在cad中出现“代理对象不允许复制 因此写块操作被拒绝”的解决办法

(vl-load-com)
;按层存文件 明经 ZZXXQQ 2011.1.6 ，nuist 2015.12.18
(defun c:tt ()
  (setvar "CMDECHO" 0)
  (setq lnm nil)
  (setq filepath (strcat (vla-get-Path (vla-get-ActiveDocument (vlax-get-acad-object))) "\\") )
  (setq filepath (strcat (strcat filepath (getvar "dwgname")) "1\\") )
  (command "sh" (strcat "rd/s/q " filepath))
  (command "sh" (strcat "md " filepath))
  (while (setq lnm (tblnext "LAYER" (not lnm)))
    (if (setq ss (ssget "X" (list (cons 8 (cdr(assoc 2 lnm))))))   
      (command ".WBLOCK" (strcat (strcat filepath (cdr(assoc 2 lnm))) ".dxf") "" "" "0,0" ss "")
    )
  )
  (setvar "CMDECHO" 1)
  (princ)
)