运行一个简单的do时，碰到codebook时，居然出现问题，到底怎么回事。help version也没搞懂，我是标准的10.0版的啊

count
   40

. gen bcg=r(N)

. version 10.0

. codebook bcg
  ------------------------------------------------------------------------- begin codebook ---
  - version 8.1, born(09sep2003) missing
 - nobreak {
  - macro drop T_cb_*
  - capture noisily break {
  - Codebook_u `0'
  = Codebook_u bcg
    ------------------------------------------------------------ begin codebook.Codebook_u ---
    - syntax [varlist] [if] [in] [, All Tabulate(integer 9) Mv Notes Header Problems Detail LA
> NGuages LANGuages2(str) Compact dots ]
    - if "`compact'" != "" {
    = if "" != "" {
      if `tabulate' == 9 {
      local tabulate ""
      }
      local optmacs "all tabulate mv notes header problems"
      local optmacs "`optmacs' detail languages languages2"
      local optlist "all tabulate() mv notes header problems"
      local optlist "`optlist' detail languages languages()"
      tokenize `optmacs'
      foreach opt of local optlist {
      if "``1''" != "" {
      di as err "compact and `opt' are mutually exclusive"
      exit 198
      }
      macro shift
      }
      SummCompact `varlist' `if' `in', `dots'
      exit
      }
    - else {
    - if "`dots'" != "" {
    = if "" != "" {
      di as err "dots allowed only with compact"
      exit 198
      }
    - }
    - if "`problems'" != "" & "`detail'" == "" {
    = if "" != "" & "" == "" {
      local quiet quiet
      local notes
      }
    - if "`all'" != "" {
    = if "" != "" {
      local header header
      local notes notes