openCap processing error

[Karen Lomond]

I recently had to reinstall anaconda/open cap processing/open sim and when performing the following step:
% conda install -c opensim-org opensim=4.4.1=py310np121
the code fails when solving the environment. The error appears to be a missing file/channel - libcxx


Any thoughts on what I am missing? Or better still, where to find it?

[Antoine Falisse]

Are you using an anaconda environment with python 3.10?

[Karen Lomond]

Yes I'm following the exact steps on : https://github.com/stanfordnmbl/opencap ... me-ov-file
I open anaconda3 on the Anaconda navigator and use it to open terminal - which is what I thought I did previously ... but clearly I've missed a step.

[Matt Petrucci]

Hi Karen, quick clarification, are you on Mac?

Also, if you can share a screen cap of the full error it might be helpful.

[Karen Lomond]

Apologies - yes I am on a mac. See the screen shot attached.

[Antoine Falisse]

I think you forgot the screenshot

[Karen Lomond]

Sorry I guess the file was too large to attach initially.

[Matt Petrucci]

Hi Karen, thanks for the screenshot!

Have you tried not specifying the opensim version or trying 4.5? The commands would be:

conda install -c opensim-org opensim
or
conda install -c opensim-org opensim=4.5=py311np123

just curious if you get the same error.

[Karen Lomond]

The first command appears to work! but the second (specifying version 4.5) returns the original error.

[Matt Petrucci]

Great! Are you able to complete all the rest of the setup in the readme with the first command?