abaqus错误一直是这个，该怎么解决呀

asd745471312

1.DEGREE OF FREEDOM 11 AND AT LEAST ONE OF DEGREES OF FREEDOM 1 THRU 6
           MUST BE ACTIVE IN THE MODEL FOR *COUPLED TEMP-DISP. CHECK THE
           PROCEDURE AND ELEMENT TYPES USED IN THIS MODEL.

2.INVALID LOAD TYPE ON ELEMENT 1121 INSTANCE SHANGDIAN-1. LOAD TYPE CS
           IS NOT VALID FOR ELEMENT TYPE C3D20R


3.A DISTRIBUTED ELECTRICAL CURRENT HAS BEEN SPECIFIED, BUT THERE ARE
           NO ELECTRIC CONDUCTION ELEMENTS IN THE MODEL


我在模型上面加了个表面，用的分析步是热-电-结构。是在点焊的电极上表面加的电流。网上说改网格族，我基本上改完了还是这个情况