我用LS-DYNA创建mat100(hexa)创建了hexa nugget就会报错误，如何解决？
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*** Error 20216 (STR+216)
part # 0 is out-of-range
1 0.000000000E+00 0.000000000E+00 0
input phase will continue if possible
*** Error 20018 (STR+18)
input phase completed with 1 fatal errors
please check messag file
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