trouble opening DXF - no error provided

[damianshelton77]

Hi, i'm having trouble opening a DXF file in autocad online viewer and autocad 2023 (trial version)

The file was created by an app that i'm developing using a plug in that was developed by a third party. 

I can open the file and see the image through gmail and using another online viewer called sharecad.org. 

The end user requires that it open correctly in autocad. 

Unfortunately it doesn't provide me with an error code or some reference to the problem.

This forum removed the file, so i've simply renamed it from .dxf to .txt

Any help would be appreciated. Kind regards,

Damian

[pendean]

---

@damianshelton77 wrote:

Unfortunately it doesn't provide me with an error code or some reference to the problem.

---

AutoCAd 2021 reports the problem is...

"The following error was encountered while reading
in LWPOLYLINE starting at line 2650:
Class separator for class AcDbEntity expected
Invalid or incomplete DXF input -- drawing discarded."

I bet yours did too: CTRL+F2 then scroll up.

HTH

[artc2 · Accepted solution]

The error I get is:

Bad handle 273: already in use
The following error was encountered while reading
in LWPOLYLINE starting at line 2650:
Class separator for class AcDbEntity expected
Invalid or incomplete DXF input -- drawing discarded.

Looking at the dxf file, it appears that all of the polylines have the same handle. When I fix that (and adjust the handseed value to allow for the handle values now used), the file reads into AutoCAD without error. So, the missing class separator error is just the result of the dxfin parser getting messed up by the duplicate handles.

[damianshelton77]

SOLVED.

thank you so much, that was the problem. I changed my code to use a
different handle and now it works.