OpenSim 4.5 and matlab

[john pope]

I recently received a new mac pro M3. I reinstalled OpenSim on the new cpu and I am now unable to run any OpenSim files in MATLAB. The error i receive is below. I have already been through the simtk scripting with matlab tutorial and trouble shooting.

I have tried adding OpenSim to PATH: In the shell configuration file. NO luck

can you please point me in the right direction?


>> import org.opensim.modeling.*
model = Model();
disp(model)
Failed to load one or more dynamic libraries for OpenSim.
java.lang.UnsatisfiedLinkError: no osimJavaJNI in java.library.path: [/Applications/MATLAB_R2024a.app/bin/maca64, /Applications/MATLAB_R2024a.app/sys/jxbrowser/maca64/lib, /Applications/OpenSim 4.5/opensim-moco-0.4.0/sdk/lib]
Java exception occurred:
java.lang.UnsatisfiedLinkError: 'long
org.opensim.modeling.opensimSimulationJNI.new_Model__SWIG_0()'
at org.opensim.modeling.opensimSimulationJNI.new_Model__SWIG_0(Native Method)
at org.opensim.modeling.Model.<init>(Model.java:779)

[Carmichael Ong]

This error message is indeed a bit cryptic and misleading. With the newer versions of MATLAB, there are now two versions of MATLAB for Mac (Intel and Apple Silicon). OpenSim 4.5 only has libraries that work with the Intel installation, so make sure to use that version of MATLAB. Even though your laptop is not an Intel laptop, it will still be able to use that version.

More info can be found in this other post: viewtopicPhpbb.php?f=91&t=18597&p=50742&start=0&view=