Scrypt issue while running on Windows

[LogvinovLeon]

Sometimes when you try running 0x-launch-kit on Windows you'll get an error like this:

Error: Cannot find module './build/Release/scrypt'
    at Function.Module._resolveFilename (internal/modules/cjs/loader.js:603:15)
    at Function.Module._load (internal/modules/cjs/loader.js:529:25)
    at Module.require (internal/modules/cjs/loader.js:658:17)
    at require (internal/modules/cjs/helpers.js:22:18)
    at Object.<anonymous> (C:\Users\leonidlogvinov\0x-launch-kit\node_modules\scrypt\index.js:3:20)
    at Module._compile (internal/modules/cjs/loader.js:722:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:733:10)
    at Module.load (internal/modules/cjs/loader.js:620:32)
    at tryModuleLoad (internal/modules/cjs/loader.js:560:12)
    at Function.Module._load (internal/modules/cjs/loader.js:552:3)
error Command failed with exit code 1.
info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command.

We are aware of that problem but it seems to stem from one of our dependencies, and is an issue shared across many Ethereum dev tools.

Here is the list of issues on other projects related to it that might help you resolve it:

• blockTime > 2 causes contract code not be stored; --allowUnlimitedContractSize has no effect; trufflesuite/ganache#134
• Wrong gas estimation trufflesuite/ganache#151
• Installs but no "Release" folder barrysteyn/node-scrypt#108 (comment)
• Error: Cannot find module './build/Release/scrypt' when running aragon init aragon/aragon-cli#225
• Embark Demo and cannot find module error embarklabs/embark#509

[sudhiryadav]

change this line require("./build/Release/scrypt") to require("scrypt") from '/node_modules/scrypt/index.js'

[voomdex]

change this line require("./build/Release/scrypt") to require("scrypt") from '/node_modules/scrypt/index.js'

which files to edit ? explain more please

[sudhiryadav]

change this line require("./build/Release/scrypt") to require("scrypt") from '/node_modules/scrypt/index.js'

which files to edit ? explain more please

The file path as mentioned is inside /node_modules/scrypt folder. Edit the file index.js inside that folder. Find that line and change it accordingly.