Deutsches Zentrum für Luft- und Raumfahrt e.V. (DLR)
Institut für Verkehrssystemtechnik | Rutherfordstraße 2 | 12489 Berlin
Dr.-Ing. Gregor Lämmel | Simulation und Modellierung
Telefon 030 67055-9141 | Telefax 030 67055-291 | gregor.laemmel@xxxxxx
www.DLR.de | Institut für Verkehrssystemtechnik
Hello Hemang,
It seems that python isn't able to resolve the IP address for localhost by name (which would be 127.0.0.1).
Can you verify whether it is defined in /etc/hosts
Please see also:
https://stackoverflow.com/questions/39970606/gaierror-errno-8-nodename-nor-servname-provided-or-not-known-with-macos-sie
Best wishes
Gregor
---------- Forwarded message ----------
From: hemang kothari <hemangkothari000@xxxxxxxxx>
Date: 2017-11-14 9:31 GMT+01:00
Subject: [sumo-user] Traci Server Connection Issue
To: Sumo project User discussions <sumo-user@xxxxxxxxxxx>
Hello,
I have been trying to learn traci.
When i try to run traci_tls tutorial , i got following error
If you have some solution then kindly provide me
Thanks
------------------------------------------------------------------------------------------
MacBook-Air:traci_tls hemangkothari$ python runner.py
Could not connect to TraCI server at localhost:56096 [Errno 8] nodename nor servname provided, or not known
Retrying in 1 seconds
Fontconfig warning: ignoring UTF-8: not a valid region tag
Loading configuration... done.
Could not connect to TraCI server at localhost:56096 [Errno 8] nodename nor servname provided, or not known
Retrying in 2 seconds
Could not connect to TraCI server at localhost:56096 [Errno 8] nodename nor servname provided, or not known
Retrying in 3 seconds
Could not connect to TraCI server at localhost:56096 [Errno 8] nodename nor servname provided, or not known
Retrying in 4 seconds
Could not connect to TraCI server at localhost:56096 [Errno 8] nodename nor servname provided, or not known
Retrying in 5 seconds
Could not connect to TraCI server at localhost:56096 [Errno 8] nodename nor servname provided, or not known
Retrying in 6 seconds
Could not connect to TraCI server at localhost:56096 [Errno 8] nodename nor servname provided, or not known
Retrying in 7 seconds
Could not connect to TraCI server at localhost:56096 [Errno 8] nodename nor servname provided, or not known
Retrying in 8 seconds
Could not connect to TraCI server at localhost:56096 [Errno 8] nodename nor servname provided, or not known
Retrying in 9 seconds
Could not connect to TraCI server at localhost:56096 [Errno 8] nodename nor servname provided, or not known
Retrying in 10 seconds
Could not connect to TraCI server at localhost:56096 [Errno 8] nodename nor servname provided, or not known
Traceback (most recent call last):
File "runner.py", line 135, in <module>
"--tripinfo-output", "tripinfo.xml"])
File "/Users/hemangkothari/Documents/sumo-0.31.0/tools/traci/__init__.py", line 86, in start
_connections[label] = connect(port, numRetries, "localhost", sumoProcess)
File "/Users/hemangkothari/Documents/sumo-0.31.0/tools/traci/__init__.py", line 64, in connect
raise FatalTraCIError(str(e))
traci.exceptions.FatalTraCIError: [Errno 8] nodename nor servname provided, or not known
--
Work brings profit, but mere talk leads to poverty!
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