A crashing app points out the problems of using functions that return values of ‘Any’ type. Here’s one solution.
The current macOS implementation of preferences is appalling design in every respect, and is essentially undocumented even for developers. Is this the way that macOS is heading?
Have you ever tried removing or editing a preference file, to no effect? This explains why that happens, and how to get changes to work properly.
Problems with preference files can easily crash an app, even when the file looks fine, and its permissions are correct. Here’s why and how.
Tread carefully in the Print dialog of Contacts: its liable to cause an unexpected quit.
Can you tell the difference? What is the significance of each, and do you know what to do about them? An introductory guide.
After a near-panic and interminable spin, it proved impossible to get useful diagnostic information. Here are some tools and techniques which should still be useful.
Handling of kernel panics shows a series of fundamental flaws in El Capitan, which can occur on any Mac.
Was that crash a freeze, a panic, or just a spinning beachball? And what do they mean?
For the last 15 weeks, this iMac has been freezing sporadically. I have run out of ideas, and hope that 10.11.6 fixes the bug.