On 19 Sep 2016, at 10:02, Gabriel Zachmann <z...@tu-clausthal.de> wrote:
> Thanks a lot for your response.
> When I replace this line 
>       [NSBundle loadNibNamed: @"ConfigureSheet" owner: self];
> by this:
>       NSBundle * bundle = [NSBundle bundleForClass:[self class]];
>       [bundle loadNibNamed: @"ConfigureSheet" owner: self topLevelObjects: 
> nil];
> then System preferences crashes with this stack trace:

The problem is likely that you aren’t retaining all of the top level objects in 
the nib file, and something you’re relying on is being disposed of.  The 
simplest fix for older code that was using the original -loadNibNamed:owner: 
method is often just to add an NSArray member variable to your class to hold 
the top level object references.

Kind regards,




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