Crash using Mabbox iOS SDK(Annotation view)

[macro-shen]

a issue from a iOS developer:

Platform: iOS
Mapbox SDK version: 3.5.0

Steps to trigger behavior

find a crash in Mabbox, and it often happens. The crash log is like this:
*** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: 'Annotation view's annotation property should not be nil.'

Add a gesture to the map, but don't know the problem.
And there is an online log for this crash: http://crashes.to/s/468bb46a57c

For this bug, I have a problem, I code like this, the problem is: if the annotation is nil, there cannot be a Annotation view, so I don't know how could this bug happen.

- (MGLAnnotationView *) mapView:(MGLMapView *)mapView viewForAnnotation:(id<MGLAnnotation>)annotation {
    if( ![annotation isKindOfClass:[CDRunGroundAnnotationEntity class]] ) {
        return nil;
    }
}

[boundsj]

Hi @macro-shen this is most likely a duplicate of the issue described in #8754 and #8755. That issue was fixed in #9025 and the fix will be in the our iOS map SDK v3.6.0 beta 1 release this week.

I'm going to close this as fixed but please feel free to reopen if the issue still occurs when testing with the the 3.6.0 beta 1 version that'll be available soon.

[frederoni]

The implementation above should yield a compile-time error saying “Control reaches end of non-void function”. Looks like warnings or errors about return type has been disabled in the build settings but it should be treated as an error by default.
GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;