最近用9.1.3导入数据时出现这样的错误：
ERROR: Database error. Examine fields and/or messages below.
The directory , does not exist.
ERROR: Database table must be entered first
ERROR: Database table must be entered first
ERROR: File WORK._IMEX_.DATA does not exist.
WARNING: The data set WORK.S may be incomplete.  When this step was stopped there were 0
         observations and 0 variables.
ERROR: Import unsuccessful.  See SAS Log for details.
我是从快捷键 导入的。
请各位大侠帮忙解决