Errors when using Gym-Unity 0.14.1 and 0.15.0

I'm getting this error as soon as an agent is done in the environment when I use gym-unity-0.14.1 and gym-unity-0.15.0:
I think it's because of the update in gym-unity-0.14.1: #3496 .
BTW, I don't think there're something wrong about my code. Because it runs properly when I use gym-unity-0.14.0.
Looking forward to your reply. Thank you!

 

Sorry for the delay. I can reproduce this error by modifying one of our example environments, so I'll work on a fix today.

At least for my case, this seems to be due to an Agent calling EndEpisode twice in the same step.

 

The fix for this is in https://github.com/Unity-Technologies/ml-agents/pull/3700; we'll be doing a patch release early next week that will contain the fix.

 

Thank you sooooo much.
In my case, the single Agent only calls EndEpisode() once, but the error still appears.
Maybe I missed something wrong.

Waiting for the new release!

 

Oh, I add "print("success")" after "EndEpisode()". The Agent definitely calls EndEpisode twice in the same step. Because it prints twice.
But I don't know what's the reason is. I built the environment following the guide in docs.