I just had the same error show up in Autocad 2012.
I was working on the file this morning no problems. This afternoon edit some text issue shows up. audit the file I can move the text rotate copy. As soon as I edit a string of text Autocad no longer lets me do anything with that string. I get an error object is already open if I try to change any properties in the properties dialog box.
We moved your reply to its own topic in this forum.
Access a broad range of knowledge to help get the most out of your products and services.
Start with some of our most frequented solutions or visit the Installation and Licensing Forum to get help installing your software.
Upgrading to a 2015 product? Make sure to check these out 1st!