prevent core dump when version not specified.
prevent core dump when version not specified.

amarie-formation/roswell,snmsts/roswell,JulienBoubechtoulaAmabis/roswell,Rudolph-Miller/roswell,kubov/roswell,JulienBoubechtoulaAmabis/roswell,JulienBoubechtoulaAmabis/roswell,JulienBoubechtoulaAmabis/roswell,fukamachi/roswell,snmsts/roswell,guicho271828/roswell,roswell/roswell,amarie-formation/roswell,fukamachi/roswell,Rudolph-Miller/roswell,amarie-formation/roswell,snmsts/roswell,JulienBoubechtoulaAmabis/roswell,amarie-formation/roswell,guicho271828/roswell,Rudolph-Miller/roswell,Rudolph-Miller/roswell,fukamachi/roswell,guicho271828/roswell,kubov/roswell,roswell/roswell,pradhyu/roswell,kubov/roswell,pradhyu/roswell,fukamachi/roswell,guicho271828/roswell,roswell/roswell,roswell/roswell,snmsts/roswell,pradhyu/roswell,pradhyu/roswell,kubov/roswell