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I'm getting this messages on the console when I open a NSOpenPanel and then my application crashes:

plugin com.getdropbox.dropbox.garcon interrupted
plugin com.getdropbox.dropbox.garcon interrupted
Unable to setup extension context - error: Couldn't communicate with a helper application

And in the debugger I get an warning on the Thread 6 saying this:

Queue: com.apple.NSXPCConnection.user.com.getdropbox.dropbox.garcon.apple-extension-service(serial)
    0_dispatch_barrier_async_f
12 start_wqthread
Enqueued from com.apple.NSXPCConnection.user.com.getdropbox.dropbox.garcon.apple-extension-service (Thread 6)
0_dispatch_barrier_async_f

I tried everything openning my NSOpenPannel with [openPanel runModal] and [openPanel beginSheetModalForWindow:...

I use NSOpenPanel just to open a txt file

What can I do to stop get this message and application stops crash?

The App is not sandboxed and code signed. I just trying only in the Debug-build because I don't have an apple developer account. The Mac OS X version is 10.10 and the dropbox version is 3.0.3

pableiros
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  • Please add following Information to the question to find the cause of crash: Is you App sandboxed (influenced XPC)? Is your App code signed (influences OpenPanel)? Is it only in the DEBUG-Build? Do you open/run the Panel from main-thread? Which OS-Version? Which version of DropBox? – mahal tertin Dec 16 '14 at 09:35
  • We (Dropbox) would be happy to take a look at this. Can you please open a ticket at https://www.dropbox.com/support , then copy me your ticket ID (found at https://dropbox.zendesk.com )? I'll route it to the right people. Thanks! – Greg Dec 17 '14 at 21:19
  • @Greg Any update on getting this solved? Happens in Xcode for me too. – Thomas Krajacic Feb 18 '15 at 07:55
  • I don't believe we ever heard from the original developer here and so weren't able to sort this out. Please feel free to open a ticket yourself and copy me the ticket ID and I'll get this to the right people. Thanks! – Greg Feb 18 '15 at 15:39
  • @Greg I too am seeing this bug as well now. Did this person ever open up that bug? I'd be happy to myself if need be. – P.M. Jun 24 '15 at 21:18
  • I don't believe we ever heard back on this. Please do open one and reply here with the ticket ID. Thanks! – Greg Jun 24 '15 at 22:36
  • I'm still having this problem with "Dropbox Finder Integration" – pableiros Jun 25 '15 at 02:38
  • @Greg I am suffering from it, and it blocks the OSX app(debug version) to use presentViewControllerAsSheet. I have no idea what's the relation between them.. but it happened. – Adison Feb 15 '16 at 09:38
  • I can't help with this myself, but if you (or anyone else) are still having trouble with this @Adison, please open a ticket and post the ID so I can get it to the right people. Thanks! – Greg Feb 15 '16 at 19:24

2 Answers2

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So I had the same problem while working with Python. I think its a problem with the Finder integration of Dropbox in Yosemite. I am guessing you are using Finder (for selecting files, etc.) in your application.

Disabling the Finder-Dropbox integration worked for me:

  1. Go to Dropbox icon > Cog wheel at the bottom left > Preferences
  2. Disable "Enable Finder Integration"

I don't know if there is a proper way to solve this as of yet, but this workaround seems to work.

My versions: Dropbox 3.0.3, Yosemite 10.90

Reference: applehelpwriter.com - How to remove Dropbox green blobs

Gopinath
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I was getting this error: "plugin com.getdropbox.dropbox.garcon invalidated" when using NSOpen panel from Swift "in house" program; not sandboxed not code-signed.

OS X: El Capitan: 10.11.4 (15E65) Dropbox: Reporting "up to date" as of today (9 April 2016)

Disabling Finder integration helped getting rid of messages.

Gorazd
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    Disabling Dropbox Finder integration for me isn't a good way to solve the problem because for every user I have, I'm not going to tell him to disable his Dropbox Finder integration to use the app properly – pableiros Apr 28 '16 at 03:53