[node.js] Laravel 5.4 ‘cross-env’ Is Not Recognized as an Internal or External Command

I'm trying to run npm run dev for Laravel Mix and I get this error:

> @ dev D:\projects\ptcs
> cross-env NODE_ENV=development webpack --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! @ dev: `cross-env NODE_ENV=development webpack --progress --hide-
modules --config=node_modules/laravel-mix/setup/webpack.config.js`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the @ dev script.

I updated node.js to 6.11.0 and npm to 5.2.0, but it didn't help. I'm running Homestead on Windows 7.

You are getting the error because you might not have run the command npm install first.

i.e. First, run npm install and then npm run dev

Try to run npm run dev in powershell. This worked for me.

I think this log entry Local package.json exists, but node_modules missing, did you mean to install? has gave me the solution.

npm install && npm run dev

This worked for me (on Windows 10):

1. Add the following lines into your scripts in the package.json file:

   "dev": "npm run development",
   "development": "cross-env NODE_ENV=development node_modules/webpack/bin/webpack.js --progress --hide-modules --config=node_modules/laravel-mix/setup/webpack.config.js",
   "watch": "npm run development -- --watch",
   "watch-poll": "npm run watch -- --watch-poll",
   "hot": "cross-env NODE_ENV=development node_modules/webpack-dev-server/bin/webpack-dev-server.js --inline --hot --config=node_modules/laravel-mix/setup/webpack.config.js",
   "prod": "npm run production",
   "production": "cross-env NODE_ENV=production node_modules/webpack/bin/webpack.js --no-progress --hide-modules --config=node_modules/laravel-mix/setup/webpack.config.js"
   

2. Make your devDependencies looks something like this:

   "devDependencies": {
       "axios": "^0.18",
       "bootstrap": "^4.0.0",
       "popper.js": "^1.12",
       "cross-env": "^5.1",
       "jquery": "^3.2",
       "laravel-mix": "^2.0",
       "lodash": "^4.17.4",
       "vue": "^2.5.7"
   }
   

3. Remove node_modules folder

4. Run npm install
5. Run npm run dev

Simply try running npm install / yarn etc first before running npm start / yarn start as @only4 mentioned, if you see this problem, as it means your .env is not in sync with your package.json, i.e. you installed a package but not quite configured it or other way around

Before try running npm run dev please run npm install --no-bin-links in the project directory, this will install all required packages. Also check this link for compiling instruction. https://laravel.com/docs/5.4/mix

Also double check in your conf file, wherever you find something like this

(something)/cross-env/bin/(something)

change it to

(something)/cross-env/dist/bin/(something)

If you are using homestead, in package.json paste this

{
  "private": true,
  "scripts": {
    "dev": "cross-env NODE_ENV=development node_modules/webpack/bin/webpack.js --progress --hide-modules --config=node_modules/laravel-mix/setup/webpack.config.js",
    "watch": "cross-env NODE_ENV=development node_modules/webpack/bin/webpack.js --watch --progress --hide-modules --config=node_modules/laravel-mix/setup/webpack.config.js",
    "watch-poll": "cross-env 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": "cross-env 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": "cross-env NODE_ENV=production node_modules/webpack/bin/webpack.js --progress --hide-modules --config=node_modules/laravel-mix/setup/webpack.config.js"
  },
  "devDependencies": {
    "axios": "^0.15.3",
    "bootstrap-sass": "^3.3.7",
    "cross-env": "^3.2.3",
    "jquery": "^3.1.1",
    "laravel-mix": "^0.8.1",
    "lodash": "^4.17.4",
    "vue": "^2.1.10"
  }
}

Also check this link https://github.com/JeffreyWay/laravel-mix/issues/478

Just npm install --save-dev cross-env in the root directory of your project.

The following worked for Laravel 7.x (and should probably work for any other version as well given the nature of the issue).

npm uninstall --save-dev cross-env
npm install -g cross-env

Just moving cross-env from being a local devDependency to a globally available package.

For me simply run:

npm install cross-env

was enough

Following these steps solved my problem.

1. Delete node_modules directory
2. Delete package-lock.json file
3. Start command prompt as Administrator <- important
4. Run npm install
5. Run npm run dev

I real all the solution but there is not a standard solution...

JUST REMOVE NODEJS AND INSTALL THE LATEST VERSION OF NODEJS

instead of many bad shortcut solutions.

According to this issue comment, editing cross-env path will fix the problem. Change cross-env to node node_modules/cross-env/dist/bin/cross-env.js in package.json like this:

    "dev": "npm run development",
    "development": "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": "npm run watch -- --watch-poll",
    "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",
    "prod": "npm run production",
    "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"

Delete the node_modules folder

Then you should run the commands:

npm install --no-bin-links

npm run dev

It's worked on my Laravel 5.5 and Windows.

There is the same problem in Linux OS. The issue is related on Windows OS, but Homestead is a Ubuntu VM, and the solution posted works strongly good in others SO. I applied the commands sugested by flik, and the problems was solved. I only used the following commands

I only used the following commands

rm -rf node_modules
npm cache clear --force

After

npm install cross-env
npm install 
npm run watch

It's working fine on linux Fedora 25.

Your error states that cross-env is not installed.

'cross-env' is not recognized as an internal or external command, operable program or batch file.

You just need to run

npm install cross-env

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