求助大神,virtual。ERROR : GRAPH FILE JBB-1113131-Structure_samcef.u60 DOES NOT EXIST !
**** ERROR has occurred during computation ****
You may try to compute the solution in manual mode and try to attach the results afterwards.
!!! Please check the *_samcef.log or *_samcef_dy.res file for errors !!!
这是怎么了