LS-dyna 隐形-显示顺序求解

我的分析需要先隐式求解，然后显示求解，可是我在隐式求解运算时出现错误，提示
The element option SOLID185 was either not ordered with this ANSYA installation or the appropriate product was not selected for this session.
Contact your ANSYS support person for more information
求高手帮忙解释哪里错了，谢谢。