Expert: Paul Jordan - 12/1/2009

Question
I am a controls CAD designer using AutoCAD Electrical 2010.
I am currently doing a simple panel layout and keep getting the following message after every save.

*Warning* Multiply owned object, handle "C89"

I have "listed" every item on the dwg including the titleblock but cannot even see where that handle is even used.
I have purged everything out of the dwg, deleted and redrawn duplicate blocks, purging in between.
I have done everything I can think of short of deleting the dwg and starting from scratch.
Any advice will be greatly appreciated.
Is this a message that can be ignored or do I need to worry about it?
If I can ignore it, OK, if I need to worry about it, how do I fix or get rid of it?
If I have to redraw everything I guess I have to but I would like to know what is going on in case this happens again.
I have been working with AutoCAD since 1991 and this is the first I recall seeing anything like this.

Answer
Hey RJ,

From most of what I've read on this subject, it's usually a "start over" answer but, I did find one that looks pretty interesting and I think it's worth a try.  

This is one of the rare times that I break out LISP.... Type the following
at the command line to erase the offending entity:

(command "erase" (handent "C89") "")

Where "72E" is the handle that you got in the error message. This is the
"nuclear option" for dealing the entity, use it with care.

or

(command "select" (handent "C89") "")

and then use "select" "P" to select and highlight the offending entity.


That comes straight from one of the Autodesk Technical wizards and I think it's definitely worth a shot.  Just type in the exact thing from ( to ) including the ('s and )'s.

Hope that helps,

Paul