我将数据用lisrel分析后，出来这样的出错结果，是什么原因呢，怎么改？好像命令没有写错啊，下面是我写的命令，最后的黑体字是它出来的出错结果。多谢各位了！！！

The following lines were read from file C:\Program Files\lisrel870\3.spl:

 Title:1
 Observed Variables:x1 x2 x3 x4 x5 x6 x7 x8 x9 x10 x11 x12 x13 x14 x15 y1 y2 y3 y4 y5 y6 y7 y8 y9 y10 y11 y12 y13 y14 y15 y16 y17 y18 z1 z2 z3 z4 z5 z6 z7 z8 z9 z10
 Latent Variables:X Y Z
 Raw Data From File:d:\3.txt
 Relationships:
 x1 x2 x3 x4 x5 x6 x7 x8 x9 x10 x11 x12 x13 x14 x15 =X
 y1 y2 y3 y4 y5 y6 y7 y8 y9 y10 y11 y12 y13 y14 y15 y16 y17 y18 =Y
 z1 z2 z3 z4 z5 z6 z7 z8 z9 z10 =Z
 End of Promblem

   F_A_T_A_L  E_R_R_O_R: A line 'Observed Variables' or a DA line

                         must follow immediately after title lines

                           Time used:    0.047 Seconds