PPOPolicyGraph module not found

Flatland Challenge
#1

I am trying to run train_experiment.py in the baselines/RLLib_training folder, but the import PPOPolicy Graph doesn’t exist. I’ve looked through the source code of ray/rllib/agents/ppo and there is indeed no such module. Help.

  File "render_training_result.py", line 8, in <module>
from ray.rllib.agents.ppo.ppo_policy_graph import PPOPolicyGraph as PolicyGraph
ModuleNotFoundError: No module named 'ray.rllib.agents.ppo.ppo_policy_graph'
#2

Which version of ray are you using ? With version 0.7.0, the import should work.

#3

Works with 0.7.0! Although, I have a host of new errors now. Thanks anyway!