Hi, I work at OneSignal, a third-party SDK, and have the following two crash reports submitted by a client for the same issue. Because the crash originates from our SDK, even if the root cause may be elsewhere, the onus is on our team to try to resolve this crash. Additionally, my information is limited as this is not our own crash report.
I'm trying to figure out why this crash happens and how we can address it within our SDK.
Crash Reported:
Fatal Exception: NSInvalidArgumentException
[NSMutableDictionary __addObject:forKey:]: object cannot be nil
Context:
Our SDK makes a call to [NSUserDefaults(NSUserDefaults) objectForKey:] on the standardUserDefaults and passes in a non-null key. It appears further up the call stack, a null value is being added to a dictionary. I assume this is the innards of how the search list is generated.
Additional Information:
The client states that it seems to happen only once per user and the scale is not extremely high but it is increasing. They are unsure what happened and when. They don't have much information about the devices except it has happened on iOS 18.
Log 1:
0 CoreFoundation 0x2d5fc __exceptionPreprocess
1 libobjc.A.dylib 0x31244 objc_exception_throw
2 CoreFoundation 0x15548 -[NSMutableDictionary __addObject:forKey:]
3 CoreFoundation 0x20850 -[__NSDictionaryM __apply:context:]
4 CoreFoundation 0x54700 ___CFPrefsDeliverPendingKVONotificationsGuts_block_invoke
5 CoreFoundation 0x52988 __CFDictionaryApplyFunction_block_invoke
6 CoreFoundation 0x52524 CFBasicHashApply
7 CoreFoundation 0x21040 CFDictionaryApplyFunction
8 CoreFoundation 0x7a6b0 _CFPrefsDeliverPendingKVONotificationsGuts
9 CoreFoundation 0x777d0 -[_CFXPreferences _deliverPendingKVONotifications]
10 CoreFoundation 0x776ac __108-[_CFXPreferences(SearchListAdditions) withSearchListForIdentifier:container:cloudConfigurationURL:perform:]_block_invoke
11 CoreFoundation 0x5cf24 normalizeQuintuplet
12 CoreFoundation 0x5cd60 -[_CFXPreferences withSearchListForIdentifier:container:cloudConfigurationURL:perform:]
13 CoreFoundation 0x5cc60 -[_CFXPreferences copyAppValueForKey:identifier:container:configurationURL:]
14 CoreFoundation 0x5c8bc _CFPreferencesCopyAppValueWithContainerAndConfiguration
15 Foundation 0xf0dcc -[NSUserDefaults(NSUserDefaults) objectForKey:]
16 OneSignalCore 0xc7c8 -[OneSignalUserDefaults keyExists:] + 61 (OneSignalUserDefaults.m:61)
17 OneSignalCore 0xc8b0 -[OneSignalUserDefaults getSavedBoolForKey:defaultValue:] + 70 (OneSignalUserDefaults.m:70)
18 OneSignalCore 0xbb10 +[OSPrivacyConsentController requiresUserPrivacyConsent] + 59 (OSPrivacyConsentController.m:59)
19 OneSignalCore 0xbc30 +[OSPrivacyConsentController shouldLogMissingPrivacyConsentErrorWithMethodName:] + 75 (OSPrivacyConsentController.m:75)
20 OneSignalCore 0x4418 +[OneSignalConfigManager shouldAwaitAppIdAndLogMissingPrivacyConsentForMethod:] + 50 (OneSignalConfigManager.m:50)
21 OneSignalOSCore 0x537c OSOperationRepo.flushDeltaQueue(inBackground:) + 140 (OSOperationRepo.swift:140)
22 OneSignalOSCore 0x4868 closure #1 in OSOperationRepo.pollFlushQueue() + 84 (OSOperationRepo.swift:84)
23 OneSignalOSCore 0x5078 thunk for @escaping @callee_guaranteed @Sendable () -> ()
24 libdispatch.dylib 0x3fa8 _dispatch_client_callout
25 libdispatch.dylib 0x745c _dispatch_continuation_pop
26 libdispatch.dylib 0x1b620 _dispatch_source_latch_and_call
27 libdispatch.dylib 0x1a1e8 _dispatch_source_invoke
28 libdispatch.dylib 0xb42c _dispatch_lane_serial_drain
29 libdispatch.dylib 0xc124 _dispatch_lane_invoke
30 libdispatch.dylib 0x1738c _dispatch_root_queue_drain_deferred_wlh
31 libdispatch.dylib 0x16bd8 _dispatch_workloop_worker_thread
32 libsystem_pthread.dylib 0x3680 _pthread_wqthread
33 libsystem_pthread.dylib 0x1474 start_wqthread
Log 2:
Fatal Exception: NSInvalidArgumentException
0 CoreFoundation 0x2d5fc __exceptionPreprocess
1 libobjc.A.dylib 0x31244 objc_exception_throw
2 CoreFoundation 0x15548 -[NSMutableDictionary __addObject:forKey:]
3 CoreFoundation 0x168f0 __72-[CFPrefsSource mergeIntoDictionary:sourceDictionary:cloudKeyEvaluator:]_block_invoke
4 CoreFoundation 0x23ecc -[__NSFrozenDictionaryM __apply:context:]
5 CoreFoundation 0x4f82c -[CFPrefsSource mergeIntoDictionary:sourceDictionary:cloudKeyEvaluator:]
6 CoreFoundation 0x783b8 -[CFPrefsSearchListSource alreadylocked_getDictionary:]
7 CoreFoundation 0x77dfc -[CFPrefsSearchListSource alreadylocked_copyValueForKey:]
8 CoreFoundation 0x77d30 -[CFPrefsSource copyValueForKey:]
9 CoreFoundation 0x77ce4 __76-[_CFXPreferences copyAppValueForKey:identifier:container:configurationURL:]_block_invoke
10 CoreFoundation 0x77690 __108-[_CFXPreferences(SearchListAdditions) withSearchListForIdentifier:container:cloudConfigurationURL:perform:]_block_invoke
11 CoreFoundation 0x5cf24 normalizeQuintuplet
12 CoreFoundation 0x5cd60 -[_CFXPreferences withSearchListForIdentifier:container:cloudConfigurationURL:perform:]
13 CoreFoundation 0x5cc60 -[_CFXPreferences copyAppValueForKey:identifier:container:configurationURL:]
14 CoreFoundation 0x5c8bc _CFPreferencesCopyAppValueWithContainerAndConfiguration
15 Foundation 0xf0dcc -[NSUserDefaults(NSUserDefaults) objectForKey:]
16 OneSignalCore 0xc7c8 -[OneSignalUserDefaults keyExists:] + 61 (OneSignalUserDefaults.m:61)
17 OneSignalCore 0xcbd8 -[OneSignalUserDefaults getSavedDoubleForKey:defaultValue:] + 107 (OneSignalUserDefaults.m:107)
18 OneSignalFramework 0x8964 +[OneSignal shouldStartNewSession] + 350 (OneSignal.m:350)
19 OneSignalFramework 0xc968 +[OneSignalTracker applicationBecameActive] + 83 (OneSignalTracker.m:83)
20 OneSignalFramework 0xb894 -[OneSignalLifecycleObserver didBecomeActive] + 84 (OneSignalLifecycleObserver.m:84)
......
55 UIKitCore 0x3ee674 -[UIApplication _run]
56 UIKitCore 0x14e88 UIApplicationMain
57 UnityFramework 0x399aef0 -[UnityFramework runUIApplicationMainWithArgc:argv:] + 96 (main.mm:96)
58 ClientsApp 0x412c main + 28 (main.mm:28)