'cross-env' is not recognized as an internal or external command,

问题

Guys can you please help me on this I have trouble run npm run dev for my Laravel Mix. I followed links below but still error exist. Do i have a problem on my OS? I tried to remove node_modules, run npm install --global cross-env. and run NPM install again.

https://github.com/JeffreyWay/laravel-mix/issues/478

Laravel 5.4 'cross-env' is not recognized as an internal or external command

Here are my versions:

Laravel mix version: ^2.0
Node Version (node -v): 8.9.0
NPM Version (npm -v): 5.6.0
OS: Windows7
XAMPP

> @ development C:\xampp\htdocs\codetinerant
> cross-env NODE_ENV=development node_modules/webpack/bin/webpack.js --progress --hide-modules --config=node_modules/laravel-mix/setup/webpack.config.js

'cross-env' is not recognized as an internal or external command,
operable program or batch file.
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! @ development: `cross-env NODE_ENV=development node_modules/webpack/bin/webpack.js --progress --hide-modules --config=node_modules/laravel-mix/setup/webpack.config.js`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the @ development script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

npm ERR! A complete log of this run can be found in:
npm ERR!     C:\Users\Garciano\AppData\Roaming\npm-cache\_logs\2018-02-17T10_08_34_901Z-debug.log

回答1:

First, run:

rm -rf node_modules
rm package-lock.json yarn.lock
npm cache clear --force

Then run the command

npm install cross-env

npm install

and then you can also run

npm run dev

回答2:

Did you try specifying the path to cross-env as suggested by dwoodward on the Github issue you linked? This goes in your package.json file:

"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"

This may have changed in more recent versions of Laravel but the gist is that you should change cross-env to node_modules/cross-env/dist/bin/cross-env.js.

回答3:

Try Add the npm bin directory to your system path e.g C:\Users\DELL\AppData\Local\Yarn\bin

来源：https://stackoverflow.com/questions/48840341/cross-env-is-not-recognized-as-an-internal-or-external-command

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