Hi dear Linjie Wang
I faced a problem like yours. How can I solve it??

I have a problem to run inverse kinematic. I faced to an error (number of workunits can not be negative). how can I solve this problem????

how can I solve this error "number of workunits can not be negative"???

thank you very much for your response. how can I use that on OpenSim? May you explain its process? I think I have to use Notepad++

Hello all, I need to an OpenSim model with 3 DOF at knee joint. how can I add extra DOF to knee joint? could you help me with that? may you send me this model if you have??
Best Regards
siavash