Training fails in medium unity3D rllib walkthrough@SvenMika

How severe does this issue affect your experience of using Ray?

  • Low: It annoys or frustrates me for a moment.

I try to follow the great walkthrough article by Sven Mika in Medium to get started with Unity3D and rllib. The training for 3DBall fails with AttributeError: ‘DecisionSteps’ object has no attribute ‘group_reward’.

I am fairly well acquainted with rllib but not with Unity. Maybe the problem is very specific to my versions (Unity 2020.3.30f1 and ray 1.13.0). I guess I have to dive into the details. However, if you see that the article needs an update, that would be appreciated.

:wave:t3: Hi Fredrik! Welcome to the Ray community! Delighted to hear your use with RL. Tuesdays we have RLlib Office Hours, you can ask your question live. Would love to invite you to join the #rllib channel too on slack Ray Slack Invitation

I’ll ping our oncall if they are familiar with Unity, and I look forward to hearing more from you!