分析前总是出错 求助？

总是出现如下错误
Error in job fenxi: KEYWORD IS NOT AVAILABLE IN Abaqus/Explicit
Error in job fenxi: ANALYSIS WILL BE TERMINATED
Job fenxi: Analysis Input File Processor aborted due to errors.
Error in job fenxi: Analysis Input File Processor exited with an error.
Job fenxi aborted due to errors.
the keyword也没说是什么？搞不明白 求大神么帮帮忙！谢了！