On 05/09/2013, at 12:21 PM, Jonathan Taylor <jonathan.tay...@glasgow.ac.uk> wrote:
> Searching for those terms finds suggestions that this may be associated with > updating progress bars from a secondary thread. I still see the error even > after removing the only progress bar from my program; I don't know whether > the cause is something genuinely associated with progress bars, or whether > it's just that it's easy to slip up and update them from a secondary thread, > triggering this error. You can't do any UI-related updates from a secondary thread, you must ask the main thread to do it. It might not be progress bars but anything at all that's being drawn from a secondary thread. The error itself could indicate that an internal data structure was used or updated by another thread while in an inconsistent state. --Graham _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com