Unable to save ... being accessed by another session

[hencoop]

Hello all,

There are apparently several reasons for AutoCAD to return this error.  In each case, something has flagged the drawing as "open".  Today, I discovered one reason that may be as elusive to others just as it was to me.

 The reason the drawing was flagged as open is that the object assigned to *active-document* by 

(SETQ *active-document* (vla-get-activedocument (vlax-get-acad-object))) 

(and which could be assigned to another symbol by similar code you may use) had not been released, i.e., 

(vlax-release-object *active-document*)

had not been done executed when the function making use of *active-document* had completed.

This file save error seemed random and was infrequent.

Before this, it had seemed to me that meticulously releasing and reacquiring the document object was excessive.  Now, I don't think it is!

[john.uhden]

@hencoop ,

Nice work.  Please accept your own solution.

I wonder if localizing *active-document* would circumvent that situation.