Laravel: npm run watch Error - node.js

Question

I was working on a project and I run 'npm run watch'
and I got this error. I was working normally but all of sudden I got this error!
> # watch C:\projects\tests\blog
> node node_modules/cross-env/dist/bin/cross-env.js NODE_ENV=development
node_modules/webpack/bin/webpack.js --watch --progress --hide-modules --
config=node_modules/laravel-mix/setup/webpack.config.js
undefined:1
SyntaxError: Unexpected token
npm ERR! Windows_NT 10.0.14393
npm ERR! argv "C:\\Program Files\\nodejs\\node.exe"
"C:\\Users\\Bruno\\AppData\\Roaming\\npm\\node_modules\\npm\\bin\\npm-cli.js" "run" "watch"
npm ERR! node v6.10.0
npm ERR! npm v4.3.0
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! # watch: `node node_modules/cross-env/dist/bin/cross-env.js
NODE_ENV=development node_modules/webpack/bin/webpack.js --watch --progress --hide-modules --config=node_modules/laravel-mix/setup/webpack.config.js`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the # watch script 'node node_modules/cross- env/dist/bin/cross-env.js NODE_ENV=development node_modules/webpack/bin/webpack.js --watch --progress --hide-modules --config=node_modules/laravel-mix/setup/webpack.config.js'.
npm ERR! Make sure you have the latest version of node.js and npm installed.
npm ERR! If you do, this is most likely a problem with the package,
npm ERR! not with npm itself.
npm ERR! Tell the author that this fails on your system:
npm ERR! node node_modules/cross-env/dist/bin/cross-env.js
NODE_ENV=development node_modules/webpack/bin/webpack.js --watch --progress --hide-modules --config=node_modules/laravel-mix/setup/webpack.config.js
npm ERR! You can get information on how to open an issue for this project with:
npm ERR! npm bugs
npm ERR! Or if that isn't available, you can get their info via:
npm ERR! npm owner ls
npm ERR! There is likely additional logging output above.
npm ERR! Please include the following file with any support request:
npm ERR! C:\Users\Bruno\AppData\Roaming\npm-cache\_logs\2017-03-20T13_06_27_111Z-debug.log
What should I do?

Answer 1

If you are developing on a Windows system or you are running your VM on a Windows host system, you may need to run the npm install command with the --no-bin-links switch enabled:
Install using this command:
npm install --no-bin-links
And run this after:
npm run watch-poll
Source for 5.4
Source for <= 5.3

Answer 2

I just simply deleted built CSS and JS files as well as the mix-manifest.json file. Things worked afterwards

Answer 3

For me just deleted the mix-manifest.json file. Then did npm run watch-poll
My package.json script.
"scripts": {
"dev": "node node_modules/cross-env/dist/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",
"watch": "node node_modules/cross-env/dist/bin/cross-env.js NODE_ENV=development node_modules/webpack/bin/webpack.js --watch --progress --hide-modules --config=node_modules/laravel-mix/setup/webpack.config.js",
"watch-poll": "node node_modules/cross-env/dist/bin/cross-env.js NODE_ENV=development node_modules/webpack/bin/webpack.js --watch --watch-poll --progress --hide-modules --config=node_modules/laravel-mix/setup/webpack.config.js",
"hot": "node node_modules/cross-env/dist/bin/cross-env.js NODE_ENV=development node_modules/webpack-dev-server/bin/webpack-dev-server.js --inline --hot --config=node_modules/laravel-mix/setup/webpack.config.js",
"production": "node node_modules/cross-env/dist/bin/cross-env.js NODE_ENV=production node_modules/webpack/bin/webpack.js --progress --hide-modules --config=node_modules/laravel-mix/setup/webpack.config.js"
},
Running laravel from xampp shell (windows 7)

Answer 4

Note: Make sure you have the latest version of node.js and npm installed.
Clear NPM's cache:
sudo npm cache clean -f
Install called 'n':
sudo npm install -g n
Install latest stable Node.js version: sudo n stable
Alternatively pick a specific version and install like this:
sudo n (wanted node version)
You can get information on how to open an issue for this project with: npm bugs
It's literally described in the log output what to do...

Answer 5

try this also:
npm uninstall --save-dev sass-loader
It just ran perfectly when i tried to run the command npm run dev / npm run watch