求助：简单效应分析

在做简单效应分析时出现这种情况是什么原因？   
      The default error term in MANOVA has been changed from WITHIN CELLS to
WITHIN+RESIDUAL.  Note that these are the same for all full factorial designs.

>Error # 12190
>There are one or more completely empty categories for one or more factors
>specified on the MANOVA command.  To run the analysis in this release, please
>recode the values of affected factors to sequential integer values and rerun.
>This command not executed.
MISSING CATEGORIES   

程序没有错误，是数据库上什么地方出现错误了？有么有大神详细的给解释一下。

直接用粘贴选项就不会出错