ANSYS导入命令流时报错Key point 1 is associated with node 160 and cannot be changed是怎么回事？如何修改模型？

命令流如下：

/batch

/com,ansys release 14.0    up20111024       20:05:53    09/04/2017

/gra,power

/gst,on

/plo,info,3

/gro,curl,on

/cplane,1

wpstyle,,,,,,,,0

save,'rout4','db','c:\users\administrator.pc-20130802pbxq\'

*set,l,18

*set,h,5

*set,h1,3

*set,l1,13

*set,l2,3

*set,et,3.2e7

*set,rout,2110

*set,ej,3e6

*set,rouj,1900

/prep7

et,1,42

keyopt,1,1,0

keyopt,1,2,0

keyopt,1,3,2

keyopt,1,5,0

keyopt,1,6,0

mptemp,,,,,,,

mptemp,1,0

mpdata,ex,1,,et

mpdata,prxy,1,,0.3

mptemp,,,,,,,

mptemp,1,0

mpdata,dens,1,,rout

tb,dp,1,,

tbmodif,1,1,110e3

tbmodif,1,2,30

tbmodif,1,3

mptemp,,,,,,,

mptemp,1,0

mpdata,ex,2,,ej

mpdata,prxy,2,,0.35

mptemp,,,,,,,

mptemp,1,0

mpdata,dens,2,,1900

tb,dp,2,,

tbmodif,1,1,30e3

tbmodif,1,2,25

tbmodif,1,3

k,1,0,0,0

k,2,l,0,0

k,3,l,h,0

k,4,l,h+h1,0

k,5,l-l2,h+h1,0

k,6,l1,h,0

k,7,0,h,0

ksel,s,kp,,1

ksel,a,kp,,2

ksel,a,kp,,3

ksel,a,kp,,6

ksel,a,kp,,7

a,all

ksel,s,kp,,3

ksel,a,kp,,4

ksel,a,kp,,5

ksel,a,kp,,6

a,all

esize,0.3,0

type,1

mat,1

real

esys,0

secnum

mshape,0,2d

mshkey,0

asel,,,,2

amesh,all

type,1

mat,2

real

esys,0

secnum

asel,,,,1

amesh,all

finish

/sol

antype,0

nlgeom,1

nropt,full,

staopt,defa

lumpm,0

eqslv,,,0,,dele

msave,0

pcgopt,0,,auto,,,auto

pivcheck,1

pstress,0

toffst,0

finish

/prep7

lsel,s,line,,2

lsel,a,line,,5

/go

dl,all,,ux

lsel,s,line,,1

/go

dl,all,,all

finish

/sol

acel,0,-9.8,0

/status,solu

solve