This is my first time using the COSMOS Works package and Ihave imported a Solidworks 2008 model of a FR4 substrate with fourboard components(TSSOP, flip chip, and 2 BGA) with materials fullydefined. I have set parameters for a static study of stresses dueto thermal boundary conditions of -40 degrees C and 125 degrees C.When I pressed "run", I got an error message saying "Poisson'sratio should be less than 0.5". The problem with this error is thatI have gone through all the materials used in this assembly andtheir properties but the highest poisson's ratio is 0.4 for theSn63 solder bumps. Has anyone encountered an error like this orknows how to fix it? Thank you.SolidworksSimulation