Issue with Running MAPPO on SafetyAntMultiGoal1-v0 Environment

[JingjieNi]

Hello,

I hope this message finds you well. I am currently experiencing an issue while running the MAPPO algorithm on the SafetyAntMultiGoal1-v0 environment. Here's a detailed description of my situation:

I am operating on a Windows system and have been able to run the mappo.py script without any issues when using the default settings. However, upon changing the task name to "SafetyAntMultiGoal1-v0," I encounter the following error:

I have tried running the code both from an IDE and via the command line. I have also double-checked that the task name is correctly specified, but the problem persists. Despite my efforts, I have not been able to resolve this issue.

I would greatly appreciate any insights or suggestions you might have regarding this matter. Your assistance in troubleshooting this problem would be invaluable to me. Thanks.