Crash [__NSArrayM getObjects:range:]: range {0, 3} extends beyond bounds [0 .. 1]

[ghost]

after installing AppsFlyerFramework we received Crash on our Fabrics.Crash details as follow.

0	CoreFoundation	__exceptionPreprocess
1	libobjc.A.dylib	objc_exception_throw
2	CoreFoundation	_CFArgv
3	CoreFoundation	-[__NSArrayM getObjects:range:]
4	CoreFoundation	-[NSArray initWithArray:range:copyItems:]
5	UIKit	+[_UICanvas canvases]
6	UIKit	+[_UIApplicationCanvas canvases]
7	UIKit	+[_UIApplicationCanvas mostActiveCanvas]
8	UIKit	-[UIApplication isSuspendedEventsOnly]
9	UIKit	UpdateSystemSoundActiveStatus
10	UIKit	IsSystemSoundEnabled
11	UIKit	UpdateSystemSoundActiveStatus
12	UIKit	-[UIDevice _updateSystemSoundActiveStatus:]
13	CoreFoundation	CFNOTIFICATIONCENTER_IS_CALLING_OUT_TO_AN_OBSERVER
14	CoreFoundation	_CFXRegistrationPost
15	CoreFoundation	___CFXNotificationPost_block_invoke
16	CoreFoundation	-[_CFXNotificationRegistrar find:object:observer:enumerator:]
17	CoreFoundation	_CFXNotificationPost
18	Foundation	-[NSNotificationCenter postNotificationName:object:userInfo:]
19	iFax iOS	-[AppsFlyerTracker getCounter:]
20	iFax iOS	-[AppsFlyerTracker getEventParameters:]
21	iFax iOS	-[AppsFlyerTracker callServerWithEventName:value:withDictionary:isEvent:isIAd:]
22	iFax iOS	-[AppsFlyerTracker callServerWithEventName:value:isInAppEvent:isIAd:]
23	libdispatch.dylib	_dispatch_client_callout
24	libdispatch.dylib	_dispatch_continuation_pop$VARIANT$armv81
25	libdispatch.dylib	_dispatch_source_invoke$VARIANT$armv81
26	libdispatch.dylib	_dispatch_queue_serial_drain$VARIANT$armv81
27	libdispatch.dylib	_dispatch_queue_invoke$VARIANT$armv81
28	libdispatch.dylib	_dispatch_root_queue_drain_deferred_wlh$VARIANT$armv81
29	libdispatch.dylib	_dispatch_workloop_worker_thread$VARIANT$armv81
30	libsystem_pthread.dylib	_pthread_wqthread
31	libsystem_pthread.dylib	start_wqthread

[andr-ggn]

Hello, @moontecholabs

• Are you listening to any NSUserDefaults changes with NSNotificationCenter?
• We have a very nice support at support@appsflyer.com for such kind of problems.

–

• There is such kind of problem already discussed at firebase-crash from November 2017 and the problem was considered to be on the Apple' side. The AppsFlyer team can workaround this by forcing the NSUserDefaults change on the main queue.

[ghost]

@andr-ggn thanks For your help

1. no we are not listening NSUserDefaults changes using NSNotificationCenter
2. OK. we will contact if any new problem occur in future

[ghost]

@andr-ggn any update on above crash.

[andr-ggn]

Hello, @moontecholabs again!

We are checking the best way to fix it on SDK side but in the meanwhile, I prepared a small workaround for you.

Please, let us know if it works for you.

//
//  AppsFlyer+Workaround.m
//
//  Created by AndreyG-AF on 10/02/17.
//

#import <objc/runtime.h>
#import <Foundation/Foundation.h>

@implementation NSUserDefaults (AppsFlyer)

+ (void)load {
    static dispatch_once_t onceToken;
    dispatch_once(&onceToken, ^{
        Class class = [self class];

        method_exchangeImplementations(class_getInstanceMethod(class, @selector(setObject:forKey:)),
                                       class_getInstanceMethod(class, @selector(af_setObject:forKey:)));

        method_exchangeImplementations(class_getInstanceMethod(class, @selector(removeObject:)),
                                       class_getInstanceMethod(class, @selector(af_removeObject:)));
    });
}

- (void)af_setObject:(NSString *)string forKey:(NSString *)key {
    dispatch_async(dispatch_get_main_queue(), ^{
        [self af_setObject:string forKey:key];
    });
}

- (void)af_removeObject:(NSString *)key {
    dispatch_async(dispatch_get_main_queue(), ^{
        [self af_removeObject:key];
    });
}

@end

[ghost]

@andr-ggn thanks for your help.We will check and update if it working.

[andr-ggn]

@moontecholabs any updates?

[ghost]

We have updated latest pod version, so now not facing.