simtk.org

Dear,

When following the installation guide on the website: https://simtk-confluence.stanford.edu:8 ... +in+Python
the following error appears:

ImportError: DLL load failed while importing _simbody: cannot find given module.

The website says: 'If you get an error about loading DLL failure check that PATH has been updated correctly before relaunching the shell' () but I feel like the path is correct and the simbody file is in the map (see ).

How and to which path should I change to be able to import _simbody?

I am looking forward to your response.

Kind regards,

Jip Helsloot

Hi, please specify the versions of OpenSim and Python installed. Also, do you use official Python or Conda distribution?

Hello, for me this helped:
I guess you are using windows...
I had to add these two lines before every opensim import...

import os
os.add_dll_directory("C:/OpenSim 4.4/bin")

"C:/OpenSim 4.4/bin" could be different depending on where you installed Opensim

I tried this because I am working on windows:
import os
os.add_dll_directory("C:/OpenSim 4.4/bin")
Unfortunately this didn't work for me, I still get the same error.


@Mohammadreza Rezaie
My OpenSim version is 4.4 and my python version is 3.9
I used anaconda and spyder.

Best,

Jip

The package comes with OpenSim 4.4 installer works with Python 3.8 only. But you can use the conda package that works with recent versions: https://anaconda.org/opensim-org/opensim