abaqus出现报错？ 20

在分析时abaqus出现Error in job FJF-explicit: CONTACT PAIR REFERENCES SURFACE/NODE-BASED SURFACE/ANALYTICAL RIGID SURFACE ASSEMBLY_PART-2-1_LOWPLATE-UPPLATE-GEO BUT THIS SURFACE/NODE-BASED SURFACE/ANALYTICAL RIGID SURFACE HAS NOT BEEN DEFINED OR THIS SURFACE IS DEFINED ON THE COLLAPSED FACES这个是什么原因啊，请问一般怎么解决？