Cannot find module in Electron

Question

I am currently working on Electron with Babylon. I found this repo which I basically used as a boilerplate for my own project. Everything was working well until I tried to add jquery.pep.js for other needs. I keep on having this mistake :

Uncaught Error: Cannot find module 'jquery.pep.js'

I installed both libraries with "npm i -S jquery" and "npm i -S jquery.pep.js". In order to make jquery works, I added this script in the head of my index.html

<script> delete window.module; </script>

and this line in the top of my main.js :

window.$ = window.jQuery = require('jquery');

Now, jquery is working fine but for some reasons, jquery.pep.js module still can't be found. I tried to use 'require' but I have the same error

main.js

window.$ = window.jQuery = require('jquery'); 
var pep = require('jquery.pep.js');

Project structure

css/
img/
js/
-- main.js
node_modules/
index.html
index.js
package.json
renderer.js

Answer 1

You are requesting something and node is not able to find it. You can read this dedicated article on requiring modules in node, which explains it quite simply. Quoting:

When we require a 'find-me' module, without specifying a path:

require('find-me');

Node will look for find-me.js in all the paths specified by module.paths — in order.

$ node
> module.paths
[ '/Users/samer/learn-node/repl/node_modules',
  '/Users/samer/learn-node/node_modules',
  '/Users/samer/node_modules',
  '/Users/node_modules',
  '/node_modules',
  '/Users/samer/.node_modules',
  '/Users/samer/.node_libraries',
  '/usr/local/Cellar/node/7.7.1/lib/node' ]

The paths list is basically a list of node_modules directories under every directory from the current directory to the root directory. It also includes a few legacy directories whose use is not recommended.

If Node can’t find find-me.js in any of these paths, it will throw a “cannot find module error.”

~/learn-node $ node
> require('find-me')
Error: Cannot find module 'find-me'
    at Function.Module._resolveFilename (module.js:470:15)
    at Function.Module._load (module.js:418:25)
    at Module.require (module.js:498:17)
    at require (internal/module.js:20:19)
    at repl:1:1
    at ContextifyScript.Script.runInThisContext (vm.js:23:33)
    at REPLServer.defaultEval (repl.js:336:29)
    at bound (domain.js:280:14)
    at REPLServer.runBound [as eval] (domain.js:293:12)
    at REPLServer.onLine (repl.js:533:10)

Make sure you have your module installed somewhere in what node knows as module.paths, or reference the file by providing absolute path.