RuntimeError: Window rendering not supported

[giorgionicola]

Describe the bug
I am working with the library for keras-rl (https://github.com/keras-rl/keras-rl) when I try to run any algorithm workin on a mujoco environment the visualization fails giving me an error in the mujoco-py package:

File "ddpg_mujoco.py", line 76, in <module>
agent.test(env, nb_episodes=5, visualize=True, nb_max_episode_steps=200)
File "/media/DATA/anaconda3/envs/kerasrl/lib/python3.6/site-packages/rl/core.py", line 353, in test callbacks.on_action_end(action) File "/media/DATA/anaconda3/envs/kerasrl/lib/python3.6/site-packages/rl/callbacks.py", line 101, in on_action_end
callback.on_action_end(action, logs=logs)
File "/media/DATA/anaconda3/envs/kerasrl/lib/python3.6/site-packages/rl/callbacks.py", line 366, in on_action_end
self.env.render(mode='human')
File "/media/DATA/anaconda3/envs/kerasrl/lib/python3.6/site-packages/gym/core.py", line 275, in render
return self.env.render(mode, **kwargs)
File "/media/DATA/anaconda3/envs/kerasrl/lib/python3.6/site-packages/gym/core.py", line 275, in render
return self.env.render(mode, **kwargs)
File "/media/DATA/anaconda3/envs/kerasrl/lib/python3.6/site-packages/gym/envs/mujoco/mujoco_env.py", line 118, in render
self._get_viewer(mode).render()
File "/media/DATA/anaconda3/envs/kerasrl/lib/python3.6/site-packages/gym/envs/mujoco/mujoco_env.py", line 130, in _get_viewer
self.viewer = mujoco_py.MjViewer(self.sim)
File "/media/DATA/anaconda3/envs/kerasrl/lib/python3.6/site-packages/mujoco-py/mujoco_py/mjviewer.py", line 133, in __init__
super().__init__(sim)
File "/media/DATA/anaconda3/envs/kerasrl/lib/python3.6/site-packages/mujoco-py/mujoco_py/mjviewer.py", line 26, in __init__
super().__init__(sim)
File "mjrendercontext.pyx", line 278, in mujoco_py.cymj.MjRenderContextWindow.__init__
File "mjrendercontext.pyx", line 66, in mujoco_py.cymj.MjRenderContext.__init__
File "mjrendercontext.pyx", line 87, in mujoco_py.cymj.MjRenderContext._set_mujoco_buffers
RuntimeError: Window rendering not supported

It is not clear to me the meaning of the error. Any help would be appreciated

Desktop (please complete the following information):

• OS: Ubuntu 16.04
• Python Version 3.6.7
• Mujoco Version 1.50
• mujoco-py version 1.50.1.68

Environment

• output of: echo $LD_LIBRARY_PATH
/usr/local/cuda/extras/CUPTI/lib64:/home/tartaglia/Libraries/mujoco/mjpro150/bin:/usr/lib/nvidia-384:/home/tartaglia/catkin_ws/devel/lib:/opt/ros/kinetic/lib:/opt/ros/kinetic/lib/x86_64-linux-gnu:/usr/local/cuda/lib64:/home/tartaglia/gpu_voxels/export/lib

• output of: echo $HOME
/home/tartaglia

• output of: echo $USER
tartaglia

[vitchyr]

I'm not sure what causes this, but a work-around that works for me is to use env.sim.render(width=w, height=h, camera_name=...)

[huangjiancong1]

Describe the bug
I am working with the library for keras-rl (https://github.com/keras-rl/keras-rl) when I try to run any algorithm workin on a mujoco environment the visualization fails giving me an error in the mujoco-py package:

File "ddpg_mujoco.py", line 76, in <module>
agent.test(env, nb_episodes=5, visualize=True, nb_max_episode_steps=200)
File "/media/DATA/anaconda3/envs/kerasrl/lib/python3.6/site-packages/rl/core.py", line 353, in test callbacks.on_action_end(action) File "/media/DATA/anaconda3/envs/kerasrl/lib/python3.6/site-packages/rl/callbacks.py", line 101, in on_action_end
callback.on_action_end(action, logs=logs)
File "/media/DATA/anaconda3/envs/kerasrl/lib/python3.6/site-packages/rl/callbacks.py", line 366, in on_action_end
self.env.render(mode='human')
File "/media/DATA/anaconda3/envs/kerasrl/lib/python3.6/site-packages/gym/core.py", line 275, in render
return self.env.render(mode, **kwargs)
File "/media/DATA/anaconda3/envs/kerasrl/lib/python3.6/site-packages/gym/core.py", line 275, in render
return self.env.render(mode, **kwargs)
File "/media/DATA/anaconda3/envs/kerasrl/lib/python3.6/site-packages/gym/envs/mujoco/mujoco_env.py", line 118, in render
self._get_viewer(mode).render()
File "/media/DATA/anaconda3/envs/kerasrl/lib/python3.6/site-packages/gym/envs/mujoco/mujoco_env.py", line 130, in _get_viewer
self.viewer = mujoco_py.MjViewer(self.sim)
File "/media/DATA/anaconda3/envs/kerasrl/lib/python3.6/site-packages/mujoco-py/mujoco_py/mjviewer.py", line 133, in __init__
super().__init__(sim)
File "/media/DATA/anaconda3/envs/kerasrl/lib/python3.6/site-packages/mujoco-py/mujoco_py/mjviewer.py", line 26, in __init__
super().__init__(sim)
File "mjrendercontext.pyx", line 278, in mujoco_py.cymj.MjRenderContextWindow.__init__
File "mjrendercontext.pyx", line 66, in mujoco_py.cymj.MjRenderContext.__init__
File "mjrendercontext.pyx", line 87, in mujoco_py.cymj.MjRenderContext._set_mujoco_buffers
RuntimeError: Window rendering not supported

It is not clear to me the meaning of the error. Any help would be appreciated

Desktop (please complete the following information):

• OS: Ubuntu 16.04
• Python Version 3.6.7
• Mujoco Version 1.50
• mujoco-py version 1.50.1.68

Environment

• output of: echo $LD_LIBRARY_PATH
/usr/local/cuda/extras/CUPTI/lib64:/home/tartaglia/Libraries/mujoco/mjpro150/bin:/usr/lib/nvidia-384:/home/tartaglia/catkin_ws/devel/lib:/opt/ros/kinetic/lib:/opt/ros/kinetic/lib/x86_64-linux-gnu:/usr/local/cuda/lib64:/home/tartaglia/gpu_voxels/export/lib
• output of: echo $HOME
/home/tartaglia
• output of: echo $USER
tartaglia

Hi，@giorgionicola， I have same issue like your, have you fixed it?

[huangjiancong1]

I fixed it in #187 (comment)