找不到模块:错误:无法解析“/opt/lampp/htdocs/angular-testing-app/node_modules/jwa"中的“crypto" [英] Module not found: Error: Can't resolve 'crypto' in '/opt/lampp/htdocs/angular-testing-app/node_modules/jwa'

问题描述

我将在我的 angular6 项目 npm i jsonwebtoken 中安装 jsonwebtoken 模块.安装了 jsonwebtoken 模块依赖项 jwa，但是那个 index.js 文件加密需要错误 无法解析 'crypto'，但是我已经安装了加密模块.

请帮忙解决问题.

我的错误:

I will install jsonwebtoken module in my angular6 project npm i jsonwebtoken. The jsonwebtoken module Dependencies jwa installed, But that index.js file crypto require error Can't resolve 'crypto', But i already install crypto module.

Please help and clear the issue.

My error:

ERROR in ./node_modules/jwa/index.js
Module not found: Error: Can't resolve 'crypto' in '/opt/lampp/htdocs/angular-testing-app/node_modules/jwa'
ERROR in ./node_modules/jws/lib/sign-stream.js
Module not found: Error: Can't resolve 'stream' in '/opt/lampp/htdocs/angular-testing-app/node_modules/jws/lib'
ERROR in ./node_modules/jws/lib/verify-stream.js
Module not found: Error: Can't resolve 'stream' in '/opt/lampp/htdocs/angular-testing-app/node_modules/jws/lib'
ERROR in ./node_modules/jws/lib/data-stream.js
Module not found: Error: Can't resolve 'stream' in '/opt/lampp/htdocs/angular-testing-app/node_modules/jws/lib'

推荐答案

我遇到了和你一样的问题，我已经解决了.您可以按照以下步骤操作:

I faced the issue same as you and I resolved. You can follow these steps:

1. 将此文件添加到根目录

patch.js

const fs = require('fs');
const f = 'node_modules/@angular-devkit/build-angular/src/angular-cli-files/models/webpack-configs/browser.js';

fs.readFile(f, 'utf8', function (err,data) {
  if (err) {
    return console.log(err);
  }
  var result = data.replace(/node: false/g, 'node: {crypto: true, stream: true}');

  fs.writeFile(f, result, 'utf8', function (err) {
    if (err) return console.log(err);
  });
});

1. 将此命令添加到 package.json 文件

package.json

{...
  "scripts": {
    "postinstall": "node patch.js",
    ...
  }
}

参考:https://gist.github.com/niespodd/1fa82da6f8c901d1c376d29a7d

Reference: https://gist.github.com/niespodd/1fa82da6f8c901d1c33d2fcbb762947d

这篇关于找不到模块:错误:无法解析“/opt/lampp/htdocs/angular-testing-app/node_modules/jwa"中的“crypto"的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！