ElegantRL
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gym version requirements
@Yonv1943 Gym version=0.21 caused get_gym_env_args(gym.make("BipedalWalker-v3"), if_print=False) in the Part 3 of tutorial_BipedalWalker_v3.ipynb failed. Gym version 0.21 cannot register BipedalWalker-v3 and LunarLanderContinuous-v2, while version 0.17.0 worked fine.
The install requirements requirements.txt and setup.py should be double checked.