npm builds with no errors but not working?

Question

I am new to NPM and node.js I tried to run this MIT project

 https://github.com/quran/quran.com-frontend

I followed the instructions of developer

0-npm install dotenv --save
1- update the API_URL, in development.env file, from localhost to api.quran.com
2-To start the app,run  ====> npm run dev 
3- Go to http://localhost:8001 in your browser

few times I get this warning message

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

but it builds the project no other error but its not working when I check localhost address , what am going wrong?

Answer 1

The project is assuming you're using *nix and not Windows, since it is using the env command which is not a Windows command. You will either need to switch platforms or submit an issue to that project's issue tracker requesting that they make the package.json scripts platform-independent.