erlang - ejabberd_router:ejabberd モジュールのルート エラー

Question

ejabberd で簡単なエコー ボットを作成しようとしています。私は mod_echo が正常に動作するようになり、ある時点で自分のバージョンが動作していたことをかなり確信しています (デバッグは私の頭でトリックをしました)。以下のエラーが表示されますが、デバッグするために次に何をすべきかわかりません。ルーティングに問題があるようですが、その理由はよくわかりません。任意のヒント？

2016-03-31 16:49:38.350 [debug] <0.448.0>@ejabberd_router:do_route:324 route
    from {jid,<<"user1">>,<<"alchemy.local">>,<<"alchemy">>,<<"user1">>,<<"alchemy.local">>,<<"alchemy">>}
    to {jid,<<>>,<<"echo.alchemy.local">>,<<>>,<<>>,<<"echo.alchemy.local">>,<<>>}
    packet {xmlel,<<"message">>,[{<<"xml:lang">>,<<"en">>},{<<"to">>,<<"echo.alchemy.local">>},{<<"id">>,<<"aacca">>}],[{xmlcdata,<<"\n">>},{xmlel,<<"subject">>,[],[]},{xmlcdata,<<"\n">>},{xmlel,<<"body">>,[],[{xmlcdata,<<"testme">>}]},{xmlcdata,<<"\n">>},{xmlel,<<"nick">>,[{<<"xmlns">>,<<"http://jabber.org/protocol/nick">>}],[{xmlcdata,<<"user1">>}]},{xmlcdata,<<"\n">>}]}
2016-03-31 16:49:38.351 [error] <0.448.0>@ejabberd_router:route:77 {function_clause,[{mod_echobot,route,[{jid,<<"user1">>,<<"alchemy.local">>,<<"alchemy">>,<<"user1">>,<<"alchemy.local">>,<<"alchemy">>},{jid,<<>>,<<"echo.alchemy.local">>,<<>>,<<>>,<<"echo.alchemy.local">>,<<>>},{xmlel,<<"message">>,[{<<"xml:lang">>,<<"en">>},{<<"to">>,<<"echo.alchemy.local">>},{<<"id">>,<<"aacca">>}],[{xmlcdata,<<"\n">>},{xmlel,<<"subject">>,[],[]},{xmlcdata,<<"\n">>},{xmlel,<<"body">>,[],[{xmlcdata,<<"testme">>}]},{xmlcdata,<<"\n">>},{xmlel,<<"nick">>,[{<<"xmlns">>,<<"http://jabber.org/protocol/nick">>}],[{xmlcdata,<<"user1">>}]},{xmlcdata,<<"\n">>}]}],[{file,"mod_echobot.erl"},{line,86}]},{ejabberd_router,route,3,[{file,"src/ejabberd_router.erl"},{line,75}]},{ejabberd_c2s,check_privacy_route,5,[{file,"src/ejabberd_c2s.erl"},{line,2121}]},{ejabberd_c2s,session_established2,2,[{file,"src/ejabberd_c2s.erl"},{line,1288}]},{p1_fsm,handle_msg,10,[{file,"src/p1_fsm.erl"},{line,582}]},{proc_lib,init_p_do_apply,3,[{file,"proc_lib.erl"},{line,237}]}]}
when processing: {{jid,<<"user1">>,<<"alchemy.local">>,<<"alchemy">>,<<"user1">>,<<"alchemy.local">>,<<"alchemy">>},{jid,<<>>,<<"echo.alchemy.local">>,<<>>,<<>>,<<"echo.alchemy.local">>,<<>>},{xmlel,<<"message">>,[{<<"xml:lang">>,<<"en">>},{<<"to">>,<<"echo.alchemy.local">>},{<<"id">>,<<"aacca">>}],[{xmlcdata,<<"\n">>},{xmlel,<<"subject">>,[],[]},{xmlcdata,<<"\n">>},{xmlel,<<"body">>,[],[{xmlcdata,<<"testme">>}]},{xmlcdata,<<"\n">>},{xmlel,<<"nick">>,[{<<"xmlns">>,<<"http://jabber.org/protocol/nick">>}],[{xmlcdata,<<"user1">>}]},{xmlcdata,<<"\n">>}]}}
2016-03-31 16:50:16.356 [debug] <0.447.0>@ejabberd_receiver:process_data:282 Received XML on stream = <<"\n">>