[Wien] Do I should accept the struct generated by sgroup?

[yxl at email.jlu.edu.cn]

Dear user,
  Thank you for your reply first!
Do you mean if i have the corret structure corresponding
to one of the 230 space groups,then i should ignore the sgroup warning?But sometimes when i make a structure with only one symmetry operation,dstart will warn:dstart error :'ROTDEF'-no symmetry operation found.
Do you have met this situation? how to treat it?
yours sincerecely,
hongxia