Installation/Importting Error

[foolyc]

sudo pip3 install -e .

then sudo ./examples/simpool.py, it comes with

running build_ext
building 'mujoco_py.cymj' extension
x86_64-linux-gnu-gcc -pthread -DNDEBUG -g -fwrapv -O2 -Wall -g -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2 -fPIC -Imujoco_py -I/home/foolyc/local_install/mujoco-py/mujoco_py -I/home/foolyc/.mujoco/mjpro150/include -I/usr/local/lib/python3.5/dist-packages/numpy/core/include -I/home/foolyc/local_install/mujoco-py/mujoco_py/vendor/egl -I/usr/include/python3.5m -c /home/foolyc/local_install/mujoco-py/mujoco_py/cymj.c -o /home/foolyc/local_install/mujoco-py/mujoco_py/generated/_pyxbld_LinuxGPUExtensionBuilder/temp.linux-x86_64-3.5/home/foolyc/local_install/mujoco-py/mujoco_py/cymj.o -fopenmp -w

x86_64-linux-gnu-gcc -pthread -DNDEBUG -g -fwrapv -O2 -Wall -g -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2 -fPIC -Imujoco_py -I/home/foolyc/local_install/mujoco-py/mujoco_py -I/home/foolyc/.mujoco/mjpro150/include -I/usr/local/lib/python3.5/dist-packages/numpy/core/include -I/home/foolyc/local_install/mujoco-py/mujoco_py/vendor/egl -I/usr/include/python3.5m -c /home/foolyc/local_install/mujoco-py/mujoco_py/gl/eglshim.c -o /home/foolyc/local_install/mujoco-py/mujoco_py/generated/_pyxbld_LinuxGPUExtensionBuilder/temp.linux-x86_64-3.5/home/foolyc/local_install/mujoco-py/mujoco_py/gl/eglshim.o -fopenmp -w
x86_64-linux-gnu-gcc -pthread -shared -Wl,-O1 -Wl,-Bsymbolic-functions -Wl,-Bsymbolic-functions -Wl,-z,relro -Wl,-Bsymbolic-functions -Wl,-z,relro -g -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2 /home/foolyc/local_install/mujoco-py/mujoco_py/generated/_pyxbld_LinuxGPUExtensionBuilder/temp.linux-x86_64-3.5/home/foolyc/local_install/mujoco-py/mujoco_py/cymj.o /home/foolyc/local_install/mujoco-py/mujoco_py/generated/_pyxbld_LinuxGPUExtensionBuilder/temp.linux-x86_64-3.5/home/foolyc/local_install/mujoco-py/mujoco_py/gl/eglshim.o -L/home/foolyc/.mujoco/mjpro150/bin -Wl,--enable-new-dtags,-R/home/foolyc/.mujoco/mjpro150/bin -lmujoco150 -lglewegl -o /home/foolyc/local_install/mujoco-py/mujoco_py/generated/_pyxbld_LinuxGPUExtensionBuilder/lib.linux-x86_64-3.5/mujoco_py/cymj.cpython-35m-x86_64-linux-gnu.so -fopenmp
stat: No such file or directory
Traceback (most recent call last):
  File "./examples/simpool.py", line 4, in <module>
    from mujoco_py import load_model_from_xml, MjSim, MjSimPool
  File "/home/foolyc/local_install/mujoco-py/mujoco_py/__init__.py", line 1, in <module>
    from mujoco_py.builder import cymj, ignore_mujoco_warnings, functions, MujocoException
  File "/home/foolyc/local_install/mujoco-py/mujoco_py/builder.py", line 439, in <module>
    cymj = load_cython_ext(mjpro_path)
  File "/home/foolyc/local_install/mujoco-py/mujoco_py/builder.py", line 80, in load_cython_ext
    cext_so_path = builder.build()
  File "/home/foolyc/local_install/mujoco-py/mujoco_py/builder.py", line 187, in build
    built_so_file_path = self._build_impl()
  File "/home/foolyc/local_install/mujoco-py/mujoco_py/builder.py", line 249, in _build_impl
    join(get_nvidia_lib_dir(), 'libOpenGL.so.0'))
  File "/home/foolyc/local_install/mujoco-py/mujoco_py/builder.py", line 122, in fix_shared_library
    so_file])
  File "/usr/lib/python3.5/subprocess.py", line 581, in check_call
    raise CalledProcessError(retcode, cmd)
subprocess.CalledProcessError: Command '['patchelf', '--add-needed', '/usr/lib/nvidia-375/libOpenGL.so.0', '/home/foolyc/local_install/mujoco-py/mujoco_py/generated/_pyxbld_LinuxGPUExtensionBuilder/lib.linux-x86_64-3.5/mujoco_py/cymj.cpython-35m-x86_64-linux-gnu.so']' returned non-zero exit status 1

