这个问题已经困扰我一个星期了，冲压的过程就是上模向下运动到板料成型为止，同时在模具水道内壁设置固定温度来散热，然后就一直报错了。真心不知道这个set168是个什么错误，麻烦大家帮我看看，报错的文字如下“

The job "1202-43" has been created.

The job input file "1202-43.inp" has been submitted for analysis.

Error in job 1202-43: in keyword *ADAPTIVEMESH, file "1202-43.inp", line 5463: Unknown assembly set _PICKEDSET168

Error in job 1202-43: ELEMENT SET ASSEMBLY__PICKEDSET168 HAS NOT BEEN DEFINED

Error in job 1202-43: ADAPTIVE MESH HAS BEEN SPECIFIED ON ELSET ASSEMBLY__PICKEDSET168 BUT THIS ELSET HAS NOT BEEN DEFINED

Job 1202-43: Analysis Input File Processor aborted due to errors.

Error in job 1202-43: Analysis Input File Processor exited with an error.

Job 1202-43 aborted due to errors.