Ошибка ([Errno 111] В соединении отказано) в жилах (sumo-launchd.py)

я хочу использовать вены для совместного моделирования OMNeT ++ сетевой симулятор и симулятор дорожного движения SUMO.

В Veins есть демон sumo-launchd (написанный на Python), который предназначен для работы в фон, прослушивание входящих запросов. При каждом входящем соединении он получает настройки моделирования в формате XML, затем запускает отдельный экземпляр SUMO и передает запросы между OMNeT ++ и SUMO.

Когда я запускаю sumo-launchd.py (после открытия OMNet ++ и начните моделирование) в терминале, я получаю следующую проблему, которая, как мне кажется, связана с Python.

bluemix@blueMix:~/SUMO/veins-2.1/examples/veins$ python /home/bluemix/SUMO/veins-2.1/sumo-launchd.py -vv -c /home/bluemix/SUMO/sumo-0.19.0/bin/sumo
Logging to /tmp/sumo-launchd.log
Listening on port 9999
Connection from 127.0.0.1 on port 45234
Handling connection from 127.0.0.1 on port 45234
Got TraCI message of length 2
Got TraCI command of length 1
Got TraCI command 0x0
Got CMD_GETVERSION
Got TraCI message of length 314
Got TraCI command of length 309
Got TraCI command 0x75
Got CMD_FILE_SEND for "sumo-launchd.launch.xml"
Got CMD_FILE_SEND with data "<launch>
  <copy file="erlangen.net.xml"/>
  <copy file="erlangen.rou.xml"/>
  <copy file="erlangen.poly.xml"/>
  <copy file="erlangen.sumo.cfg" type="config"/>
  <basedir path="/home/bluemix/OMNeTpp/omnetpp-4.3.1/samples/mixim/examples/veins/"/>
  <seed value="0"/>
</launch>
"
Creating temporary directory...
Temporary dir is /tmp/sumo-launchd-tmp-2JQTRd
Base dir is /home/bluemix/OMNeTpp/omnetpp-4.3.1/samples/mixim/examples/veins/
Seed is 0
Finding free port number...
Claiming lock on port
...found port 41320
Starting SUMO (/home/bluemix/SUMO/sumo-0.19.0/bin/sumo -c erlangen.sumo.cfg) on port 41320, seed 0
Connecting to SUMO (/home/bluemix/SUMO/sumo-0.19.0/bin/sumo -c erlangen.sumo.cfg) on port 41320 (try 1)
Error ([Errno 111] Connection refused)
Connecting to SUMO (/home/bluemix/SUMO/sumo-0.19.0/bin/sumo -c erlangen.sumo.cfg) on port 41320 (try 2)
Error ([Errno 111] Connection refused)
Connecting to SUMO (/home/bluemix/SUMO/sumo-0.19.0/bin/sumo -c erlangen.sumo.cfg) on port 41320 (try 3)
Error ([Errno 111] Connection refused)
Connecting to SUMO (/home/bluemix/SUMO/sumo-0.19.0/bin/sumo -c erlangen.sumo.cfg) on port 41320 (try 4)
Error ([Errno 111] Connection refused)
Connecting to SUMO (/home/bluemix/SUMO/sumo-0.19.0/bin/sumo -c erlangen.sumo.cfg) on port 41320 (try 5)
Error ([Errno 111] Connection refused)
Connecting to SUMO (/home/bluemix/SUMO/sumo-0.19.0/bin/sumo -c erlangen.sumo.cfg) on port 41320 (try 6)
Error ([Errno 111] Connection refused)
Connecting to SUMO (/home/bluemix/SUMO/sumo-0.19.0/bin/sumo -c erlangen.sumo.cfg) on port 41320 (try 7)
Error ([Errno 111] Connection refused)
Connecting to SUMO (/home/bluemix/SUMO/sumo-0.19.0/bin/sumo -c erlangen.sumo.cfg) on port 41320 (try 8)
Error ([Errno 111] Connection refused)
Connecting to SUMO (/home/bluemix/SUMO/sumo-0.19.0/bin/sumo -c erlangen.sumo.cfg) on port 41320 (try 9)
Error ([Errno 111] Connection refused)
Connecting to SUMO (/home/bluemix/SUMO/sumo-0.19.0/bin/sumo -c erlangen.sumo.cfg) on port 41320 (try 10)
Error ([Errno 111] Connection refused)
Releasing lock on port
Cleaning up
Result: "<?xml version="1.0"?>
<status>
    <exit-code>-1</exit-code>
    <start>1390404178</start>
    <end>1390404189</end>
    <status>Could not connect to SUMO ([Errno 111] Connection refused). Might be protected by a personal firewall or crashed before a connection could be established.</status>
    <stdout><![CDATA[Loading configuration... done.
]]></stdout>
    <stderr><![CDATA[Error: Empty edges in roundabout.
Quitting (on error).
]]></stderr>
</status>
"
Closing connection from 127.0.0.1 on port 45234
^CKeyboard interrupt.
Shutting down.

и информация из консоли OMNeT ++:

<!> Error in module (TraCIScenarioManagerLaunchd) scenario.manager (id=6) at event #1, t=0: Model error: Connection to TraCI server lost. Check your server's log. Error message: 104: Connection reset by peer.

TRAPPING on the exception above, due to a debug-on-errors=true configuration option. Is your debugger ready?

Simulation terminated with exit code: 2

Я погуглил (1, 2) проблема, но не совсем такая, как у меня. Заранее спасибо.