[sumo-user] Traci Server Connection Issue

[hemang kothari <hemangkothari000@xxxxxxxxx>]

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 

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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

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