我在运行时总出现下面的错误，请教高手到底是怎么回事？？
C:\Gauss8.0\MSVAR\MSlib\MSVAR_Setdatation.prg(27) : error G0058 : Index out of range
Currently active call: MSVAR_Setdatation [27] C:\Gauss8.0\MSVAR\MSlib\MSVAR_Setdatation.prg
Stack trace:
   MSVAR_Setdatation called from C:\gauss8.0\MSVAR\MSlib\luwen.prg, line 165