"Couldn’t communicate with a helper application" - Can't access large file offline.

aschusterp

Hi there,

I've got a large file (115GB) on my online folders I'm trying to make available for offline access, but every time I try to get it, a pop-up comes up saying: 

Couldn’t communicate with a helper application.

My device is a MacBook Pro 13" M2 2022
MacOS Sequoia v15.6.1

Latest version of Dropbox app (downloaded 8/24/2025)

Thanks,

Andres

Device
N/A
Operating System/Browser (if using the web)
N/A
Dropbox App Version/Browser Version
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Megan

Hi @aschusterp, let's have a look into this!

Have you tried the same thing with a smaller file, and do you keep receiving the same error? Do you mind sending over a screenshot of the exact error message that you see on your end? 

One more important thing: Are you using the context menu to make the file available offline, clicking the cloud icon, or double-clicking the file to open it?

This will help us figure out the issue. Thanks a bunch!