Error with Live32 Duckietown_DeepQLearning

When I tried to run roslaunch lane_following start_training_deepql.launch I received an error as shown in the figure.
The timestep_limit causes an error. Do you have any suggestion ?

Thanks

I tried this on my local ubuntu

problem solved, Solved this error. the timestep_limit is renamed as max_episode_steps in the new gym libraries.

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