Error met when running manyagent_ant

[submit-paper]

I try to run the code and follow the readme.md. I succeed in running Ant-v2 and Halfcheetah-v2 map but when running manyagent_ant. an error encountered as below:

I use mujoco_py==2.0.2.8, which is the same as the version in requirements.txt. If this is an issue about the version of packages, I hope you can update the requirementx.txt and we can use the correct environment. Thank you!

[submit-paper]

Oh, I find a strange thing that when I try to execute the train_mujoco.sh for several times, it seems that sometimes the environment can run normally. I think this is strange and I don't know whether you have met such a problem. Anyway, I think this issue is very inconvenient to run your code!