Irricad

I am getting the following error:

OpenDWG was unable to open
<filename.dxf>
OpenDWG Error #287
Viewport entity with no extended data -- invalid

I saw the previous post on this topic and deleted the layout tab.
It is a version 2010 dxf file.

The error only relates to a layout which is called a viewport in Visual CADD. Ensure that all layouts are removed or try removing the layout again. I have seen some cases where the layout is still there after the first deletion. If this does not help please feel free to email the dxf file to your local support (support@nelsonirrigation.com) or to us (support@IRRICAD.com).