iOS crash libobjc.A.dylib objc_msgSend
问题 I am getting the crash shown below in Crashlytics. I am unable to understand where this is coming form within the app. Unfortunately I have never been able to generate this crash myself, but it is occurring in the wild. There is only one reference to the app name, and there is nothing that leads to show where in the app this is coming from. Is the fact that there is no data as to where in the app this occurs, an indication of an issue occurring during didFinishLaunchingWithOptionsand thus not