node.bcrypt.js: Error: invalid ELF header

I am trying to deploy my REST API to heroku. Although, the application is working on my computer, it is not working on heroku. In the application log, i got this

Process exited with status 1
2019-09-23T01:09:55.744676+00:00 heroku[web.1]: Starting process with command `node server.js`
2019-09-23T01:09:58.446510+00:00 heroku[web.1]: Process exited with status 1
2019-09-23T01:09:58.468276+00:00 heroku[web.1]: State changed from starting to crashed
2019-09-23T01:09:58.370869+00:00 app[web.1]: internal/modules/cjs/loader.js:807
2019-09-23T01:09:58.370888+00:00 app[web.1]: return process.dlopen(module, path.toNamespacedPath(filename));
2019-09-23T01:09:58.370890+00:00 app[web.1]: ^
2019-09-23T01:09:58.370892+00:00 app[web.1]: 
2019-09-23T01:09:58.370894+00:00 app[web.1]: Error: /app/node_modules/bcrypt/lib/binding/bcrypt_lib.node: invalid ELF header
2019-09-23T01:09:58.370896+00:00 app[web.1]: at Object.Module._extensions..node (internal/modules/cjs/loader.js:807:18)
2019-09-23T01:09:58.370898+00:00 app[web.1]: at Module.load (internal/modules/cjs/loader.js:653:32)
2019-09-23T01:09:58.370900+00:00 app[web.1]: at tryModuleLoad (internal/modules/cjs/loader.js:593:12)
2019-09-23T01:09:58.370902+00:00 app[web.1]: at Function.Module._load (internal/modules/cjs/loader.js:585:3)
2019-09-23T01:09:58.370904+00:00 app[web.1]: at Module.require (internal/modules/cjs/loader.js:692:17)
2019-09-23T01:09:58.370906+00:00 app[web.1]: at require (internal/modules/cjs/helpers.js:25:18)
2019-09-23T01:09:58.370909+00:00 app[web.1]: at Object.<anonymous> (/app/node_modules/bcrypt/bcrypt.js:6:16)
2019-09-23T01:09:58.370910+00:00 app[web.1]: at Module._compile (internal/modules/cjs/loader.js:778:30)
2019-09-23T01:09:58.370912+00:00 app[web.1]: at Object.Module._extensions..js (internal/modules/cjs/loader.js:789:10)
2019-09-23T01:09:58.370915+00:00 app[web.1]: at Module.load (internal/modules/cjs/loader.js:653:32)
2019-09-23T01:09:58.370917+00:00 app[web.1]: at tryModuleLoad (internal/modules/cjs/loader.js:593:12)
2019-09-23T01:09:58.370919+00:00 app[web.1]: at Function.Module._load (internal/modules/cjs/loader.js:585:3)
2019-09-23T01:09:58.370921+00:00 app[web.1]: at Module.require (internal/modules/cjs/loader.js:692:17)
2019-09-23T01:09:58.370923+00:00 app[web.1]: at require (internal/modules/cjs/helpers.js:25:18)
2019-09-23T01:09:58.370924+00:00 app[web.1]: at Object.<anonymous> (/app/routes/auth.js:6:16)
2019-09-23T01:09:58.370926+00:00 app[web.1]: at Module._compile (internal/modules/cjs/loader.js:778:30)

This seems to have something to do with bcrypt module. I tried the solutions suggested here: https://github.com/kelektiv/node.bcrypt.js/issues/595 and https://github.com/kelektiv/node.bcrypt.js/issues/635

such as: npm rebuild bcrypt --build-from-source

here is package.json file:

{
  "name": "server",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "keywords": [],
  "author": "",
  "license": "ISC",
  "dependencies": {
    "bcrypt": "^3.0.6",
    "body-parser": "^1.18.3",
    "cors": "^2.8.4",
    "cron": "^1.7.2",
    "express": "^4.16.3",
    "jsonwebtoken": "^8.3.0",
    "jwt-simple": "^0.5.6",
    "mapnik": "^4.3.1",
    "mkdirp": "^0.5.1",
    "mongoose": "^5.7.1",
    "multer": "^1.4.1",
    "nodemailer": "^6.3.0",
    "request": "^2.88.0",
    "ug": "0.0.8"
  }
}

I have node v10.16.3 and I am running MacOS v10.14.6

None of those solutions worked for me! Is the problem has to do with bcrypt or heroku? How can I solve this problem?

