Why does a successful`load mod_erlang_event` throw errors and has its C-node eventually exit in `fs_cli`?

> load mod_erlang_event

[CONSOLE] switch_loadable_module.c:1772 Successfully Loaded [mod_erlang_event]
[NOTICE ] switch_loadable_module.c:329 Adding Application 'erlang'
[NOTICE ] switch_loadable_module.c:329 Adding Application 'erlang_sendmsg'
[NOTICE ] switch_loadable_module.c:389 Adding API Function 'erlang'
[DEBUG  ] mod_erlang_event.c:2054 Socket up listening on 0.0.0.0:8031

[WARNING] mod_erlang_event.c:2079
          Failed to publish port to epmd,
          trying to start epmd via system()

[ERR    ] mod_erlang_event.c:2081
          Failed to start epmd manually!
          Is epmd in $PATH? If not, start it yourself 
          or run an erl shell with -sname or -name

[DEBUG  ] mod_erlang_event.c:2142 Exiting module mod_erlang_event
[NOTICE ] switch_loadable_module.c:125 Thread ended for mod_erlang_event