npm install --save-dev 后找不到模块伪造者

Question

I want to install all my modules locally so I am installing everything with the "--save-dev" switch which updates the package.json.

I am trying to include this module so I installed using this command:

npm install Faker --save-dev

My app structure is like this:

app controllers models node_modules Faker server.js

So Faker is in the right place but when I add this code in my server.js file:

var faker = require('./Faker');

I get the following error message:

Error: Cannot find module './Faker'
    at Function.Module._resolveFilename (module.js:338:15)
    at Function.Module._load (module.js:280:25)
    at Module.require (module.js:364:17)
    at require (module.js:380:17)
    at Object.<anonymous> (/Users/paulcowan/projects/async-talk/server.js:23:13)
    at Module._compile (module.js:456:26)
    at Object.Module._extensions..js (module.js:474:10)
    at Module.load (module.js:356:32)
    at Function.Module._load (module.js:312:12)
    at Function.Module.runMain (module.js:497:10) 

But this works:

var Faker = require('./node_modules/Faker');

I did not think that I would have to include the node_modules part.

Answer 1

After a yarn upgrade --latest I got this error for another reason: A 6.6.6 version has been published 13 days ago and it's totally empty ( only one commit called endgame ): https://www.npmjs.com/package/faker .

Is it a hack? Is it a joke? If yes, is it fun? Not sure...

To fix it simply rollback to the last version.

yarn add --dev faker@5.5.3
# or if you use npm
npm install --save-dev faker@5.5.3

Edit

Following the answer of akop below, the safest way seems to switch to faker-js

yarn remove faker
yarn add --dev @faker-js/faker

Then change your imports

import * as faker from 'faker';
// to 
import * as faker from '@faker-js/faker';

There is also a type definition for Typescript on their doc but it worked without for me: github.com/faker-js/faker

Answer 2

Faker (and colors ) was destroyed by the author. The reason is not totally clear.

You can use the version before the endgame-commit (5.5.3), as it already Jean Claveau described .
For the future, you should switch to the new community version, it is called fake-js . Have a look here: Github of new faker-js
There is also a faq, which also explains what happens to the old version.

Answer 3

I want to mention everyone why this problem happened.
The owner of faker deleted it from GitHub at v6.6.6
You can see that here:
https://github.com/marak/Faker.js/

So it is up to the community to complete it
The new repository:
https://github.com/faker-js/faker

This is the official, stable fork of Faker.

Installation

Please replace your faker dependency with @faker-js/faker .

npm install @faker-js/faker --save-dev

Node.js

const { faker } = require('@faker-js/faker');

Answer 4

Typescript users coming by, remember to install @types/faker . Then, import faker from 'faker'; works without errors.

Answer 5

To get your require to work, you need do:

var Faker = require('Faker');

Any package installed by npm is required by name. Only modules that are required locally need a path-like require. Your require(./Faker); means "require a module from the same directory as this file, called 'Faker'" .

Answer 6

Remove the ./ . You're telling Node to look for the module in the current directory.

var faker = require('Faker');

Answer 7

The latest version of faker is v7.3.0 .

You should import faker in this way:

import { faker } from '@faker-js/faker';

This one below doesn't work:

import faker from 'faker';

Answer 8

Genuine solution: Roll back to the previous version of the faker ie install the 5.5.3 or any lower version. It will work fine.

npm install faker @5.5.3

or

yarn install faker @5.5.3

NOTE: Faker has been changed to fakerjs so if you want to use latest version of faker please install it from fakerjs using the following command:~

npm i @faker-js/faker