Dear sumo-users:
I am doing a traffic light program to optimize the timing of
traffic light by using Traci.But I met a problem,I need to simulate the
process again and again,then,I got this error:
Could not connect to TraCI server at localhost:55141 [Errno 111] Connection
refused
Retrying in 2 seconds
Could not connect to TraCI server at localhost:55141 [Errno 111] Connection
refused
Retrying in 3 seconds
Could not connect to TraCI server at localhost:55141 [Errno 111] Connection
refused
Retrying in 4 seconds
Could not connect to TraCI server at localhost:55141 [Errno 111] Connection
refused
Retrying in 5 seconds
Could not connect to TraCI server at localhost:55141 [Errno 111] Connection
refused
Retrying in 6 seconds
Could not connect to TraCI server at localhost:55141 [Errno 111] Connection
refused
Retrying in 7 seconds
Could not connect to TraCI server at localhost:55141 [Errno 111] Connection
refused
Retrying in 8 seconds
Could not connect to TraCI server at localhost:55141 [Errno 111] Connection
refused
Retrying in 9 seconds
Could not connect to TraCI server at localhost:55141 [Errno 111] Connection
refused
Retrying in 10 seconds
Could not connect to TraCI server at localhost:55141 [Errno 111] Connection
refused
Traceback (most recent call last):
File "main.py", line 78, in <module>
train(RL_natural)
File "main.py", line 26, in train
observation = env.reset()
File
"/home/huzhiqiang/traffic-signal-control/traci_tls_PER_8s_lr0.00025/trafficlight_env.py",
line 110, in reset
"--tripinfo-output", "tripinfo.xml"])
File "/home/huzhiqiang/sumo/tools/traci/__init__.py", line 86, in start
_connections[label] = connect(port, numRetries, "localhost",
sumoProcess)
File "/home/huzhiqiang/sumo/tools/traci/__init__.py", line 64, in connect
raise FatalTraCIError("Could not connect in %s tries" % (numRetries +
1))
traci.exceptions.FatalTraCIError: Could not connect in 11 tries
How can I fix it?
Best regards,
Zhiqiang
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