既不给数据，也不给语句，怎么帮你

谢谢~已经解决了

Mplus VERSION 8.1
MUTHEN & MUTHEN
01/18/2019   4:24 AM

INPUT INSTRUCTIONS

  DATA: FILE IS C:\Users\Administrator\Desktop\发发发发发\ICT\Chinese
  whole data file删减后190117.dat;
  VARIABLE:NAMES ARE Q6_1 Q6_2 Q6_3 Q6_4 Q11_1 Q11_3 Q18_1 Q18_2 Q18_3 Q18_4 Q26_1_1
  Q26_1_2 Q26_1_3 Q26_1_4 Q26_1_5 Q26_2_1 Q26_2_2 Q26_2_3 Q26_2_4 Q26_2_5 Q26_3_1 Q26_3_2
   Q26_3_3 Q26_3_4 Q26_3_5 Q26_4_1 Q26_4_2 Q26_4_3 Q26_4_4 Q26_4_5 Q26_5_1 Q26_5_2 Q26_5_3
   Q26_5_4 Q26_5_5 Q26_6_1 Q26_6_2 Q26_6_3 Q26_6_4 Q26_6_5 Q26_1_6 Q26_1_7 Q26_1_8 Q26_1_9
   Q26_1_10 Q26_2_6 Q26_2_7 Q26_2_8 Q26_2_9 Q26_2_10 Q26_3_6 Q26_3_7 Q26_3_8 Q26_3_9
   Q26_3_10 Q26_4_6 Q26_4_7 Q26_4_8 Q26_4_9 Q26_4_10 Q26_5_6 Q26_5_7 Q26_5_8 Q26_5_9
   Q26_5_10 Q26_6_ Q26_6_7 Q26_6_8 Q26_6_9 Q26_6_10;
  USEVARIABLES= Q6_1 Q6_2 Q6_3 Q6_4 Q11_1 Q11_3 Q18_1 Q18_2 Q18_3 Q18_4 Q26_1_1
  Q26_1_2 Q26_1_3 Q26_1_4 Q26_1_5 Q26_2_1 Q26_2_2 Q26_2_3 Q26_2_4 Q26_2_5 Q26_3_1 Q26_3_2
  Q26_3_3 Q26_3_4 Q26_3_5 Q26_4_1 Q26_4_2 Q26_4_3 Q26_4_4 Q26_4_5 Q26_5_1 Q26_5_2 Q26_5_3
  Q26_5_4 Q26_5_5 Q26_6_1 Q26_6_2 Q26_6_3 Q26_6_4 Q26_6_5 Q26_1_6 Q26_1_7 Q26_1_8 Q26_1_9
  Q26_1_10 Q26_2_6 Q26_2_7 Q26_2_8 Q26_2_9 Q26_2_10 Q26_3_6 Q26_3_7 Q26_3_8 Q26_3_9
  Q26_3_10 Q26_4_6 Q26_4_7 Q26_4_8 Q26_4_9 Q26_4_10 Q26_5_6 Q26_5_7 Q26_5_8 Q26_5_9
  Q26_5_10 Q26_6_ Q26_6_7 Q26_6_8 Q26_6_9 Q26_6_10;
  MODEL: X BY Q26_1_1 Q26_1_2 Q26_1_3 Q26_1_4 Q26_1_5 Q26_2_1 Q26_2_2 Q26_2_3 Q26_2_4
  Q26_2_5 Q26_3_1 Q26_3_2 Q26_3_3 Q26_3_4 Q26_3_5 Q26_4_1 Q26_4_2 Q26_4_3 Q26_4_4 Q26_4_5
  Q26_5_1 Q26_5_2 Q26_5_3 Q26_5_4 Q26_5_5 Q26_6_1 Q26_6_2 Q26_6_3 Q26_6_4 Q26_6_5 Q26_1_6
  Q26_1_7 Q26_1_8 Q26_1_9 Q26_1_10 Q26_2_6 Q26_2_7 Q26_2_8 Q26_2_9 Q26_2_10 Q26_3_6 Q26_3_7
  Q26_3_8 Q26_3_9 Q26_3_10 Q26_4_6 Q26_4_7 Q26_4_8 Q26_4_9 Q26_4_10 Q26_5_6 Q26_5_7 Q26_5_8
  Q26_5_9 Q26_5_10 Q26_6_ Q26_6_7 Q26_6_8 Q26_6_9 Q26_6_10
  Y BY Q18_1 Q18_2 Q18_3 Q18_4
  W BY Q6_1 Q6_2 Q6_3 Q6_4 Q11_1 Q11_3
  DEFINE: XW = X*W;
  ANALYSIS: TYPE = GENERAL;
  ESTIMATOR = ML;
  BOOTSTRAP = 2000;
  MODEL: [Y] (b0);
  Y ON X (b1);
  Y ON W (b2);
  Y ON XW (b3);
  MODEL CONSTRAINT: NEW(LOW_W MED_W HIGH_W SIMP_LO SIMP_MED SIMP_HI);
  LOW_W = #LOWW;
  MED_W = #MEDW;
  HIGH_W = #HIGHW;
  SIMP_LO = b1 + b3*LOW_W;
  SIMP_MED = b1 + b3*MED_W;
  SIMP_HI = b1 + b3*HIGH_W;
  PLOT(LOMOD MEDMOD HIMOD);
  LOOP(XVAL,1,5,0.1);
  LOMOD = (b0 + b2*LOW_W) + (b1 + b3*LOW_W)*XVAL;
  MEDMOD = (b0 + b2*MED_W) + (b1 + b3*MED_W)*XVAL;
  HIMOD = (b0 + b2*HIGH_W) + (b1 + b3*HIGH_W)*XVAL;
  PLOT: TYPE = plot2;
  OUTPUT: STAND CINT(bcbootstrap);

*** ERROR
  Undefined variable used in transformation:
  X

哪位大神麻烦看一下，这里为什么显示X未被定义啊，感谢！！

怎么解决的？我是明明定义了但还是提示没定义某变量，都无语了

我现在也遇到了这样的情况，请问是如何解决的？