The Operation Cannot Complete Because Of An Unknown Error Illustrator Jun 2026

Close Illustrator. Relaunch it while immediately holding down Alt + Control + Shift (Windows) or Option + Command + Shift (Mac). A dialog will ask if you want to delete the settings file.

If the error appears randomly or across multiple operations, apply these in order. Close Illustrator

Here is a step-by-step troubleshooting guide, ordered from the easiest fixes to the more advanced solutions. Close Illustrator