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

Community Beginner ,
Aug 20, 2019

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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.

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

Community Beginner ,
Aug 20, 2019

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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.

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Aug 20, 2019 1
Adobe Community Professional ,
Aug 20, 2019

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Which version?

Which system?

Third party plugins?

Did you update anything recently?

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Aug 20, 2019 0
Community Beginner ,
Aug 20, 2019

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Hello, it happen with the latest version 20.3. Out of the blue the error pop up. I already uninstalled the app with the CC cleaner tool, reinstalled it and still having the same error pop.

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Aug 20, 2019 0
Adobe Community Professional ,
Aug 20, 2019

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Please look up the exact version in "About Illustrator" and tell us your system.

Also: did you update anything (system, Illustrator, anything else)

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Aug 20, 2019 0
Community Beginner ,
Aug 20, 2019

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Sorry the exact version I was using when this happen was Illustrator CC (22.1). I'm using a Macbook Pro 2017.

And I did not made any updates at all.

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Aug 20, 2019 0
Adobe Community Professional ,
Aug 20, 2019

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So you also deleted the preferences?

Is a printer connected?

You're not using the latest version.

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Aug 20, 2019 0
Community Beginner ,
Aug 20, 2019

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Yes I did.

No printer connected. I downloaded the latest version now.

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Aug 20, 2019 0
Adobe Community Professional ,
Aug 20, 2019

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This is a pretty common issue - make sure the account you are running has Admin privileges and the system folders have permissions set properly.

Kevin Stohlmeyer Adobe Community Professional/Adobe Certified Instructor

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Aug 20, 2019 1
Community Beginner ,
Aug 20, 2019

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All fixed. Thank you, I totally forgot to delete the old preference folders.

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Aug 20, 2019 0
Community Beginner ,
Oct 04, 2020

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How do you get admin priveleges

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Oct 04, 2020 0
Community Beginner ,
Oct 04, 2020

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How do you delete preference folders

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Oct 04, 2020 0
Adobe Community Professional ,
Oct 05, 2020

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Please learn about how your system works.

The documentation of either Apple or Microsoft tell you that.

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Oct 05, 2020 0
Adobe Community Professional ,
Aug 20, 2019

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Can you try it under another user to see if the problem persists. This will also make us aware if it is a user preference issue or a system issue.

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Aug 20, 2019 0
Community Beginner ,
Aug 20, 2019

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Katie, I have try with another user and still nothing.

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Aug 20, 2019 0
New Here ,
Dec 15, 2019

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Same error message while taking a traced object to which I had successfully applied a Gaussian blur, and when I click on the Gaussian blur in object appearance and try to modify how many pixels of blur to apply, I get the same message (along with the follow-up message "An error occurred while processing the appearance of an object") and the previously applied Gaussian blur no longer appears. Even if I completely delete Gaussian blur from the appearance, and try to re-apply it, I get both of these error messages.

I'm using the latest Illustrator build 24.0.1 on the latest Mac OS Catalina 10.15.2. No third party plug-ins. And yes, the OS updated within the last 24 hours. 

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Dec 15, 2019 0
New Here ,
Jan 21, 2020

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Any update on this? Did you solve this? I got the same exact error when applying a 3d effect out of the blue.

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Jan 21, 2020 0
Adobe Community Professional ,
Jan 22, 2020

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"Any update on this? Did you solve this? I got the same exact error when applying a 3d effect out of the blue."

 

Which version? Which system?

Does it work after a computer restart?

Does it work with simple objects? A rectangle?

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Jan 22, 2020 0
Community Beginner ,
Aug 30, 2020

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The operation cannot complete because of an unknown error cant.

getting the same error and I tried to uninstall and reset preferences and reinstall. but still getting error. Please help me.

I am using windows 10 pro version: 2004 Illustrator version 24.3.0

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Aug 30, 2020 1
Adobe Community Professional ,
Aug 30, 2020

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What exactly are you doing when this happens?

Please tell us more about the file - is it an old file? What is in it?

And please create a new thread for your issue, since the directions in this one don't help you.

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Aug 30, 2020 0
Community Beginner ,
Aug 30, 2020

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I press an OK button when showing error "the operation cannot complete because of an unknown error [cant]"

And illustrator opens but not working properly like a new file or anything.

when I illustrator exit the illustrator crash. what should I do please help me fast.

Recently I updated illustrator last version 24.1.1 and recently update 24.3.0

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Aug 30, 2020 0
Adobe Community Professional ,
Aug 30, 2020

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What exactly are you doing that causes this to pop up?

Did it just start to happen?

Is it just one file?

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Aug 30, 2020 0
Community Beginner ,
Aug 30, 2020

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Every time when I open an illustrator pop up a showing.

when pressing ok button illustrator open and didn't work and when I quit then illustrator crashed.

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Aug 30, 2020 0
Adobe Community Professional ,
Aug 31, 2020

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I'm sorry I can't make a lot of sense out of your answers. This might be a language problem. If English is not your mother tongue, please try and answer in your native language. There is a translation available and maybe even someone here can speak your native language.

 

If you are not comfortable digging around in your system, you can also just contact Customer Care: https://helpx.adobe.com/contact.html

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Aug 31, 2020 0
Community Beginner ,
Aug 31, 2020

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Ok me hindi me batata hu.

me jab bhi illustrator open karta hu tab ye error ka popup show hota he. Or me popup ko ok butten press krta hu tab illustrator open hota he but illustrator work nhi karta h jaise ki new artwork tool kuch bhi properly work nahi krta he. Fir jab illustrator close karta hu to illustrator crash ho jata h. So what should i do for this problem. Jald se jald solve karo kyuki bahot kam pending h mera me graphic designer hu or illustrator nhi chal rha he. 😭

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Aug 31, 2020 1
New Here ,
Oct 02, 2020

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same issue. also, tried older versions, I reinstalled it many times. Please help.

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Oct 02, 2020 0
Adobe Community Professional ,
Oct 03, 2020

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

 

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

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Oct 03, 2020 0
Explorer ,
Oct 14, 2020

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"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-...

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Oct 14, 2020 2
New Here ,
Sep 29, 2020

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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

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Sep 29, 2020 1
Explorer ,
Oct 14, 2020

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"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-...

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Oct 14, 2020 2