The operation cannot complete because of an unknown error [CANT]

[marcor84099788]

I recently started getting this message as soon I open Illustrator "The operation cannot complete because of an unknown error [CANT]" and once it opens all my tool windows are hidden and I have to open them one at a time. Can anyone help.

[Monika Gause]

Did you try everything that has been suggested in the whole thread?

There are some questions posted all around the thread. Please answer them.

[Imransagor338]

"Solution for Adobe Illustrator. Regarding the problem...

"The operation cannot complete because of an unknown error. (CANT)"

The problem is caused by some files in the directories.

"c: \ Program Files \ Common Files \ Adobe \ UXP \"

In Windows 10 (X64)

Rename to "c: \ Program Files \ Common Files \ Adobe \ 00UXP \"

(In this way they are not erased and you can return to them, for if other programs fail)

It contains the routines for the start screen and new documents of the different Abobe programs.

https://helpx.adobe.com/photoshop/kb/troubleshoot-home-screen-issues.html

luck!!! 😉 :)"
Changing UXP to 00UXP worked like a charm!! This actually works for me!!!

For more info, Please, follow this link: https://illustrator.uservoice.com/forums/601447-illustrator-bugs/suggestions/36301807-the-operation-...

[Kyose95]

I also had the same problem. when the pop up appears and i press ok, it's not going well. I have deleted my preferences folder but it still pop up when I want to run adobe illustrator. I have tried to reinstall it many times but it still appears. I am using version 24.2.3 in windows 10

[Imransagor338]

"Solution for Adobe Illustrator. Regarding to this problem...

"The operation cannot complete because of an unknown error. (CANT)"

The problem is caused by some files in the directories.

"c:\Program Files\Common Files\Adobe\UXP\"

In Windows 10 (X64)

Rename to "c: \ Program Files \ Common Files \ Adobe \ 00UXP \"

(In this way they are not totally erased and you can return to them in the future, for if other programs fail)

It contains the routines for the start screen and new documents of the different Abobe programs.

https://helpx.adobe.com/photoshop/kb/troubleshoot-home-screen-issues.html

luck!!! 😉 :)"
Changing UXP to 00UXP worked like a charm!! This actually works for me!!!

For more information, Follow this link: https://illustrator.uservoice.com/forums/601447-illustrator-bugs/suggestions/36301807-the-operation-...

[Imransagor338]

"Solution for Adobe Illustrator. Regarding the problem...

"The operation cannot complete because of an unknown error. (Cant)"

The problem is caused by some files in the directories.

"c: \ Program Files \ Common Files \ Adobe \ UXP \"

In Windows 10 (X64)

Rename to "c: \ Program Files \ Common Files \ Adobe \ 00UXP \"

(In this way they are not erased and you can return to them, for if other programs fail)

It contains the routines for the start screen and new documents of the different Abobe programs.

https://helpx.adobe.com/photoshop/kb/troubleshoot-home-screen-issues.html

luck!!! 😉 :)"
Changing UXP to 00UXP worked like a charm!! This actually works for me!!!

:white_heavy_check_mark:For more information, Follow this link: https://illustrator.uservoice.com/forums/601447-illustrator-bugs/suggestions/36301807-the-operation-...