Any one

[foolyc]

I have solved this bug:

• install the mujoco_py from source code , sudo pip3 install -e .
• intstall patchelf 0.9 from source code patchelf
• cd mjpro150/bin and sudo cp *.so /usr/local/lib/, so that glfw.py can load shared lib
• then exec sudo python3 ./examples/simpool.py to build the mujoco_py.cymj

[abhigenie92]

Hi I was getting sort of similar error: https://github.com/openai/mujoco-py/issues/164. A few questions

1. From source you mean? Would that be python setup.py install?
2. How did you install patchelf?

Is there a reason to using sudo?

[abhigenie92]

@machinaut @foolyc It looks like there is a bug.

To get it to work I had to comment out --add-needed line 122 in ../lib/python3.6/site-packages/mujoco_py-1.50.1.28-py3.6.egg/mujoco_py/builder.py

Now I am getting this new error:

gonzo% python -c "import mujoco_py"
Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File "/nohome/jaan/abhishek/anaconda3/lib/python3.6/site-packages/mujoco_py-1.50.1.28-py3.6.egg/mujoco_py/__init__.py", line 1, in <module>
    from mujoco_py.builder import cymj, ignore_mujoco_warnings, functions, MujocoException
  File "/nohome/jaan/abhishek/anaconda3/lib/python3.6/site-packages/mujoco_py-1.50.1.28-py3.6.egg/mujoco_py/builder.py", line 439, in <module>
    cymj = load_cython_ext(mjpro_path)
  File "/nohome/jaan/abhishek/anaconda3/lib/python3.6/site-packages/mujoco_py-1.50.1.28-py3.6.egg/mujoco_py/builder.py", line 81, in load_cython_ext
    return load_dynamic_ext('cymj', cext_so_path)
  File "/nohome/jaan/abhishek/anaconda3/lib/python3.6/site-packages/mujoco_py-1.50.1.28-py3.6.egg/mujoco_py/builder.py", line 87, in load_dynamic_ext
    return loader.load_module()
ImportError: /nohome/jaan/.mujoco/mjpro150/bin/libglewegl.so: undefined symbol: eglGetProcAddress

[ryanjulian]

I also encountered this on Ubuntu 16.04 with GPU. Fixed by installed patchelf 0.9+ from a PPA:

sudo add-apt-repository ppa:jamesh/snap-support
sudo apt-get update
sudo apt install patchelf

[ghost]

If using anaconda virtual environment, then this one line does the job conda install -c anaconda patchelf

[astier]

For me it was enough to execute:

conda install patchelf

[emigmo]

FOR CONDA-ONLY user 1: conda install -c menpo osmesa 2: install patchelf from source or conda install patchelf if install from source, we should update the $PATH variable

[JamieShelley]

I also encountered this on Ubuntu 16.04 with GPU. Fixed by installed patchelf 0.9+ from a PPA:

sudo add-apt-repository ppa:jamesh/snap-support
sudo apt-get update
sudo apt install patchelf

Not all hero's wear capes

[gaoyuankidult]

My problem was that my version of patchelf was 8.4. It was the default version in Ubuntu 16.04 repo. You should down 0.9 version and install https://nixos.org/releases/patchelf/patchelf-0.9/patchelf-0.9.tar.gz. Source: http://zktang.farbox.com/post/install-mujoco-py

[MrDadaGuy]

I did not need to add the other repository, I was able to get it just using

sudo apt install patchelf

thanks

[gautams3]

I did not need to add the other repository, I was able to get it just using

sudo apt install patchelf

thanks

This worked for me on Ubuntu 18.04 with a GPU. FYI it installed 0.9-1, not the latest 0.10

patchelf/bionic,now 0.9-1 amd64

[wang88256187]

I did not need to add the other repository, I was able to get it just using sudo apt install patchelf thanks

This worked for me on Ubuntu 18.04 with a GPU. FYI it installed 0.9-1, not the latest 0.10

patchelf/bionic,now 0.9-1 amd64

thanks，are also interest in RL? Can I be friends with you? so that we can talk about together and move on ?

[alifahsanul]

this line do the job sudo apt install patchelf

[SimeonOA]

I did not need to add the other repository, I was able to get it just using

sudo apt install patchelf

thanks

This worked for me. Thank you.

[yulonglin]

Similar to the conda install solutions, I was able to solve this using pip in my conda environment: pip install patchelf