I'm trying to setup an environment for a Node.js app. but I'm getting this error every time.
"NODE_ENV" is not recognized as an internal or external command,
operable command or batch file.
What does this mean and how can I solve this problem?
I'm using Windows and also tried set NODE_ENV=development but had no luck.
I wrote a module for this: win-node-env.
It creates a NODE_ENV.cmd that sets the NODE_ENV environment variable and spawns a child process with the rest of the command and its args.
Just install it (globally), and run your npm script commands, it should automatically make them work.
npm install -g win-node-env
It sounds like your error comes from an attempt to run something like this (which works in Linux)
NODE_ENV=development node foo.js
the equivalent in Windows would be
SET NODE_ENV=development
node foo.js
running in the same command shell. You mentioned set NODE_ENV did not work, but wasn't clear how/when you executed it.
for windows use & in between command also. Like,
"scripts": {
"start": "SET NODE_ENV=development & nodemon app/app.js",
}
npm install --save-dev "cross-env" module.
modify the code as cross-env NODE_ENV=development node foo.js.
Then you can run the like npm run build.
Use win-node-env, For using it just run below command on your cmd or power shell or git bash:
npm install -g win-node-env
After it everything is like Linux.
I had the same problem and on windows platform and i just ran the below command
npm install -g win-node-env
and everything works normally
set NODE_ENV=production & nodemon app/app.js
will cause NODE_ENV to contain a space at the end:
process.env.NODE_ENV == 'production'; //false
process.env.NODE_ENV == 'production '; //true
As mentioned in a comment here, use this instead:
NODE_ENV=production&& nodemon app/app.js
Changing your scripts to accommodate Windows is a royal pain. Trying to figure out the appropriate Windows translations and maintaining 2 sets of scripts is no way to live your life.
It's much easier to configure npm to use bash on Windows and your scripts will run as is.
Simply run npm config set script-shell "C:\\Program Files\\Git\\bin\\bash.exe". Make sure the path to the bash executable is correct for your machine. You'll likely need to start a new instance of the terminal for the change to take effect.
The screenshot below illustrates the benefit.
npm ERR! when trying to run script initially.
Script modified for Windows use runs but doesn't show the return message.
After updating npm config to use bash, the script runs and returns the appropriate message.
For those who uses Git Bash and having issues with npm run <script>,
Just set npm to use Git Bash to run scripts
npm config set script-shell "C:\\Program Files\\git\\bin\\bash.exe" (change the path according to your installation)
And then npm will run scripts with Git Bash, so such usages like NODE_ENV= will work properly.
This worked for me since it's an easy fix. I cloned a repository which was developed in WINDOWS but I am using MACOS.
If you are using windows use SET as prefix:
"scripts": {
"dev": "SET NODE_ENV=development && nodemon index.js",
},
But if you are using MacOS remove the SET keyword and use :
"scripts": {
"dev": "NODE_ENV=development && nodemon index.js",
},
So in a nutshell
if you are using windows use SET prefix before your run scripts and remove SET from MacOS (probably LINUX also) as shown above.
Do this it will definitely work
"scripts": {
"start": "SET NODE_ENV=production && node server"
}
NODE_ENV=development & node [your file name here]
or
SET NODE_ENV=development & node [your file name here]
You can solve this if you're using "Yarn Packager" by the following command:
yarn global add win-node-env
npm install -S cross-env
Worked for me
For windows
open git bash and try
NODE_ENV=production node app.js
If anyone else came here like me trying to find a solution for the error:
'env' is not recognized as an internal or external command
The reason I got this is that I was migrating an angular solution from a mac development machine over to a windows 10 desktop. This is how I resolved it.
run npm install --save-dev cross-env
go into my package.json file and change all the script references from env <whatever> to cross-env <whatever>
Then my commands like: npm run start:some_random_environment_var now run fine on Windows 10.
For windows you can do it like
"scripts": {
"start:prod" : "SET NODE_ENV=production & nodemon app.js",
"start:dev" : "SET NODE_ENV=development & nodemon app.js"
},
Most of the answers up there didn't help me..
What helped me was NODE_ENV=production&& nodemon app/app.js
Take note of the space.
Good luck.
set the script "test" inside the "package.json" file :
FOR EXAMPLE:
In Windows;
"test": "SET NODE_ENV=test & jest",
In Linux/Mac;
"test": "NODE_ENV=test jest",
you can use this
"scripts": {
"start:dev": "nodemon server.js",
"start:prod": "SET NODE_ENV=production & nodemon
server.js"
},
or you can install this
npm install -g win-node-env
and you can run NODE_ENV without SET
"start:prod": "NODE_ENV=production nodemon server.js"
"set NODE_ENV=production&& nodemon server.js" this one works for me.
set NODE_ENV=**production&** nodemon server.js
& must be joined because if you put space between production and & then
NODE_ENV will contain space in last like this 'production '
So just remove space between production and & and add space after &
process.env.NODE_ENV is adding a white space do this
process.env.NODE_ENV.trim() == 'production'
below code for windows
"start": "SET NODE_ENV=development & nodemon app.js",
"prod": "SET NODE_ENV=production & node app.js"
You can use this syntax (using "cross-env") ->
cross-env NODE_ENV=prod node dist/main
On a windows platform
($env:NODE_ENV="environmentName") -and (node file.js)
Kill the terminal( Ctrl + C) then run the file
node file.js
If you are using Powershell as your terminal by any chance, try Using Git-Bash for the same.
