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I want to set some env variable in my node app but when I run this command NODE_ENV=development x=23 nodemon.cmd server.jsenter image description here then it gives me that error NODE_ENV=development' is not recognized, I found some solution where it said that I have to run a npm package npm install -g win-node-env then it will work, but in my case, I got the same error. I am a windows user, any solution how to fix this.

Mohammad Ali Shuvo
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  • This issue is that isn't how you set environmental variables within the PowerShell CLI. See: https://learn.microsoft.com/en-us/powershell/module/microsoft.powershell.core/about/about_environment_variables – undefined Sep 26 '21 at 10:32

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This may or may not relevant to your question, but as far as I know, windows powershell syntax does not assign variable that way.

to assign variable in windows, you can subtitute NODE_ENV=development with $NODE_ENV:development

As a workaround, and if you want to run it on any OS, use cross-env npm package.

npm install --save-dev cross-env

Now, it can run command such as:

cross-env NODE_ENV=development node server.js
Jastria Rahmat
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  • Thanks for your reply, I install the cross-env package and and run `cross-env NODE_ENV=development nodemon server.js` but it showes that it is not recognized but using Command Prompt solve my problem. – Mohammad Ali Shuvo Sep 26 '21 at 12:47
  • @MohammadAliShuvo please mark the answer if it's solves your problem – Jastria Rahmat Nov 30 '21 at 03:37