modules/ecc-jsbn/index.js
Module not found: Error: Can't resolve 'crypto' in 'C:\Users\Gilian\Documents\School\3EA2_18-19\Internet Of Things\src\dashboard\dashboard\node_modules\ecc-jsbn'
ERROR in ./node_modules/http-signature/lib/verify.js
Module not found: Error: Can't resolve 'crypto' in 'C:\Users\Gilian\Documents\School\3EA2_18-19\Internet Of Things\src\dashboard\dashboard\node_modules\http-signature\lib'
ERROR in ./node_modules/http-signature/lib/signer.js
Module not found: Error: Can't resolve 'crypto' in 'C:\Users\Gilian\Documents\School\3EA2_18-19\Internet Of Things\src\dashboard\dashboard\node_modules\http-signature\lib'
ERROR in ./node_modules/oauth-sign/index.js
Module not found: Error: Can't resolve 'crypto' in 'C:\Users\Gilian\Documents\School\3EA2_18-19\Internet Of Things\src\dashboard\dashboard\node_modules\oauth-sign'
ERROR in ./node_modules/request/lib/oauth.js
Module not found: Error: Can't resolve 'crypto' in 'C:\Users\Gilian\Documents\School\3EA2_18-19\Internet Of Things\src\dashboard\dashboard\node_modules\request\lib'
ERROR in ./node_modules/request/lib/helpers.js
Module not found: Error: Can't resolve 'crypto' in 'C:\Users\Gilian\Documents\School\3EA2_18-19\Internet Of Things\src\dashboard\dashboard\node_modules\request\lib'
ERROR in ./node_modules/request/lib/hawk.js
Module not found: Error: Can't resolve 'crypto' in 'C:\Users\Gilian\Documents\School\3EA2_18-19\Internet Of Things\src\dashboard\dashboard\node_modules\request\lib'
ERROR in ./node_modules/sshpk/lib/identity.js
Module not found: Error: Can't resolve 'crypto' in 'C:\Users\Gilian\Documents\School\3EA2_18-19\Internet Of Things\src\dashboard\dashboard\node_modules\sshpk\lib'ERROR in ./node_modules/sshpk/lib/utils.js
ERROR in ./node_modules/sshpk/lib/formats/openssh-cert.js
Module not found: Error: Can't resolve 'crypto' in 'C:\Users\Gilian\Documents\School\3EA2_18-19\Internet Of Things\src\dashboard\dashboard\node_modules\sshpk\lib\formats'
ERROR in ./node_modules/sshpk/lib/formats/ssh-private.js
Module not found: Error: Can't resolve 'crypto' in 'C:\Users\Gilian\Documents\School\3EA2_18-19\Internet Of Things\src\dashboard\dashboard\node_modules\sshpk\lib\formats'
ERROR in ./node_modules/fs.realpath/old.js
Module not found: Error: Can't resolve 'fs' in 'C:\Users\Gilian\Documents\School\3EA2_18-19\Internet Of Things\src\dashboard\dashboard\node_modules\fs.realpath'
ERROR in ./node_modules/request/lib/har.js
Module not found: Error: Can't resolve 'fs' in 'C:\Users\Gilian\Documents\School\3EA2_18-19\Internet Of Things\src\dashboard\dashboard\node_modules\request\lib'
ERROR in ./node_modules/tunnel-agent/index.js
Module not found: Error: Can't resolve 'http' in 'C:\Users\Gilian\Documents\School\3EA2_18-19\Internet Of Things\src\dashboard\dashboard\node_modules\tunnel-agent'
ERROR in ./node_modules/forever-agent/index.js
Module not found: Error: Can't resolve 'https' in 'C:\Users\Gilian\Documents\School\3EA2_18-19\Internet Of Things\src\dashboard\dashboard\node_modules\forever-agent'
ERROR in ./node_modules/request/request.js
Module not found: Error: Can't resolve 'https' in 'C:\Users\Gilian\Documents\School\3EA2_18-19\Internet Of Things\src\dashboard\dashboard\node_modules\request'
--------------------------------------------


--------------------------------------------
This just goes on for a while
--------------------------------------------


--------------------------------------------
ERROR in ./node_modules/request/request.js
Module not found: Error: Can't resolve 'stream' in 'C:\Users\Gilian\Documents\School\3EA2_18-19\Internet Of Things\src\dashboard\dashboard\node_modules\request'
ERROR in ./node_modules/sshpk/lib/ed-compat.js
Module not found: Error: Can't resolve 'stream' in 'C:\Users\Gilian\Documents\School\3EA2_18-19\Internet Of Things\src\dashboard\dashboard\node_modules\sshpk\lib'ERROR in ./node_modules/request/request.js
Module not found: Error: Can't resolve 'zlib' in 'C:\Users\Gilian\Documents\School\3EA2_18-19\Internet Of Things\src\dashboard\dashboard

【问题讨论】：

您可以尝试删除您的 node_modules 并尝试再次运行npm install。

@Abhishek 我刚试过，还是一样

我相应地编辑了问题

您使用的是哪个版本的 Node.js？

@laptou 我在节点版本 8.11.2

【参考方案1】：

Crypto is a built-in Node.js module。它不是普通的 javascript。

imgur 模块不是为在 Web 浏览器中运行而设计的，因此它不适用于 Angular。它依赖于很多 Node.js 特定的 API（例如文件写入）。

【讨论】：

这似乎很奇怪，因为它专门提供了使用模块编写 javascript 应用程序的示例。

@MyNameIsGuzse — 为什么 Node.js 的模块使用 JavaScript 很奇怪？ Node.js 的全部意义在于它运行用 JavaScript 编写的程序。

我想我几乎没见过 javascript 在 Web 开发之外使用。这确实意味着我有一个问题，因为我不知道如何单独通过打字稿连接到 imgur API...

我用谷歌搜索了 imgur api，this 是第一个点击。那里有一个指向 Example HTML5/JavaScript app 的链接。

【参考方案2】：

您的安装似乎已损坏。最好的方法是手动删除node_modules 文件夹并重新运行 npm install。这应该在全新安装后工作。

【讨论】：

我刚刚做了，但我仍然得到同样的错误。我应该将此添加到原始帖子中。

【参考方案3】：

请删除node_modules 并再次运行npm install...

除了imgur，你还必须安装它的类型。

npm install @types/imgur

【讨论】：

并且不要忘记在删除node_modules目录后运行npm cache clean -f。

我刚试过，重新安装 node_modules 没有帮助。尝试安装@types/imgur 时，我得到404 Not Found: @types/imgur@latest

@kav 清理缓存后，我根本无法重新安装 node_modules。现在我收到一个错误，上面写着npm ERR! cb() never called! npm ERR! This is an error with npm itself. Please report this error at: npm ERR! <https://github.com/npm/npm/issues>