ARX_ERROR: eNot That Kind of Class? Land Development

[shalvor]

I use Autodesk Land Development software and received what I assume to be an AutoCad drawing (.dwg extension). As I incorporated it into a project that I created I received the following message "ARX_ERROR:eNotThatKindofClass" and am unable to use any of my Land Development commands on the drawing (i.e. create points, drawing setup,etc.). I receive that same message. Would anybody know what this error means and is there any way to make this drawing compatible with my Land Development software? Any information would be most helpful. Thank you.

P.S. I am not a AutoCad/Land Development expert by any means but have used the programs for a few years. I am also brand new to this site (or anything like it).

 

[Mabjro]

Have you tried to run audit on the drawing before bringing it into your land development software? You also may want to try creating a dxf file of the drawing and importing it into a new drawing file and blast the old drawing file.[Bomb]

 

[hfriberg]

i am 99% sure its because the version of cad you have on your cpu is older than the dwg was saved as.... ex. you have ldd r2 and the drawing was saved as ldd r3. you'll need to save the drawing down to r14 then open it, should do the trick.