An open port was not detected

Replit Help
1

Question:

I’m getting an error: hostingpid1: an open port was not detected when trying to deploy my repl.

Repl link/Link to where the bug appears:

Screenshots, links, or other helpful context:

code snippet
2

Im seeing exactly the same issue.

Code runs manually as it should but will not let me deploy, it gets stuck and errors at the last stage, with the “promote”. I am trying to deploy a Python script for some API work.

3

I don’t remember exactly which one but I’m pretty sure there is a specific port to run on, at 0.0.0.0, that could be the problem.

4

@FarkhodNarbayev @JacobTober Can you provide links to the Repls that are not deploying?

Once you have gone through the troubleshooting guide here, feel free to sign up for a debugging session on my calendar.

5

same for me, it says “hostingpid1: an open port was not detected” on the last loading thing

6

Feel free to sign up my calendly linked above for debugging as well, it is open to the public.

The error means that your application did not listen on a port. If your deployment is not a website but rather a bot or something else that runs in the background, you will need to deploy it as a Background Worker within a Reserved VM deployment. Those options are available via the Deployments pane in the UI.