As a test, select all text and go to Type > Create Outlines . If the error disappears, a specific font is the problem.
| Trigger | Frequency | Typical Action | |--------|-----------|----------------| | | High | Ctrl+V | | Saving to cloud/synced folders (Dropbox, OneDrive) | High | File > Save As | | Using specific PDF compatibility modes | Medium | Save As PDF | | GPU preview with complex strokes | Medium | Zooming or panning | | Third-party plugins (CADtools, Phantasm) | Low | Applying effect | | Corrupt SVG data in clipboard | Medium | Pasting from web |
If this error occurs specifically when copying and pasting elements between documents or applications, the issue is almost certainly related to the (often installed with CorelDRAW or specific cutting software like SignCut). As a test, select all text and go to Type > Create Outlines
The "Illustrator: The operation cannot complete because of an unknown error" issue can manifest in various ways, such as:
Hold down Alt + Control + Shift (Windows) or Option + Command + Shift (Mac). Launch Illustrator while holding these keys. The "Illustrator: The operation cannot complete because of
Application Stability / File Integrity Severity: High (Prevents user action or file saving) Primary Causes: Plugin conflicts, corrupt preferences, font caching issues, or GPU rendering incompatibility.
A single corrupted font file can crash the entire saving process. A single corrupted font file can crash the
Illustrator may throw an error if it doesn't have "permission" to write a file to a specific location.