Coordinate System 'LL' error

[IanMcClain]

This is a repost from the ACAD 2010 forum. I thought it was more appropriate there, but I never got any responses:

When I open a an old drawing of mine with Autocad 2010 or C3D 2010 I get the following warning.

I don't know how or why the 'LL' system would have been changed. As far as I can tell it is not affecting anything. I have tried saving the drawaing as different coordinate systems or none and the message persists. How does one fix this error and not just suppress the warning?

[IanMcClain]

This is a repost from the ACAD 2010 forum. I thought it was more appropriate there, but I never got any responses:

When I open a an old drawing of mine with Autocad 2010 or C3D 2010 I get the following warning.

I don't know how or why the 'LL' system would have been changed. As far as I can tell it is not affecting anything. I have tried saving the drawaing as different coordinate systems or none and the message persists. How does one fix this error and not just suppress the warning?

[Alfred.NESWADBA]

Hi,

I haven't got this message, so sorry that I can't present a solution for your issue.

But if you have the software installed, that was used for creating the old drawing, you could take a look to the coord-definition there and compare it with your current definition.

Anyway, have you tried to search Google with the message? What's about >>>this<<<.

HTH, - alfred -

[IanMcClain]

I just came back to the drawing that was giving me this error. It's still un-resolved, but not affecting anything.

The drawing was created in LDD, but I don't have it anymore.

[IanMcClain · Accepted solution]

After contacting autodesk this was resolved by changing the CS of the offending drawing (used NAD83 datum, Latitude-Longitude; Degrees) and saving, then changing back to no datum, no projection (what I started with). The same had to be done for XREFS that were generating the same error.