In this case there are a few things you can try to overcome this issue with saving. Please try the following steps:
1) When the error occurs, use the following steps to save the drawing:
a. Enter qsave at the command prompt.
b. When prompted to replace the existing drawing select Yes.
c. Close and re-open the drawing.
d. Did it work correctly?
2) Confirm that the user having the problem has full permissions to the network location where they're trying to save. This is one of the most common reasons we see this issue is a lack of sufficient rights to the folder.
3) AutoCAD tells if a drawing is in use by the existence of a DWL and DWL2 file. These are hidden, system files so you will need to set your folder options accordingly in Windows Explorer to see them. In some cases these DWL files can become 'stuck' and this may not allow the file to be saved. In these cases deleting the DWL files should restore the ability to save the files. Please close AutoCAD and then browse to the folder where your files are located. Delete any DWL files that are in existence. Can you now open and save the DWG files?
4) AutoCAD itself does not have any settings to control this behavior as it is managed by the operating system. We have encountered the scenario you are describing, however in all cases it was an issue with the server or network that was causing the problem. Can you please confirm this by copying the file locally and trying the save operation again. Does it then save correctly?
5) If the files are on a file server, which type is it? The root cause is typically some amount of lag between the client and the server. Try disabling the option to create backup files with each save and try the save operation again. This setting is available in Tools menu > Options > Open and Save tab.
6) Clear out all files in the %TEMP% folder in Windows. This folder is typically found in C:\Documents and Settings\%username%\Local Settings.
7) Is there only one user experiencing this problem? If only one person logs into the problem machine, have a second person log into the machine and see if the problem is persistent with the new user.
8) Disable the antivirus software and try to save the file. If it works, you may need to add an exception for DWG files into your antivirus software.
9) If they are using Novell Server, please refer to the attached link for more information,
Please let us know if this helped or if further assistance is needed on this inquiry. Thank you and we look forward to your reply.
I wanted to check back in on this case and see if the suggestions helped in resolution to your post. Please let us know within the community if further assistance is needed moving forward. Thank you and we all look forward to your reply update.
Have there been any updates to this? We're having a similar issue with saving files. From the troubleshooting above:
1. Unable to manually run qsave, the same error is displayed.
2. Permissions are not an issue, user has all necessary rights - this happens across multiple folders at random.
3. .dwl & .dwl2 files clean up normally upon file close. Deleting manually does not help the situation.
4. Copying files locally encounters no issues with file saves.
5. Server is Win 2008r2, disabling backup creation does not fix, files are still unable to save when this occurs.
6. Haven't tried cleaning out %Temp%, will try that one.
7. This happens to multiple users throughout the office on multiple projects. Seems to happen when dwg A is being edited and one user and another user opens dwg B, which references dwg A.
8. Haven't disabled A/V software, but do have an exception for .dwg and .bak already built-in to policy.