AttributeError: 'dict2' object has no attribute 'mj_ray'

[emanuelepesce]

When running the example code:

bin/examine.py mae_envs/envs/base.py

I get the following error:

Loading env from the module: mae_envs/envs/base.py
Creating window glfw
Traceback (most recent call last):
  File "bin/examine.py", line 91, in <module>
    main()
  File "/home/ep15/.local/lib/python3.6/site-packages/click/core.py", line 764, in __call__
    return self.main(*args, **kwargs)
  File "/home/ep15/.local/lib/python3.6/site-packages/click/core.py", line 717, in main
    rv = self.invoke(ctx)
  File "/home/ep15/.local/lib/python3.6/site-packages/click/core.py", line 956, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/home/ep15/.local/lib/python3.6/site-packages/click/core.py", line 555, in invoke
    return callback(*args, **kwargs)
  File "bin/examine.py", line 47, in main
    env_viewer=EnvViewer)
  File "/home/ep15/libraries/mujoco-worldgen/mujoco_worldgen/util/envs/examine_env.py", line 32, in examine_env
    env_viewer(env).run()
  File "/home/ep15/libraries/multi-agent-emergence-environments/mae_envs/viewer/env_viewer.py", line 23, in __init__
    self.env_reset()
  File "/home/ep15/libraries/multi-agent-emergence-environments/mae_envs/viewer/env_viewer.py", line 59, in env_reset
    self.env.reset()
  File "/home/ep15/libraries/multi-agent-emergence-environments/mae_envs/wrappers/util.py", line 89, in reset
    obs = self.env.reset()
  File "/home/ep15/anaconda3/envs/py366_hideseek/lib/python3.6/site-packages/gym/core.py", line 259, in reset
    observation = self.env.reset(**kwargs)
  File "/home/ep15/anaconda3/envs/py366_hideseek/lib/python3.6/site-packages/gym/core.py", line 259, in reset
    observation = self.env.reset(**kwargs)
  File "/home/ep15/anaconda3/envs/py366_hideseek/lib/python3.6/site-packages/gym/core.py", line 260, in reset
    return self.observation(observation)
  File "/home/ep15/libraries/multi-agent-emergence-environments/mae_envs/wrappers/line_of_sight.py", line 28, in observation
    self.metadata['agent_geom_idxs'][j])
  File "/home/ep15/libraries/multi-agent-emergence-environments/mae_envs/util/vision.py", line 54, in insight
    dist, collision_geom = raycast(sim, geom1_id, geom2_id=geom2_id, pt2=pt2)
  File "/home/ep15/libraries/mujoco-worldgen/mujoco_worldgen/util/geometry.py", line 40, in raycast
    dist = functions.mj_ray(sim.model,
AttributeError: 'dict2' object has no attribute 'mj_ray'

[ronak1997]

Did you end up fixing this? I am encountering the same error...

[emanuelepesce]

No, I didn't

[ronak1997]

Thanks for the reply. May I ask what kind of environment you were trying to run it on? Was it a VM? Ubuntu?

[emanuelepesce]

Ubuntu 18.04

[Jim-Song]

Thanks for the reply. May I ask what kind of environment you were trying to run it on? Was it a VM? Ubuntu?

ubuntu 18.04 VM

[jman22-maker]

I tried everyting and gave up after trying for 8 months I think this thing isn't real just a sick joke to get fools in a frenzy and waste time never have I ever wasted so mutch time on anyting all other worked better and all problems fixed fast.

…

On Wed 19 Aug 2020, 15:54 Jim-Song ***@***.***> wrote: Thanks for the reply. May I ask what kind of environment you were trying to run it on? Was it a VM? Ubuntu? ubuntu 18.04 VM — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub <#18 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ANUY7IYM3ZY6PLLLCSPJOSTSBPKSFANCNFSM4KS7R4UA> .

[daiyl]

My mujoco-py==1.50.1.0 has the same problem "AttributeError: 'dict2' object has no attribute 'mj_ray'".
You can update the mujoco-py. It will run successfully.

pip3 install -U 'mujoco-py<1.50.2,>=1.50.1'

[whancock]

Thanks daiyl, your suggestion worked. I had to run the patchelf command first though. Look at the dockerfile in https://github.com/openai/mujoco-py/blob/1.50.1.0/Dockerfile for reference