RPC server: BIND Error on Rerun

[obadul024]

I get a bind error if I run the standard scenario 6 and rereun it.

The command I run:
python3 scenario_runner.py --route srunner/data/routes_training_town03_autocast10.xml srunner/data/towns03_traffic_scenarios_autocast10.json --reloadWorld --bgtraffic 0 --agent AVR/autocast_agents/simple_agent.py --commlog --sharing --debug

The error I get when I Cntrl+C and rerun it:
File "scenario_runner.py", line 130, in __init__ self.traffic_manager = self.client.get_trafficmanager(int(self._args.trafficManagerPort)) RuntimeError: trying to create rpc server for traffic manager; but the system failed to create because of bind error

How I fix it:

1. first I list all listening ports
   sudo lsof -i -P -n | grep LISTEN
2. Then I kill it
   kill -9 pid

Is there a way to avoid this error?
Please advise.
thanks