hypermesh在做ERP分析时报错ERROR # 6112 怎么解决呢？

报错的详细信息是The normal vector is undefined/ambiguous for grid 156046 referencedby ERPPNl/PANELG elen sou. This grid may belong to pairs of elementswithnermals facing opposite directiong,是节点问题吗，怎么解决呢？