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JavaScript Preparing Your Application for Deployment

Andrew Whatmore
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Andrew Whatmore
Full Stack JavaScript Techdegree Student 8,952 Points
Posted by Andrew Whatmore
.a{fill-rule:evenodd;}techdegree
Andrew Whatmore
Full Stack JavaScript Techdegree Student 8,952 Points

Error with heroku open

Hi,

I'm trying to run the 'heroku open' command. I'm using WSL2 in Windows 11. They haven't played well together at all!

I am actually able to open the app using the link that heroku open creates. But heroku open itself doesn't open it, and it creates the following error message. I would like to fix it because I have had a lot of problems getting it working and would like to make sure there aren't underlying issues which could create future problems.

Error message

The error message in WSL terminal is as follows:

node:events:497
      throw er; // Unhandled 'error' event
      ^

Error: spawn /mnt/c/Windows/System32/WindowsPowerShell/v1.0/powershell.exe EACCES
    at ChildProcess._handle.onexit (node:internal/child_process:285:19)
    at onErrorNT (node:internal/child_process:483:16)
    at process.processTicksAndRejections (node:internal/process/task_queues:89:21)
Emitted 'error' event on ChildProcess instance at:
    at ChildProcess._handle.onexit (node:internal/child_process:291:12)
    at onErrorNT (node:internal/child_process:483:16)
    at process.processTicksAndRejections (node:internal/process/task_queues:89:21) {
  errno: -13,
  code: 'EACCES',
  syscall: 'spawn /mnt/c/Windows/System32/WindowsPowerShell/v1.0/powershell.exe',
  path: '/mnt/c/Windows/System32/WindowsPowerShell/v1.0/powershell.exe',
  spawnargs: [
    '-NoProfile',
    '-NonInteractive',
    '-ExecutionPolicy',
    'Bypass',
    '-EncodedCommand',

Logs

This was the top part of the logs when I ran 'heroku logs --tail':

2026-04-04T12:25:54.630313+00:00 app[web.1]: > node app.js
2026-04-04T12:25:54.630314+00:00 app[web.1]: 
2026-04-04T12:25:54.721327+00:00 app[web.1]: The application is running on localhost:3000.
2026-04-04T12:26:53.864332+00:00 heroku[web.1]: Stopping process with SIGKILL
2026-04-04T12:26:53.930445+00:00 heroku[web.1]: Process exited with status 137
2026-04-04T12:26:53.958229+00:00 heroku[web.1]: State changed from starting to crashed
2026-04-04T12:34:43.998113+00:00 app[api]: Log session created by user wjboff@hotmail.co.uk
2026-04-04T12:38:16.000000+00:00 app[api]: Build started by user wjboff@hotmail.co.uk
2026-04-04T12:38:33.000000+00:00 app[api]: Build succeeded
2026-04-04T12:38:33.512575+00:00 app[api]: Deploy afad42b9 by user wjboff@hotmail.co.uk
2026-04-04T12:38:33.512575+00:00 app[api]: Release v6 created by user wjboff@hotmail.co.uk
2026-04-04T12:38:34.077002+00:00 heroku[web.1]: State changed from crashed to starting
2026-04-04T12:38:36.839466+00:00 heroku[web.1]: Starting process with command `npm start`
2026-04-04T12:38:37.864527+00:00 app[web.1]:
2026-04-04T12:38:37.864548+00:00 app[web.1]: > flashcards@1.0.0 start
2026-04-04T12:38:37.864549+00:00 app[web.1]: > node app.js
2026-04-04T12:38:37.864550+00:00 app[web.1]:
2026-04-04T12:38:37.967778+00:00 app[web.1]: The application is running on localhost:3000.
2026-04-04T12:38:37.997509+00:00 heroku[web.1]: State changed from starting to up

Many thanks in advance for anyone's help!