App crash on startup

One of my customers has reported that my app crashes at startup. He reported that it happened before upgrading to Mojave and afterwards. He has sent a crash log (), but the crashed thread doesn’t have any reference to any of my methods – it’s only when we get to thread 4 that I start to see some familiar names.

Can anybody point me in the right direction here?

It may be related to another user who posted a review saying it crashed on startup under Mojave.


I would check out Preferences.writePrefs . Do you have logging in your app? That means adding something like

Globals.theErrorLog.logitem currentMethodName

to the beginning and the end of each suspect function in all affected classes.