About this issue

Original URL
State: closed
Created 5 years ago
Reactions: 4
Comments: 16

Most upvoted comments

Alternatively, you can use bcryptjs 🤷

+39

dpkshrma on Dec 13, 2020

For those using bcrypt with docker container:

Create .dockerignore file and add inside .dockerignore the following line:

node_modules

+38

cooervo on Mar 16, 2020

Node modules will automatically be created upon npm install. This is done automatically by heroku.

To setup your gitignore, create a file called ‘.gitignore’ and add ‘node_modules’ to it. Delete the directory as well if you are checking them into your repository

On Tue, 24 Sep, 2019, 5:00 am Abdulaziz, notifications@github.com wrote:

@agathver https://github.com/agathver Setup your gitignore properly to exclude node_modules ignoring node_modules in gitignore would not have any effects on other dependencies? If not, how eactly can I set up my “gitignore properly to exclude node_modules”?

— You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub https://github.com/kelektiv/node.bcrypt.js/issues/755?email_source=notifications&email_token=AEAJUT7XNORK7WAIAWKSK3DQLFGSLA5CNFSM4IZNMM4KYY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOD7MSKKY#issuecomment-534324523, or mute the thread https://github.com/notifications/unsubscribe-auth/AEAJUT3NIR3KZGCROYYUR63QLFGSLANCNFSM4IZNMM4A .

+12

recrsn on Sep 24, 2019

You are pushing compiled bcrypt binaries to heroku (which is linux). Trying to load macOS binaries in Linux will give that error. Setup your gitignore properly to exclude node_modules

recrsn on Sep 23, 2019

I think you can solve the problem by simply removing the bcrypt dependency from your package.json file (this file is in the root folder of your node project and you just need to delete the line "bcrypt": "version",), this prevents the npm install command from installing the bcrypt library, so you just need to add the instruction to install bcrypt, adding the following line just after running npm install

RUN npm i bcrypt

Ensure you are in the correct folder

carlosyenh on Jun 21, 2020

There is a simple way that allowed me to solve this problem:

1. Uninstall bcrypt npm uninstall bcrypt

2.- Install bcrypt again npm i bcrypt

The error occurs because when you install bcypt, npm installs the recommended version for your machine and operating system, but when you are on another machine, this doesn’t work

carlosyenh on Jun 18, 2020

When I commented all the lines of code that has something to do with bcrypt then deployed it again, it worked. This means the problem is definitely has something to do with bcrypt.

program-om on Sep 23, 2019

Alternatively, you can use bcryptjs 🤷

I love you

Great62 on Feb 22, 2022

There is a simple way that allowed me to solve this problem:

1. Uninstall bcrypt npm uninstall bcrypt

2.- Install bcrypt again npm i bcrypt

The error occurs because when you install bcypt, npm installs the recommended version for your machine and operating system, but when you are on another machine, this doesn’t work

I am still facing the issue with docker. could you please help me out. As i have already .dockerignore file and tried your method but does’t work for me. thanks

ZohaibD on Jun 21, 2020

I just removed node_module directory from github then pushed modifications on heroku. That fixed my problem. Thanks to @agathver

pacyL2K19 on May 17, 2020

@agathver Setup your gitignore properly to exclude node_modules ignoring node_modules in gitignore would not have any effects on other dependencies? If not, how eactly can I set up my “gitignore properly to exclude node_modules”?

program-om on Sep 23, 2019