在用ansys進行優化設計時，在優化循環階段彈出以下內容的窗口：An error has occurred in ANSYS during this optimization loop.  The design variable settings have produced a design that cannot be solved  by ANSYS.  Optimization will continue after setting the response variables (SVs and OBJ) to large numbers.  這是怎么回事，該怎么解決？急需。。。