Error: spawn npm ENOENT

Just changed this line

const child = spawn('npm', ['run', service]);

to this line

  const child = spawn(/^win/.test(process.platform) ? 'npm.cmd' : 'npm', ['run',  service]);

Which is checking the operating system if ti's windows it runs npm.cmd if it's linux just npm

I faced the same problem. My application code was running fine in MAC but in Windows it was giving an error about the code related to the spawn command

The error occurs when running using command prompt

When I used GIT bash to start the application then the error did not occur. I did not need to change any code

I know there is a correct answer and this question has been around for a long time, my solution is based on the answer @Armen Sanoyan and How do I determine the current operating system with Node.js

For me the @Armen Sanoyan answer does not work, but help a lot. I changed for this line and work.

const child = (process.platform === 'win32' ? 'npm.cmd' : 'npm') + ' run ' + service;

I hope I can help.