# FAQs

> Why do you set `package.json:build.packed` to `false` by default?

NW.js is not Electron. Using a zip file in NW.js, no matter as a separated `.nw` or combined with the executable, will require unzipping at every time the app launches, which results in a longer launch time, current working directory change and possibly slient crashes if unzipped path is longer than 255/260 characters.

If you want to reduce the amount of files, try using `webpack` or something like that to build sources, uglify and pack most node modules into bundles. `devDependencies` are ignored by `nwjs-builder-phoenix` automatically (so if a node module is supposed to be packed into bundles, e.g. native addons, make it a `dependency`).

Use the following code snippet to avoid packing `dependencies` into bundles.

```javascript
// webpack.config.js

const { dependencies } = require('./package.json');

const externals = {};
Object.keys(dependencies || {}).map((dependency) => {
    externals[dependency] = `commonjs2 ${ dependency }`;
});

module.exports = {
    // I think `electron-renderer` works well with NW.js projects.
    // If there is any better option, please tell me :)
    target: 'electron-renderer',
    externals,
};

```

> Icons on Windows?

* Prepare an `.png` file with 256x256 resolution, and use [iConvertIcons](https://iconverticons.com/online/) or something like that to generate ready-to-use `.ico` and `.icns`.
* Set `package.json:build.win.icon` to the path of the `.ico` file.
* Set `package.json:window.icon` to the path of a `.png` file.
* Save and build.

Windows Explorer might not reflect the changes immediately, if you have everything done and still see a default icon, check with something like Resource Hacker and restart Windows Explorer.

> Building for NSIS target takes a long time, what can I do?

Please follow [evshiron/nwjs-builder-phoenix#7](https://github.com/evshiron/nwjs-builder-phoenix/issues/7), before that you can add `--concurrent` to enable concurrent building, which should reduce time when building for multiple platforms.

> How can I use `nwjs-builder-phoenix` with Chrome Apps?

Simply add `--chrome-app` to the commandline arguments which enables support for Chrome Apps.

Also configurations should be set in `manifest.json` instead of `package.json` but within the same `build` property.

> What's `nsis` target? What's the difference between `nsis` and `nsis7z` targets?

`nsis` target will build NSIS installers (and updaters when `package.json:build.nsis.diffUpdaters` is `true`) for Windows.

`nsis7z` target will use `7za` to compress and [Nsis7z plug-in](http://nsis.sourceforge.net/Nsis7z_plug-in) to extract, instead of the built-in LZMA compression, resulting in a better and faster compression. But it doesn't list installed files, only a percentage indicating the progress of extraction when installing.

> `Error: ERROR_EXTRACTING archive = xxx`?

Remove the archive and try again. Usually it's because of the broken extracted `.tar`. If removing doesn't fix, feel free to post issues.