This package appears to require specially node9 on amazon linux?

[joepagan]

Having an issue with a couple of node packages that require node-scrypt on my amazon linux server.

This works fine on Macos 10.14.1 locally on other node versions.

It looks like scrypt requires at least node version 9 to higher, decided to look at NODE_MODULE_VERSION, 59 is node 9.

I get the following error on node 8.13.0 and similar on node6,7 & 11:

Error: The module '/var/www/site/shared/node_modules/truffle-hdwallet-provider/node_modules/scrypt/build/Release/scrypt.node'
was compiled against a different Node.js version using
NODE_MODULE_VERSION 57. This version of Node.js requires
NODE_MODULE_VERSION 59. Please try re-compiling or re-installing
the module (for instance, using `npm rebuild` or `npm install`).
    at Object.Module._extensions..node (internal/modules/cjs/loader.js:683:18)
    at Module.load (internal/modules/cjs/loader.js:566:32)
    at tryModuleLoad (internal/modules/cjs/loader.js:506:12)
    at Function.Module._load (internal/modules/cjs/loader.js:498:3)
    at Module.require (internal/modules/cjs/loader.js:598:17)
    at require (internal/modules/cjs/helpers.js:11:18)
    at Object.<anonymous> (/var/www/site/shared/node_modules/truffle-hdwallet-provider/node_modules/scrypt/index.js:3:20)
    at Module._compile (internal/modules/cjs/loader.js:654:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:665:10)
    at Module.load (internal/modules/cjs/loader.js:566:32)
    at tryModuleLoad (internal/modules/cjs/loader.js:506:12)
    at Function.Module._load (internal/modules/cjs/loader.js:498:3)
    at Module.require (internal/modules/cjs/loader.js:598:17)
    at require (internal/modules/cjs/helpers.js:11:18)
    at Object.<anonymous> (/var/www/site/shared/node_modules/truffle-hdwallet-provider/node_modules/scrypt.js/node.js:1:76)
    at Module._compile (internal/modules/cjs/loader.js:654:30)

node-gyp is installed globally

This appears to be a dependency of https://github.com/trufflesuite/truffle-hdwallet-provider & https://github.com/ethereum/web3.js/

I have rebuilt/installed several times after:

• I have runrm -rf node_modules/*, npm i --no-package-lock, incase my package-lock.json made on macos installed a different package.
• Added scypt and scrypt.js as project dependencies, then creating symlinks inside all the package dependencies that have a scrypt and scrypt.js dependency to node_modules/scrypt and node_modules/scrypt.js which doesn't actually resolve the issue. As suggested here: https://github.com/trufflesuite/ganache-cli/issues/134#issuecomment-269751088
• Tried to switch to different versions of node and have rebuilt my packages, node 6, node 7 & node 8 --lts all do the same:
• tried npm install --unsafe-perm --no-package-lock
• Changing /usr/bin/gcc to use a symlink to gcc44 instead of gcc48
• Installing scrypt globally

similar issue: https://github.com/trufflesuite/ganache-cli/issues/134

[imthatcarlos]

@joepagan Looks I'm having the same issue. Have you had any luck? This is the last leg of my 2-day-long AWS deployment

> node build/server.js --network ropsten --db staging

module.js:682
  return process.dlopen(module, path._makeLong(filename));
                 ^

Error: The module '/var/node_modules/web3/node_modules/scrypt/build/Release/scrypt.node'
was compiled against a different Node.js version using
NODE_MODULE_VERSION 64. This version of Node.js requires
NODE_MODULE_VERSION 57. Please try re-compiling or re-installing
the module (for instance, using `npm rebuild` or `npm install`).
    at Object.Module._extensions..node (module.js:682:18)
    at Module.load (module.js:566:32)
    at tryModuleLoad (module.js:506:12)
    at Function.Module._load (module.js:498:3)
    at Module.require (module.js:597:17)
    at require (internal/module.js:11:18)
    at Object.<anonymous> (/var/node_modules/web3/node_modules/scrypt/index.js:3:20)
    at Module._compile (module.js:653:30)
    at Object.Module._extensions..js (module.js:664:10)
    at Module.load (module.js:566:32)

[joepagan]

@imthatcarlos nope, my temp fix was to node9-ify my app. Luckily there wasn't too much to do in my case. For you it looks like you'd be downgrading though!

Specifically this was happening on Amazon Linux 1 for me, so it might be worth trying Amazon Linux 2? Or even try centos/alpine if you've got a container setup. (I'm not there yet with mine)

I was hoping that this issue might be addressed, though looking at the master branch, last commit was like 2 years ago so going to have to find another solution, or, maybe try get the ethereum devs to stop using this as a dependency.

[imthatcarlos]

Hmm.. Ok. I tried to include the package in my dependencies and realized you also did. Now, I've removed node_modules/ from my .ebignore file, and I'm getting a slew of other issues in the ec2 instance logs. Dealing now 😄

[imthatcarlos]

For reference, here's what I had to do:

• to deal with this original issue, I removed node_modules/ from .ebignore to include all my packages in the source zip for eb
• I included "bcrypt": "^3.0.2", and "scrypt": "^6.0.3" in my dependencies
• I saw errors in /var/log/eb-activity.log on my ec2 instance related to scrypt and bcrypt , so I decided to install both packages on the server during a elastic beanstalk post hook in .ebextensions/01_build.config:

files:
  "/opt/elasticbeanstalk/hooks/appdeploy/post/99_build_app.sh":
    mode: "000755"
    owner: root
    group: root
    content: |
      #!/usr/bin/env bash
      cd /var/app/current/
      rm -rf node_modules/bcrypt
      sudo /opt/elasticbeanstalk/node-install/node-v10.13.0-linux-x64/bin/npm install bcrypt@latest
      sudo /opt/elasticbeanstalk/node-install/node-v10.13.0-linux-x64/bin/npm install scrypt@latest

• I then saw errors in regarding missing files in some packages, one being truffle-hdwallet-provider:

Error: Cannot find module '../contracts/GlobalRegistrar.json'
    at Function.Module._resolveFilename (internal/modules/cjs/loader.js:580:15)
    at Function.Module._load (internal/modules/cjs/loader.js:506:25)
    at Module.require (internal/modules/cjs/loader.js:636:17)
    at require (internal/modules/cjs/helpers.js:20:18)
    at Object.<anonymous> (/var/app/current/node_modules/truffle-hdwallet-provider/node_modules/web3/lib/web3/namereg.js:23:26)

• And they were indeed missing (still not sure why), so I manually moved them to the server:

scp -rp -i /Users/carlos/.ssh/aws-eb ./node_modules/truffle-hdwallet-provider/node_modules/web3/lib/contracts/ ec2-user@ip:/usr/...

Had to do that last step for truffle-contract and web3-eth-ens. Deploying this dapp to EB has been a bit of a headache 😓

[joepagan]

Jesus, don't understand why you're getting behaviour like that, very strange, what a nightmare!

Grateful that you have posted the steps, very much appreciated, thank you. I did want to EB mine too so I'll try follow these steps and see if I get any luck on node10 EB.

[imthatcarlos]

Sure thing, let me know how it goes!