110 votes244 comments · Illustrator (Desktop) Bugs » File Save, Import and Export · Flag idea as inappropriate… · Admin →
We have the fix available in the latest release. Please update Illustrator using Adobe Creative Cloud application to the latest build for version Illustrator CC 22.1.
Please refer to our knowledge base FAQ – https://illustrator.uservoice.com/knowledgebase/articles/1844590 if you face difficulty in update.
Or get in touch with us at any of the other support channels – https://helpx.adobe.com/support.html
Ashutosh Chaturvedi | Sr. Quality Engineering Manager – Illustrator
Adobe. Make It an Experience.
An error occurred while saving the commentIan commented
I get the same thing, when saving an .ai file to Dropbox. doesn't always happen, but all the files are created new in CC2108 and only used by myself and also only on one desktop--so it has not been accessed by me or anyone else from another computer. I am running Apple OS 10.13.1 and Adobe CC2018
Only started after the CC2018 and 10.13 update, so something between those I would think