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> Competition server error: getBackPositionOnLane(const MSLane*) const: Assertion `false' failed

Hi!

My experiment on the competition server fails with the following:

sumo: /build/sumo-q3tP8N/sumo-1.3.1+dfsg1/src/microsim/MSVehicle.cpp:4066: virtual double MSVehicle::getBackPositionOnLane(const MSLane*) const: Assertion `false' failed.
Traceback (most recent call last):
File "/tmp/codalab/tmpkSPQ5h/run/program/evaluate.py", line 161, in
observation = env.reset()
File "/tmp/codalab/tmpkSPQ5h/run/program/deps/gym_hiway/env/competition_env.py", line 154, in reset
obs = self._engine.reset()
File "/tmp/codalab/tmpkSPQ5h/run/program/deps/hiway/game_engine.py", line 132, in reset
self.setup()
File "/tmp/codalab/tmpkSPQ5h/run/program/deps/hiway/game_engine.py", line 160, in setup
sim.setup()
File "/tmp/codalab/tmpkSPQ5h/run/program/deps/hiway/bullet_simulation.py", line 63, in setup
self._traffic_sim.setup()
File "/tmp/codalab/tmpkSPQ5h/run/program/deps/hiway/sumo_traffic_simulation.py", line 137, in setup
[tc.VAR_DEPARTED_VEHICLES_IDS, tc.VAR_ARRIVED_VEHICLES_IDS])
File "/usr/share/sumo/tools/traci/_simulation.py", line 538, in subscribe
Domain.subscribe(self, "", varIDs, begin, end)
File "/usr/share/sumo/tools/traci/domain.py", line 142, in subscribe
self._subscribeID, begin, end, objectID, varIDs)
File "/usr/share/sumo/tools/traci/connection.py", line 226, in _subscribe
result = self._sendExact()
File "/usr/share/sumo/tools/traci/connection.py", line 98, in _sendExact
raise FatalTraCIError("connection closed by SUMO")
traci.exceptions.FatalTraCIError: connection closed by SUMO
WARNING:SumoTrafficSimulation:Nothing to teardown

Do you now if this error is due to my code?

Posted by: Team_29 @ Nov. 11, 2019, 9:36 a.m.

Do you see this error consistently? Please try re-submitting your submission and let us know if it sorts itself out.

Posted by: HuaweiUK @ Nov. 12, 2019, 2:42 p.m.
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