Possilby, you are not using traci.start(...) which ensures that sumo and
traci are using the same port.
See
https://sumo.dlr.de/docs/TraCI/Interfacing_TraCI_from_Python.html#first_steps


Am Fr., 28. Feb. 2020 um 07:08 Uhr schrieb Pallavi Mandhare <
[email protected]>:

> Hi,
> How to resolve following error
>
> python3 main.py
>  Retrying in 1 seconds
> Error: Could not access configuration 'tgiv1.sumo.cfg'.
> Quitting (on error).
> Could not connect to TraCI server at localhost:8815 [Errno 111] Connection
> refused
>  Retrying in 2 seconds
> Could not connect to TraCI server at localhost:8815 [Errno 111] Connection
> refused
>  Retrying in 3 seconds
> Could not connect to TraCI server at localhost:8815 [Errno 111] Connection
> refused
>  Retrying in 4 seconds
> ^Z
> [2]+  Stopped                 python3 main.py
>
> --
> Thanks & Regards
> Pallavi Mandhare Burande
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