How do I debug “Error: spawn ENOENT” on node.js?

Question

When I get the following error:

events.js:72
        throw er; // Unhandled \'error\' event
              ^
Error: spawn ENOENT
    at errnoException (chil         


        

Answer 1

I ran into this problem on Windows, where calling exec and spawn with the exact same command (omitting arguments) worked fine for exec (so I knew my command was on $PATH), but spawn would give ENOENT. Turned out that I just needed to append .exe to the command I was using:

import { exec, spawn } from 'child_process';

// This works fine
exec('p4 changes -s submitted');

// This gives the ENOENT error
spawn('p4');

// But this resolves it
spawn('p4.exe');
// Even works with the arguments now
spawn('p4.exe', ['changes', '-s', 'submitted']);