[FIXED] What is the error when I set "NODE_ENV=production", how to set environment variable for node script command?

Issue

I use webpack 3.1.0, node 9.2.0, command line of windows 10.

Got the error when I run script on package.json.

"scripts": {
"build": "NODE_ENV=production webpack --progress --colors -p",
...
}

I get the errors like below.

13 verbose stack Error: wow_dns@1.0.0 build: `NODE_ENV=production webpack --progress --colors -p`
13 verbose stack Exit status 1
13 verbose stack     at EventEmitter.<anonymous> (C:\Users\sheng\AppData\Roaming\npm\node_modules\npm\node_modules\npm-lifecycle\index.js:285:16)
13 verbose stack     at EventEmitter.emit (events.js:159:13)
13 verbose stack     at ChildProcess.<anonymous> (C:\Users\sheng\AppData\Roaming\npm\node_modules\npm\node_modules\npm-lifecycle\lib\spawn.js:55:14)
13 verbose stack     at ChildProcess.emit (events.js:159:13)
13 verbose stack     at maybeClose (internal/child_process.js:943:16)
13 verbose stack     at Process.ChildProcess._handle.onexit (internal/child_process.js:220:5)
14 verbose pkgid wow_dns@1.0.0
15 verbose cwd F:\wow\wow_dns
16 verbose Windows_NT 10.0.16299
17 verbose argv "C:\\Program Files\\nodejs\\node.exe" "C:\\Users\\sheng\\AppData\\Roaming\\npm\\node_modules\\npm\\bin\\npm-cli.js" "run" "build"

But it would be run through, if I delete "NODE_ENV=production" like:

"scripts": {
"build": "webpack --progress --colors -p",
...
}

It will works. How to setting running environment in with production environment?

Solution

Please change

"build": "NODE_ENV=production webpack --progress --colors -p"

to

"build": "set NODE_ENV=production;webpack --progress --colors -p"

or

"build": "NODE_ENV=production;webpack --progress --colors -p"

The problem is that once you finish a command you need to give a semicolon to say that command is over.

Answered By - deepak thomas

Answer Checked By - Mary Flores (PHPFixing Volunteer)