NODE_ENV=development node foo.js
try using this
NODE_ENV =development node server.js
I'm on a windows 10 machine trying to run a build script from the git bash terminal.
On my terminal node is recognized just fine, for example I get the version when I run node --version.
But running the build script fails with the following error:
'NODE_OPTIONS' is not recognized as an internal or external command,
operable program or batch file.
I'm guessing I need to add something to my PATH variables to get this to work, but what?
Use cross-env package which easily sets environment variables.
Step 1:
Install cross-env from npm
npm i cross-env
In your package.json file (In this example your need is to run 'start' command which has 'NODE_OPTIONS')
{
"name": "your-app",
"version": "0.0.0",
"scripts": {
...
"start": "NODE_OPTIONS=<your options> <commands>",
}
}
Step 2
Add 'cross-env' in the script which you need to run NODE_OPTIONS. (In this case 'start' script)
{
"name": "your-app",
"version": "0.0.0",
"scripts": {
...
"start": "cross-env NODE_OPTIONS=<your options> <commands>",
}
}
For me installing the below mentioned package solved the problem
npm install -g win-node-env
Not a PATH issue, NODE_OPTIONS is an ENVIRONMENT VARIABLE that needs to be set before starting your build. To set en environment variable in Windows 10 you need to use the set command in a terminal mode. See this article on SUPERUSER forum to learn more.
In your case, just add set before NODE_OPTIONS and that will fix your issue.
Here's how to integrate it in package.json:
...
"scripts": {
...
"build": "set NODE_OPTIONS=--max_old_space_size=4096 && next build"
...
}
...
A way to launch both the node process and the debugger via F5, which does not require wrestling with env vars.
Make sure .vscode/launch.json is deleted.
1. Open the Run & Debug pane
2. Click on Node.js
3. DO NOT click on "Run script: dev" directly, instead click on the cog next to it
4. Your launch.json should look similar to:
{
"configurations": [
{
"type": "node-terminal",
"name": "Run Script: dev",
"request": "launch",
"command": "yarn run dev",
"cwd": "${workspaceFolder}"
}
]
}
I am running Node 6.9.5 and NPM 3.10.10 on a Windows 7 machine. My terminal is Cygwin 2.877.
If I try to run the following in Cygwin, it works fine:
mkdir mydir/mysubdir;
However, if I put it into a package.json file instead, e.g.:
"scripts": {
"test": "mkdir mydir/mysubdir"
},
and run:
npm run test
It fails with:
The syntax of the command is incorrect.
After Googling the above, it seems to be a Windows Command Prompt error, not a Cygwin one. As such, it seems that NPM is trying to run the script using the Command Prompt rather than the existing Cygwin environment.
How can I fix this? Or rather, how can I make sure NPM runs scripts in the terminal environment it is being invoked from?
The script are always run in the default windows shell, not cygwin.
If you want it to run in bash then put this in package.json:
"scripts": {
"test": "bash test.sh"
},
and put this in test.sh:
#!/bin/bash
mkdir mydir/mysubdir
Or, as csvan pointed out in the comment, you can use Node scripts instead of shell scripts:
"scripts": {
"test": "node test.js"
},
This approach is even better for cross-platform compatibility.
See also:
Why does `DEBUG=foo node index.js` fails in `scripts` section of `package.json`
In my package.json I have set a config variable called "foo" to "bar", and I am calling that variable with an NPM script.
"config": {
"foo": "bar"
},
"scripts": {
"test": "echo $npm_package_config_foo"
}
Running npm run test should output bar, but it doesn't.
I suspect that I have a general issue accessing environmental variables. As an example, I can use uglifyjs from NPM scripts but not from the command line.
Running printenv from the command line doesn't show up any of the NPM variables that one would expect.
Setup: OSX 10.11.6, NPM 2.15.11, Node 6.2.0.
What you are trying is wrong: node environment variables are only accessible using process global variable in a node process, not system-wide. So to achieve what you want you have to do is make following changes.
package.json
"config": {
"foo": "bar"
},
"scripts": {
"test": "node ./app.js"
}
app.js
console.log(process.env.npm_package_config_foo);
you can find more information here
My solution:
Set foo using npm config set foo bar
Removed the config object from my package.json.
Change $npm_package_config_foo to $npm_config_foo in the NPM scripts properties
Here is my package.json script:
"scripts": {
"start": "NODE_PATH=$NODE_PATH:./shared node",
"dev": "npm run start & webpack-dev-server --progress --color"
},
When I run npm start in Windows 8 it shows the below error:
node_path is not recognized as a internal or external command, operable program or batch file
I had the same problem when I wanted to set the environment variable in a browserify script:
"scripts": {
"build:symlinked": "NODE_PATH=./node_modules browserify src/index.js > dist/build.js"
}
To be able to use linked node modules that are requiring peer-dependencies.
As mentioned above, you can try to set the environment variable manually or by script where it seems you have to use different commands depending on what command line tool you use.
For not having to do this every time, I found that npm package: cross-env.
By installing it and applying the script like this
"scripts": {
"build:symlinked": "cross-env NODE_PATH=./node_modules browserify src/index.js > dist/build.js"
}
I was able to solve that problem. This is mainly useful, if you work in a team with mixed MAC/Linux and Windows users, so you don't have to to take care about applying the Environment variables in such scripts anymore.
You don't need to define environment variable in package.json just use this
{
"scripts" : "node server.js"
}
or define what you want, here is the reference link.