I just tried this again on Mac. Just in case it helps someone else: It worked for me when I made sure that the python version that I used (3.11) was the same as the one that downloaded the files with conda.

Hi all, Tried installing OpenSim on my M1 mac using the conda environment, Here are the exact steps I took: -Opened a terminal on x86_64. -sudo conda create -n opensimEnv python=3.9 -conda activate opensimEnv -sudo conda install -c opensim-org opensim After opening python and importing opensim, I ge...

Just debugged this issue on a student's computer. Adding these lines worked in his case:

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

Thanks Mohammadreza and Jia. Just a question for the community: I have two students (one on Mac M1 and one on Windows) where they have successfully installed Opensim on their computers, but the Simbody GUI does not show up when running their code (after "model.setUseVisualizer(True)"). I remember se...

Thanks Carmichael. These exact lines you posted did not work with me ("No module name opensim" error). However, it is with osx 12.3. I was able to fix the problem with the student's computer by adding these lines: import sys osim_path = 'D:/Dokumente/Programme/OpenSim/opensim-core/sdk/Python' sys.pa...

Thanks a lot Ayman. I tried installing OpenSim on Mac (with Rosetta on an M1) with conda (conda install -c opensim-org opensim) on a student computer, however, when importing opensim in python, I got the error: "no module named opensim". If you have an idea on what could have caused this, please let...

Thanks so much Ayman, installing opensim worked. When trying to install opensim-moco (conda install -c opensim-org opensim-moco), I constantly get the same error, even when trying different python versions (3.7, 3.8, 3.10): UnsatisfiableError: The following specifications were found to be incompatib...

Thanks Ayman and Nathan. I had previously attempted to install with the instructions: https://simtk-confluence.stanford.edu:8443/display/OpenSim/Scripting+in+Python#ScriptinginPython-Mac I had tried on arm, but will try again with x86_64. I just saw these new instructions here: https://simtk-conflue...

Thanks Ayman. If I just use conda/Anaconda instead of the libraries from the Application, I get the following error message: Traceback (most recent call last): File "<stdin>", line 1, in <module> File "/Users/mazen/opt/anaconda3/envs/opensim_scripting/lib/python3.8/site-packages/opensim/__init__.py"...

Hi Everyone, I'm trying to install OpenSim 4.4 with Python scripting with anaconda (instructions here: https://simtk-confluence.stanford.edu:8443/display/OpenSim/Scripting+in+Python). My python version is 3.8.16. When I do import opensim in python,. I get the following error: import opensim as osim ...