Adobe Illustrator | Operation Cannot Complete Because Of An Unknown Error Parm [upd]

: According to Adobe's official scripting documentation, the alert "An Illustrator error occurred: 1346458189 ("PARM")" is directly linked to issues with running Adobe ExtendScript Toolkit (ESTK) scripts . This error occurs when badly written scripts are repeatedly run, creating variable initialization issues and namespace conflicts within the ExtendScript engine.

If the error occurs when opening a file or applying text effects, a damaged font is likely the culprit. : According to Adobe's official scripting documentation, the

Delete half of the artwork in the document, then try to save/export. Delete half of the artwork in the document,

An ounce of prevention is worth a pound of recovery. Here’s how to minimize your risk of ever seeing the PARM error again. : Corrupt settings often trigger this error

: Corrupt settings often trigger this error. Press and hold Alt+Control+Shift (Windows) or Option+Command+Shift (Mac) immediately while launching Illustrator to restore factory defaults.

Use a dedicated font manager instead of installing thousands of unverified fonts directly into your system directories.