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iCloud Drive/Finder Couldn't communicate with a helper application

So, today is fun day with my finder!


I updated my macOS to 10.13.1, and after the restart I get an error message and a pretty much unusable Finder. Whenever I restarted or re-enabled my iCloud Drive, my whole finder crashes when I try to select/drag or open a file, then in the Finder the iCloud icon has a lighting bolt and I get this error message:


iCloud Drive may not work properly. Please check the iCloud preference pane.

Couldn't communicate with a helper application


• So, I went on my preference pane, all logged in, all good and no errors;

• Then I tho, okey, probably a sync issue, however, I can't seem to find a way how to push a sync with the iCloud;

• Then I tried to disable it, and then re-enable it and I get the same error;


Running out of ideas, what could be wrong :/

MacBook Pro with Retina display, OS X El Capitan (10.11.3)

Posted on Nov 14, 2017 1:34 AM

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Posted on Nov 14, 2017 7:36 AM

Well, after having a 2h with two Apple Support people, who helped me a little bit to troubleshoot what could be wrong and pointing me to the wrong direction about having too many files on my Hard drive that don't even sync with my computer, and then explaining them that is not how cloud drives work, I figured out just to delete the Cache folder from my Library and re-sign into my account and boom! All works fine 🙂

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Question marked as Best reply

Nov 14, 2017 7:36 AM in response to Gromuls

Well, after having a 2h with two Apple Support people, who helped me a little bit to troubleshoot what could be wrong and pointing me to the wrong direction about having too many files on my Hard drive that don't even sync with my computer, and then explaining them that is not how cloud drives work, I figured out just to delete the Cache folder from my Library and re-sign into my account and boom! All works fine 🙂

Jan 18, 2018 7:57 AM in response to AplSu..s@Software

I have had the same problem for 2 1/2 years trying to get my pictures off of iCloud. So yesterday, I added them to keynote & transferred some of them to my computer that way until that stopped working!

Then I decided to airdrop it & it worked for a while until it stopped working!! There must be a way to use these features that Apple offers but never works....I have purchased an additional 1 new desktop, 1 new laptop, 2 external hard drive & 2 large thumb drives, so I know it’s an Apple issue bc I have spent over 2500 hours on the telephone or at Apple stores trying to get my pics off of iCloud along with them exchanging 19 phones out! Please help bc I need my pics & need my life back!

iCloud Drive/Finder Couldn't communicate with a helper application

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