使用 SAS 9.3 64位 中的Variable Selection node 运行老报错，不知道各位遇到这种情况没有，求解答！

查看节点结果如下：

NOTE: No variables rejected based on levels.

ERROR: Module SASOMDB  not found in search paths.
ERROR: Invalid argument.
ERROR: Invalid argument.
ERROR: File WORK.TMPMDDB.MDDB does not exist.
ERROR: The _SET_MDDB_TABLE_ method must be called before the _GET_HIERARCHIES_ method.
ERROR: Named item not found in list.
Hierarchy detection failed - MDDB Server limit reached
693  proc printto;
694  run;