"How to fix 'App crashed' on heroku in cmd prompt"

Question

I am trying to launch my app on heroku. Yet when I execute heroku open command I see that it is giving an issue in the logs that "App crashed"

Tried checking logs and restarting rails server.

heroku logs --app obscure-beyond-78036

CMD

2019-10-08T19:49:11.686542+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/" host=obscure-beyond-78036.herokuapp.com request_id=db281cf3-6b5b-46fa-b35d-72617b23a864 fwd="73.244.194.180" dyno= connect= service= status=503 bytes= protocol=https

Expected functionality is to launch the app on heroku.

Added logs

C:\r5.1>heroku logs --app obscure-beyond-78036
2019-11-09T22:31:51.129452+00:00 heroku[web.1]: State changed from crashed to starting
2019-11-09T22:31:56.935810+00:00 heroku[web.1]: Starting process with command `bin/rails server -p 32098 -e production`
2019-11-09T22:31:59.364804+00:00 heroku[web.1]: State changed from starting to crashed
2019-11-09T22:31:59.370115+00:00 heroku[web.1]: State changed from crashed to starting
2019-11-09T22:31:59.344842+00:00 heroku[web.1]: Process exited with status 127
2019-11-09T22:31:59.274991+00:00 app[web.1]: /usr/bin/env: ‘ruby\r’: No such file or directory
2019-11-09T22:32:03.221294+00:00 heroku[web.1]: Starting process with command `bin/rails server -p 37912 -e production`
2019-11-09T22:32:05.568964+00:00 heroku[web.1]: State changed from starting to crashed
2019-11-09T22:32:05.551998+00:00 heroku[web.1]: Process exited with status 127
2019-11-09T22:32:05.470297+00:00 app[web.1]: /usr/bin/env: ‘ruby\r’: No such file or directory

Please add the entire log output to your question. What you provided is just a standard error that doesn't provide any information about what may be causing the app to crash. — Mark Merritt, Oct 08 '19 at 20:12
`$ heroku restart` » Error: Missing required flag: » -a, --app APP app to run command against » See more help with --help — Sk1993, Oct 08 '19 at 21:04

score 1 · Answer 1 · answered Oct 08 '19 at 21:01

Check out docs about logs and how to work with them on Heroku https://devcenter.heroku.com/articles/logging#log-retrieval and ask again if the logs are not clear to you.

Also, a google search shows some typical issues with rails app on heroku, for example Heroku code=H10 desc="App crashed" - Can't figure out why it's crashing

"How to fix 'App crashed' on heroku in cmd prompt"

1 Answers1