Running minicity error

[SHITIANYU-hue]

Hi,

I am wondering how to launch a minicity scenario. I followed the document: https://smarts.readthedocs.io/en/latest/sim/visualization.html

build scenarios/sumo/loop

scl scenario build --clean scenarios/sumo/loop

run an experiment

scl run --envision examples/single_agent.py scenarios/sumo/loop

And I changed as:

build scenarios/sumo/minicity

scl scenario build --clean scenarios/sumo/minicity

run an experiment

scl run --envision examples/single_agent.py scenarios/sumo/minicity/

But it will have this error:

Traceback (most recent call last):
File "examples/single_agent.py", line 86, in
main(
File "examples/single_agent.py", line 58, in main
observation = env.reset()
File "/home/tianyu/code/simulator/SMARTS/smarts/env/wrappers/single_agent.py", line 74, in reset
obs = self.env.reset()
File "/home/tianyu/code/simulator/SMARTS/smarts/env/hiway_env.py", line 269, in reset
env_observations = self._smarts.reset(scenario)
File "/home/tianyu/code/simulator/SMARTS/smarts/core/smarts.py", line 408, in reset
raise first_exception
File "/home/tianyu/code/simulator/SMARTS/smarts/core/smarts.py", line 401, in reset
return self._reset(scenario, start_time)
File "/home/tianyu/code/simulator/SMARTS/smarts/core/smarts.py", line 456, in _reset
observations_for_ego, _, _, _ = self.step({})
File "/home/tianyu/code/simulator/SMARTS/smarts/core/smarts.py", line 226, in step
return self._step(agent_actions, time_delta_since_last_step)
File "/home/tianyu/code/simulator/SMARTS/smarts/core/smarts.py", line 281, in _step
provider_state = self._step_providers(all_agent_actions)
File "/home/tianyu/code/simulator/SMARTS/smarts/core/smarts.py", line 1232, in _step_providers
provider_state = self._handle_provider(provider, provider_error)
File "/home/tianyu/code/simulator/SMARTS/smarts/core/smarts.py", line 1147, in _handle_provider
provider_state, recovered = provider.recover(
File "/home/tianyu/code/simulator/SMARTS/smarts/core/sumo_traffic_simulation.py", line 452, in recover
raise error
File "/home/tianyu/code/simulator/SMARTS/smarts/core/smarts.py", line 1226, in _step_providers
provider_state = provider.step(
File "/home/tianyu/code/simulator/SMARTS/smarts/core/sumo_traffic_simulation.py", line 462, in step
self._last_provider_state = self._step(dt)
File "/home/tianyu/code/simulator/SMARTS/smarts/core/sumo_traffic_simulation.py", line 473, in _step
return self._compute_provider_state()
File "/home/tianyu/code/simulator/SMARTS/smarts/core/sumo_traffic_simulation.py", line 746, in _compute_provider_state
self._traffic_light_states()
File "/home/tianyu/code/simulator/SMARTS/smarts/core/sumo_traffic_simulation.py", line 733, in _traffic_light_states
sig_id, self._create_signal_state(sig_id, controlled_links)
File "/home/tianyu/code/simulator/SMARTS/smarts/core/sumo_traffic_simulation.py", line 710, in _create_signal_state
incoming_lane = self._scenario.road_map.lane_by_id(incoming_lane_id)
File "/home/tianyu/code/simulator/SMARTS/smarts/core/sumo_road_network.py", line 632, in lane_by_id
sumo_lane = self.graph.getLane(lane_id)
File "/home/tianyu/code/simulator/SMARTS/.venv/lib/python3.8/site-packages/sumo/tools/sumolib/net/init.py", line 261, in getLane
edge_id, lane_index = laneID.rsplit("", 1)
AttributeError: 'NoneType' object has no attribute 'rsplit'

[Gamenot]

Hello @SHITIANYU-hue, I apologise that this example was not working. We are to merge in #1788 to fix it.

It will be up on the develop branch or available through git cherry-pick 376bceb. I may merge the current develop branch into master later today.

[Gamenot]

#1788 should have fixed this issue.