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Trying to run a pyBullet script, I kept getting this kind of error:
pybullet build time: Dec 1 2021 18:34:28
startThreads creating 1 threads.
starting thread 0
started thread 0
argc=2
argv[0] = --unused
argv[1] = --start_demo_name=Physics Server
ExampleBrowserThreadFunc started
X11 functions dynamically loaded using dlopen/dlsym OK!
X11 functions dynamically loaded using dlopen/dlsym OK!
libGL error: MESA-LOADER: failed to open radeonsi: /usr/lib/dri/radeonsi_dri.so: cannot open shared object file: No such file or directory (search paths /usr/lib/x86_64-linux-gnu/dri:\$${ORIGIN}/dri:/usr/lib/dri, suffix _dri)
libGL error: failed to load driver: radeonsi
libGL error: MESA-LOADER: failed to open radeonsi: /usr/lib/dri/radeonsi_dri.so: cannot open shared object file: No such file or directory (search paths /usr/lib/x86_64-linux-gnu/dri:\$${ORIGIN}/dri:/usr/lib/dri, suffix _dri)
libGL error: failed to load driver: radeonsi
libGL error: MESA-LOADER: failed to open swrast: /usr/lib/dri/swrast_dri.so: cannot open shared object file: No such file or directory (search paths /usr/lib/x86_64-linux-gnu/dri:\$${ORIGIN}/dri:/usr/lib/dri, suffix _dri)
libGL error: failed to load driver: swrast
Creating context
Failed to create GL 3.3 context ... using old-style GLX context
Failed to create an OpenGL context
I looked up this error, and there were lots of suggestions that didn’t work, like exporting the right environment variable, installing the amdgpu-pro drivers, etc. It turned out to be conflicts between the libstdc++ library expected by pyBullet and the version installed in my base anaconda environment.
After searching my anaconda directory for installations of libstdc++.so, I found multiple conflicting results:
Search:
sudo find / -wholename "*conda*/**/libstdc++.so*"
Result:
/home/danaukes/miniconda3/lib/libstdc++.so.6.0.28
/home/danaukes/miniconda3/lib/libstdc++.so
/home/danaukes/miniconda3/lib/libstdc++.so.6
/home/danaukes/miniconda3/pkgs/libstdcxx-ng-9.3.0-hd4cf53a_17/lib/libstdc++.so.6.0.28
/home/danaukes/miniconda3/pkgs/libstdcxx-ng-9.3.0-hd4cf53a_17/lib/libstdc++.so
/home/danaukes/miniconda3/pkgs/libstdcxx-ng-9.3.0-hd4cf53a_17/lib/libstdc++.so.6
/home/danaukes/miniconda3/pkgs/gcc_impl_linux-64-11.2.0-h82a94d6_13/x86_64-conda-linux-gnu/lib/libstdc++.so
/home/danaukes/miniconda3/pkgs/gcc_impl_linux-64-11.2.0-h82a94d6_13/x86_64-conda-linux-gnu/lib/libstdc++.so.6
/home/danaukes/miniconda3/pkgs/gcc_impl_linux-64-11.2.0-h82a94d6_13/x86_64-conda-linux-gnu/lib/libstdc++.so.6.0.29
/home/danaukes/miniconda3/pkgs/libstdcxx-ng-11.2.0-he4da1e4_13/lib/libstdc++.so
/home/danaukes/miniconda3/pkgs/libstdcxx-ng-11.2.0-he4da1e4_13/lib/libstdc++.so.6
/home/danaukes/miniconda3/pkgs/libstdcxx-ng-11.2.0-he4da1e4_13/lib/libstdc++.so.6.0.29
So I created a new environment, just for pybullet.
conda create -n pybullet
conda activate pybullet
conda install python
conda install pip
conda install -c conda-forge gcc
pip install pybullet
Spyder conflicts with this environment so I instead installed the ide-python package for atom. See the instructions here