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I might just be screwed here but I figured I would see if anybody has a solution before I give in.
I've got a file made in Civil 3d 2011, I opened it in 2012. I made a small change (elevation of one polyline), then saved. Now when I go back to 2011 I get the usual message about versions. However, I cannot create a surface. I didn't have any civil 3d objects prior to my accidental 2012 save and I just want to make new ones in 2011. Am I forced to switch everybody working on the project to 2012? Am I missing something about creating surfaces in 2011, I don't remember there being much difference from 2010 and 2012?
Chris Severs, PE Windows 7 Enterprise SP1 64 bit 64.0 GB RAM Intel Xeon E5-2650 v3 @ 2.30GHz NVIDA Quadro M4000 Civil 3D 2014
Yup - it's updated/upgraded the drawing to 2012 and not backwards compatible. you can go into 2012, XML export and import into 2011 if you have a saved file prior to the 2012 save.
If AutoCad is going to give me a message saying a drawing is from a newer version (i.e. not backwards compatible), I would also like a message saying a drawing is from an earlier version of AutoCad when I open it up.
Is there at least some way to see what version of Cad a drawing was created in (other than calling the person who made it)?
Chris Severs, PE Windows 7 Enterprise SP1 64 bit 64.0 GB RAM Intel Xeon E5-2650 v3 @ 2.30GHz NVIDA Quadro M4000 Civil 3D 2014
You should have received a warning when you opened the file as shown in this screen capture. Perhaps yoiu saw it but didn't realize what it meant and moved forward.
Neil Wilson (a.k.a. neilw) AEC Collection/C3D 2024, LDT 2004, Power Civil v8i SS1 WIN 10 64 PRO
Depending on which version of windows you are running, (Win 7 and some Vista versions), I believe Win 7, depending on the configuration does saved version of files.
you can usually get to the temp location by typine "%temp%" without the quotes in windows explorer address bar and hitting enter. look for file with the extension bak and sv$ (might show as Autocad Autosave Drawing)
Look for one around the time prior to you opening it in 2012 and rename the file to have the extension .dwg
You might have to look into how to show file extensions for known file types.
If a post provides a fix for your issue, click on "Accept as Solution" to help other users find solutions to problems they might have that are similar to yours.
Andrew Puller Maitland, NSW, Australia Windows 10 Enterprise 64bit Intel core i7 11800 @ 2.30 GHz with 32GB Ram Civil 3d 2021
If as you said there were no civil 3D objects in the drawing before you opened it in 2012 open the drawing again is Civil 3D 2012 and export it to Autocad 2010.
Start a new drawing with 2011 using your standard template.
Open the drawing you exported to Autocad turn on all layers and copy to the clip board using 0,0 as your base point.
Switch to the new 2011 drawing and past from the clipboard using 0,0 as your base point.
All you civil commands will work and you can create civil 3D 2011 objects.
