David O'Donnell Posted January 22, 2010 Share Posted January 22, 2010 Why am I seeing an increasing occurrance of this error "ARX_ERROR: eNotThatKindOfClass" ? They seem to come in multiple numbers when they happen. Quote Link to comment Share on other sites More sharing options...
ReMark Posted January 22, 2010 Share Posted January 22, 2010 The answer to your question may be found within this thread. http://www.cadtutor.net/forum/showthread.php?t=16383 Quote Link to comment Share on other sites More sharing options...
Frank Olivas Posted July 8, 2010 Share Posted July 8, 2010 I downloaded the DWG TrueView from Autodesk. It is free. I am using Autocad 2004. I take drawings from architects using Autocad 2006 and higher and convert them to 2004. This took care of the same situation you have or had. Quote Link to comment Share on other sites More sharing options...
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