You have a lot of dupes in your nib file connections.
For example, select the AppDelegate in the nib in IB, and look at the
Connections Inspector.
You'll see it has 2 Main Menu referencing outlets.
So it's hitting a random one of the two.
You have this kind of duplication in lots of places in your nib.
Rewire your nib.
> On Feb 13, 2017, at 23:12, Andreas Falkenhahn <andr...@falkenhahn.com> wrote:
>
> On 12.02.2017 at 21:49 Kyle Sluder wrote:
>
>> There are plenty of ways to write refcounting bugs. But the
>> refcounting bug is just a theory. All we know for sure is that
>> something is disabling the menu items. I assume you have not turned
>> off the default autoenablesItems property on the menu, so that leaves a few
>> possibilities:
>
>> 1. The target of your menu items is being replaced with an object
>> that does not respond to -menuClick:.
>> 2. The target of your menu items is being deallocated, and a new
>> object is being allocated in its place that does not respond to -menuClick:.
>> 3. The target of your menu items is being deallocated, and
>> NSMenuItem’s weak target pointer is being nilled out (special case of #1).
>> 4. The menu has a delegate, and it implements of one of the menu
>> update callbacks to disable the menu items.
>> 5. Some arbitrary object in your app is grabbing a reference to the menu
>> items and disabling them.
>
> Thanks for the feedback. Unfortunately, I'm pretty much out of ideas now.
>
> I started cutting down my program to the absolute minimum to see if the
> error would go away. Well, it didn't. This is the code that's left of my
> program now:
>
> #import "AppDelegate.h"
>
> @implementation AppDelegate
> - (void) clickButton:(id)sender {}
> - (void) menuClick:(id)sender {}
> - (void) applicationDidFinishLaunching:(NSNotification *) aNotification
> {
> [mainWindow makeKeyAndOrderFront:nil];
> }
> @end
>
> ----
>
> #import <Cocoa/Cocoa.h>
>
> int main(int argc, char *argv[])
> {
> return NSApplicationMain(argc, argv);
> }
>
> And the error is still there. Bottom line: The error must be in the
> MainMenu.nib or in the Xcode project. Maybe Xcode has messed up one of
> the files when migrating it from the old Xcode on PowerPC to Xcode 8.
>
> Unfortunately, I don't know where to look because I remember nothing about
> Interface Builder. That's why I have uploaded a VERY SMALL test project
> here: http://www.falkenhahn.com/tmp/guitest.tar.gz
>
> It really only contains the code quoted above, a single window with a
> single button and the original menu bar that is behaving erratically.
>
> As I said in my first mail, the really confusing fact is that it usually
> works just fine. But in every 3rd attempt or so suddenly all menus are
> disabled and I have no idea what's going on! It is really weird but it
> is clearly reproducible. I know I said before that it fails in 1 out of 10
> attempts but it's more like 1 in 3 attempts. It's really clearly reproducible.
> It happens all the time though not always.
>
> As I'm really out of ideas now I'd be extremely glad if somebody with
> IB experience could just take a quick look at this project and maybe come up
> with an explanation. As I said, it's an absolutely minimal project.
> It should be really straightforward to analyze for people who are experienced
> with IB.
>
> Thanks a lot for any help!
>
> --
> Best regards,
> Andreas Falkenhahn mailto:andr...@falkenhahn.com
>
>
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