我这样做瞬态分析怎么会出现这种错误啊

Glin

下面是求解部分的命令流:
/solu
ANTYPE,TRANS
TRNOPT,FULL
CGOMGA,0
KBC,0
TIME,1
NSUBST,0.1
DCGOMG,0,2,0
OUTPR,ALL,ALL
OUTRES,ALL,ALL
LSWRITE,1
TIME,2
DCGOMG,0,0,0
OUTPR,ALL,ALL
OUTRES,ALL,ALL
LSWRITE,2
TIME,3
DCGOMG,0,-2,0
OUTPR,ALL,ALL
OUTRES,ALL,ALL
LSSOLVE,1,3,1
FINISH

算完了，系统却出现了下面的错误：the newton-raphson solution key has been activated for a structural analysis after the first load step.structral ananlyses must be run from the gegining with newton-raphson(NROPT command) if it is needed.
高手指点一下啊。先谢谢啦！