Laravel Mix: Update a Node.js dependency - node.js

Question

I am trying to compile webpack configuration files with Laravel Mix.
Following webpack episode on Laracasts Vue 2 series,
// Scripts
"scripts": {
"dev": "node node_modules/cross-env/bin/cross-env.js NODE_ENV=development node_modules/webpack/bin/webpack.js --progress --hide-modules --config=node_modules/laravel-mix/setup/webpack.config.js"
},
....
// mix
mix.js('resources/assets/js/app.js', 'public/js')
.sass('resources/assets/sass/app.scss', 'public/css')
.version();
When I run $ npm run dev, I get an error:
npm ERR! Exit status 1
npm ERR! Failed at the # dev script 'node node_modules/cross-env/bin/cross-env.js NODE_ENV=development node_modules/webpack/bin/webpack.js --progress --hide-modules --config=node_modules/laravel-mix/setup/webpack.config.js'.
// Running
npm ERR! node v4.4.5
npm ERR! npm v2.15.5
// The error points to
let extractPlugin = new plugins.ExtractTextPlugin(
/Users/User/Code/project/node_modules/laravel-mix/setup/webpack.config.js:126
The issue seems to be update a Node.js dependency: https://github.com/JeffreyWay/laravel-mix/issues/264
How do I update the Node.js dependency?
I am trying:
$ brew upgrade node : Error = node not installed
$ node -v = 2.15.5
$ npm -v = 4.4.5
$ brew install node // installs but throws error
Error: The `brew link` step did not complete successfully
The formula built, but is not symlinked into /usr/local
Could not symlink bin/node
Target /usr/local/bin/node
already exists. You may want to remove it:
rm '/usr/local/bin/node'
To force the link and overwrite all conflicting files:
brew link --overwrite node
To list all files that would be deleted:
brew link --overwrite --dry-run node
Possible conflicting files are:
/usr/local/bin/node
...
**$ brew upgrade node // says node 7.5.0 already installed**
$ npm run dev // same error
$ node -v = 4.4.5
I also ran $ brew install node which installed, but I got an error:
Error: The brew link step did not complete successfully.
The formula built, but is not symlinked into /usr/local.
Could not symlink bin/node.
Target /usr/local/bin/node
already exists. You may want to remove it:
rm '/usr/local/bin/node'
To force the link and overwrite all conflicting files:
brew link --overwrite node
To list all files that would be deleted:
brew link --overwrite --dry-run node

Answer 1

you can delete your node modules folder in your laravel project.
after that run :
npm install - g npm
this command will reinstall the node modules folder with upgrading node files.
next, you can try and run
npm run dev
and you can also run
npm update
to update your node
hope this answer will help

Answer 2

Im Using Windows 10
You can Download NVM for node it stands for node version manager
after you set it up, type this to your cmd
nvm version
nvm install node {version of node you want}
nvm use {version of node}
hope this works for you
because it works for me

Answer 3

I installed Node.js again from nodejs.org, rewriting old files.
However this actually downgraded npm from 4.4.5 to 4.1.2... Node.js was 2.15.5 and is now 7.5.0.
I also had to install a few modules: $ npm install autoprefixer
$ npm run dev // works now