做第一阶段被调节的跨层的被调节中介，一直报错，有没有大佬知道咋回事，第二层的组内变量值都换成一样的了
*** ERROR
  One or more between-level variables have variation within a cluster for
  the following clusters.  Check your data and format statement.

     Between    Cluster IDs with variation in this variable
     Variable

      WN          2 1 5 3 4