No open ports detected, continuing to scan... elixir / phoenix

Hi,

New to the Render platform, when I attempt my elixir/phoenix service onto Render, I keep getting the “No open ports detected” error message.

Any help would be great.

==> Build successful 🎉

Jun 6 11:19:05 PM

==> Deploying...

Jun 6 11:20:34 PM

==> No open ports detected, continuing to scan...

Jun 6 11:20:34 PM

==> Docs on specifying a port: https://render.com/docs/web-services#port-binding

Jun 6 11:20:39 PM

==> Using Erlang version 26.2.2 (default)

Jun 6 11:20:42 PM

==> Using Elixir version 1.16.1 (default)

Jun 6 11:20:45 PM

==> Docs on specifying Elixir and Erlang versions: https://render.com/docs/elixir-erlang-versions

Jun 6 11:20:45 PM

==> Running '_build/prod/rel/server/bin/server'

Jun 6 11:21:35 PM

==> No open ports detected, continuing to scan...

Jun 6 11:21:35 PM

==> Docs on specifying a port: https://render.com/docs/web-services#port-binding

Jun 6 11:22:36 PM

==> No open ports detected, continuing to scan...

Jun 6 11:22:36 PM

==> Docs on specifying a port: https://render.com/docs/web-services#port-binding

Jun 6 11:23:36 PM

==> No open ports detected, continuing to scan...

Jun 6 11:23:37 PM

==> Docs on specifying a port: https://render.com/docs/web-services#port-binding

Jun 6 11:24:37 PM

==> No open ports detected, continuing to scan...

Jun 6 11:24:37 PM

==> Docs on specifying a port: https://render.com/docs/web-services#port-binding

Jun 6 11:25:38 PM

==> No open ports detected, continuing to scan...

Jun 6 11:25:38 PM

==> Docs on specifying a port: https://render.com/docs/web-services#port-binding

Jun 6 11:25:38 PM

==> Port scan timeout reached, no open ports detected. Bind your service to at least one port. If you don't need to receive traffic on any port, create a background worker instead.

Thank you ~