repeat block insertion

Hi,

I got this code in a web trawl to insert a block to points taken from a txt file......

its coming back with an error as follows:

; === Top statistic:
; Function definition (with number of arguments): ((C:INSERTBLOCKS . 0))
; Check done.

What does this mean and how can I fix it.

thanks

Sean

(defun c:insertBlocks (/ txtFile xyData expertVar attreqVar)
(setq expertVar (getvar "expert"))
(setq attreqVar (getvar "attreq"))
(setvar "expert" 2)
(setvar "attreq" 0)
  (setq txtFile (open "c:\\cad\\textfile.txt" "r")) ; give the path & file name of x,y data
 (while (setq xyData (read-line txtFile))
   (command "-insert" "blockName" xyData "1" "1" "0") ; substitute blockName with your block
   )
  (close txtFile)
(setvar "expert" expertVar)
(setvar "attreq" attreqVar)
  (princ)
)