Hi Guillaume I'm suspecting it's an issue with the SimTKLapack library that we include in the distribution and use to solve various math problems. Could you try an install of SimTKCore 2.0.1 separately and put the .dylib libraries from SimTKCore into the front of the DYLD_LIBRARY_PATH? -Ayman ----- Original Message ----- From: "guillaume rao" <guillaume.rao@univmed.fr> To: <opensim-testers@simtk.org> Sent: Saturday, April 17, 2010 11:31 PM Subject: [Opensim-testers] ik on mac osx Hello all, I tried several times to run IK on mac osx 10.6.3 with ipopt and I always get a "bus" error. When I try with cfsqp, I get an error saying that the library is not found : Can't perform operation: Could not load CFSQP library 'libosimCFSQP.so': dlopen(libosimCFSQP.so, 9): image not found CFSQP optimizer algorithm unavailable. Using the jacobian option, the ik eventually ran :-) Is someone having the same bug? Thanks Guillaume _______________________________________________ Opensim-testers mailing list Opensim-testers@simtk.org https://simtk.org/mailman/listinfo/opensim-testers