Electron-packager: cannot find module

Question

I trying to package my app using electron-Packager and this command:

electron-packager . FooBar --platform=darwin --arch=x64 --version=0.36.9

(I'm using MacOsx) the app is created but when I run it I get a pop-up showing this:

Uncaught Exception:

Error: Cannot find module '/Users/myUser/myApp/FooBar-darwin-x64/FooBar.app/Contents/Resources/app/app:/host/menu.html'
    at Function.Module._resolveFilename (module.js:338:15)
    at Function.Module._load (module.js:289:25)
    at Object.<anonymous> (/Users/myUser/myApp/FooBar-darwin-x64/FooBar.app/Contents/Resources/atom.asar/browser/lib/init.js:158:8)
    at Module._compile (module.js:425:26)
    at Object.Module._extensions..js (module.js:432:10)
    at Module.load (module.js:356:32)
    at Function.Module._load (module.js:313:12)
    at Function.Module.runMain (module.js:457:10)
    at startup (node.js:151:18)
    at node.js:1007:3

in this folder : "/Users/myUser/myApp/FooBar-darwin-x64/FooBar.app/Contents/Resources/app" there is the entry pointing html file "menu.html", but it seems electron cannot find it...

this is my app.js:

var app = require('app');  // Module to control application life.
var BrowserWindow = require('browser-window');  // Module to create native browser window.

var mainWindow = null;


// This method will be called when Electron has done everything
// initialization and ready for creating browser windows.
app.on('ready', function() {

  // Create the browser window.
  mainWindow = new BrowserWindow({width: 1024, height: 768});

  // and load the index.html of the app.
  mainWindow.loadUrl('file://' + __dirname + '/menu.html');

  mainWindow.openDevTools({detach: true});

  // Emitted when the window is closed.
  mainWindow.on('closed', function() {
    mainWindow = null;
  });

});

Do you have any ideas on what could be the problem?

Thank you.

score 27 · Accepted Answer · answered Feb 29 '16 at 03:27

27

Two things you can try:

Make sure every node modules that you need to run on production build added into dependencies in package.json. E.g: npm install <module_name> --save
How does it work when --asar=false (More info at https://github.com/electron-userland/electron-packager)

answered Feb 29 '16 at 03:27

phuongle

1,166
11
17

Thanks , there was a mistake in package.json file – navy1978 Mar 19 '16 at 08:01
3

I've switched my `devDependencies` to `dependencies` and it seems to be working! – Yann Bertrand Jun 02 '16 at 14:39
6

For me, I had to specify `"main": "./dist/main.js"` in `package.json` because it was trying to find `index.js` which is probably the default value. I started the project in typescript with `electron-quick-start-typscript`. – user627283 May 28 '18 at 18:56

score 4 · Answer 2 · answered Jan 07 '18 at 19:32

4

For me the problem was that the module dependencies were listed in "devDependencies" in package.json

Moving them to "dependencies" and running npm install again solved the problem.

answered Jan 07 '18 at 19:32

LachoTomov

3,312
30
42

score 4 · Answer 3 · answered Aug 09 '18 at 04:58

4

So i had this same problem. Mine got solved when i cd in to my project folder and did

npm i -D electron@latest

Sometimes adding in package.json and npm install would not have installed it properly. Please lemme know if it worked for you.

answered Aug 09 '18 at 04:58

Shan

613
9
21

score 1 · Answer 4 · edited Apr 10 '19 at 15:45

1

what worked for me was modifying the reference to the main application file ie : main.js for newer electron versions or app.js for old versions of electron in package.json as follows :

"main": "app.js"

edited Apr 10 '19 at 15:45

Zoe

27,060
21
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answered Apr 09 '19 at 03:53

Ahmed Maher

1,521
17
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score 1 · Answer 5 · answered Nov 13 '22 at 02:10

1

What worked for me was whatever dependency you are trying to install, instead of having --save-dev just use --save

answered Nov 13 '22 at 02:10

Gerald Vidal

45
1
5

score 0 · Answer 6 · answered Jun 03 '21 at 12:37

0

For me, I had to rebuild the electron app. Working with Ionic, first delete the /electron folder, then run:

npx cap add electron

answered Jun 03 '21 at 12:37

Cedric Ipkiss

5,662
2
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Electron-packager: cannot find module

6 Answers6