我的程序是：
title:CFA - Analysis of Covariance Structure (COVS).
data:
    FILE = dataworkequ.dat;
    LISTWISE=ON;
VARIABLE:
    NAMES = a1-a16 c1-c13 ssq sl sdu se sdy usm ddy;
    MISSING = ALL .
    USEVARIABLES = a1-a16;
ANALYSIS: ESTIMATOR = ML; TYPE=GENERAL;
    MODEL=NOMEANSTRUCTURE; INFORMATION=EXPECTED;
MODEL:
    with by a4 a6 a1 a10 a8 a12; !Withdrawal;
    sali by a15 a13 a5 a9; !Salience;
    soci by a16 a2 a7; !social;
    mood by a14 a3 a11; ! mood;
    a15 with a5;
    a9 with a5;
    a9 with a8;
    a10 with a9;
OUTPUT: SAMPSTAT TECH1 TECH4 STDYX MOD;

结果中显示：*** ERROR in VARIABLE command
  The ALL keyword should be used only when numeric missing symbols are present in
  the data for all variables.

我将程序中“   MISSING = ALL .”删掉，同样会报错，结果中显示:*** ERROR
  The number of observations is 0.  Check your data and format statement.
  Data file:  dataworkequ.dat
*** ERROR
  Invalid symbol in data file:
  "$FL2@(#)" at record #: 1, field #: 1

我的报错是：
Variables already listed as USEVARIABLES  (some or all)    和
*** ERROR in VARIABLE command
  Duplicate variable on NAMES

权宜之计就是，首先以管理员身份打开mplus，然后再从mplus上的“打开”按钮上打开程序文件。

请问您的问题解决了吗？

我可以帮你解决，如有需要，可以加3100556104