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CustomJoint 'ankle_r' has collinear axes and are not well-defined #4293

@nigrape

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@nigrape

Hi everybody,

OS: Ubuntu Noble with Wayland
OpenSim version : OpenSim 4.6 (build from here https://github.com/opensim-org/opensim-gui/wiki/Build-Instructions#build-instructions-1)

I'm currently learning how to use OpenSim and I'm doing the tutorial The Strength of Simulation: Estimating Leg Muscle Forces in Stance and Swin - Part II: Leg Muscle Force Estimation in Stance.

However when I try to run the RRA, I have this error message:
"CustomJoint 'ankle_r' has collinear axes and are not well-defined. Please fix and retry loading."
I checked the osim file as mentionned here (#1716) but I do not have commas instead of periods, so my file is OK.

Can somebody explain me what I'm missing and how to fix it please ?

Thanks in advance

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