Ejabberd does not work on MAC with [Failed to open socket at [::]:5222] - ejabberd

Question

I am facing errors at the first cup of Ejabberd.
On my Mac(10.13.6) I installed "ejabberd-18.12.1-osx.app" and I have followed all instruction written in official website. (https://docs.ejabberd.im/admin/installation/#install-on-macos)
After installation was completed I noticed nothing significant and found error logs were generated as below.
2019-01-16 10:02:03.936 [error] <0.316.0>#ejabberd_listener:report_socket_error:417 Failed to open socket at [::]:5222 for ejabberd_c2s: address already in use
2019-01-16 10:02:03.937 [error] <0.315.0> Supervisor ejabberd_listener had child {5222,{0,0,0,0,0,0,0,0},tcp} started with ejabberd_listener:start({5222,{0,0,0,0,0,0,0,0},tcp}, ejabberd_c2s, [{ip,{0,0,0,0,0,0,0,0}},{max_stanza_size,262144},{shaper,c2s_shaper},{access,c2s},{starttls_required,...}]) at undefined exit with reason eaddrinuse in context start_error
2019-01-16 10:02:03.937 [error] <0.274.0> Supervisor ejabberd_sup had child ejabberd_listener started with ejabberd_listener:start_link() at undefined exit with reason {shutdown,{failed_to_start_child,{5222,{0,0,0,0,0,0,0,0},tcp},eaddrinuse}} in context start_error
2019-01-16 10:02:03.942 [critical] <0.81.0>#ejabberd_app:start:66 Failed to start ejabberd application: {error,{shutdown,{failed_to_start_child,ejabberd_listener,{shutdown,{failed_to_start_child,{5222,{0,0,0,0,0,0,0,0},tcp},eaddrinuse}}}}}
I exactly understand what "address already in use" means but netstat does not show any possession on this port. Also I never changed any of the server configuration. I tried to start server manually but same errors repeats.
Does this version of Ejabberd have bugs on Mac installation?
Many thanks in advance.

Answer 1

When ejabberd starts, it uses several ports (some for XMPP, others for additional ejabberd features, others for Erlang). Notice that some ports may be in IPv6:
tcp 0 0 0.0.0.0:42859 0.0.0.0:* LISTEN
tcp 0 0 0.0.0.0:4560 0.0.0.0:* LISTEN
tcp 0 0 0.0.0.0:epmd 0.0.0.0:* LISTEN
tcp 0 0 0.0.0.0:5280 0.0.0.0:* LISTEN
tcp6 0 0 [::]:epmd [::]:* LISTEN
tcp6 0 0 [::]:xmpp-client [::]:* LISTEN
tcp6 0 0 [::]:xmpp-server [::]:* LISTEN
Maybe you have other previous ejabberd installation around there messing? Or other XMPP server?