aa2<-spss.get("kemu.sav",use.value.labels=TRUE)
Error in read.spss(file, use.value.labels = use.value.labels, to.data.frame = to.data.frame,  :
  error reading system-file header
此外: Warning message:
In read.spss(file, use.value.labels = use.value.labels, to.data.frame = to.data.frame,  :
  kemu.sav: position 0: Variable name begins with invalid character


请教，哪里出问题了？