NSInvalidArgument Exception: [__NSPlaceholderDictionary initWithObjects:forKeys:count:]: attempt to insert nil object from objects[1]

[joncottrell]

Version 5.2.6 of the SDK. This occurred on an iPhone 15 on iOS 18.0.1

The http request right before the error was (I believe this might have caused it):
PATCH: https://api.onesignal.com/apps/[ID]/users/by/onesignal_id/[ID]

[__NSPlaceholderDictionary initWithObjects:forKeys:count:]: attempt to insert nil object from objects[1]

Is this an SDK issue or bad data coming from one Signal? Not sure how to be able to tell.

[nan-li]

Hi @joncottrell thanks for reporting. Is this a crash you experienced, or is this a crash from a crash reporting service?
Do you have the full crash report?

[joncottrell]

This was from a crash reporting service. I unfortunately don't have the full crash report. Here's what I have access to: OS Version: iOS 18.0.1 (22A3370) Report Version: 104 Exception Type: EXC_CRASH (SIGABRT) Crashed Thread: 9 Application Specific Information: *** -[__NSPlaceholderDictionary initWithObjects:forKeys:count:]: attempt to insert nil object from objects[1] Thread 9 Crashed: 0 CoreFoundation 0x305e4a08c __exceptionPreprocess 1 libobjc.A.dylib 0x3004bb2e0 objc_exception_throw 2 CoreFoundation 0x305ddc418 -[__NSPlaceholderDictionary initWithObjects:forKeys:count:] 3 CoreFoundation 0x305ddc034 +[NSDictionary dictionaryWithObjects:forKeys:count:] 4 OneSignalCore 0x10282606c -[OneSignalClient handleJSONNSURLResponse:data:error:isAsync:withRequest:onSuccess:onFailure:] 5 OneSignalCore 0x102825338 __54-[OneSignalClient executeRequest:onSuccess:onFailure:]_block_invoke 6 CFNetwork 0x3087cdaf4 __40-[__NSURLSessionLocal taskForClassInfo:]_block_invoke 7 CFNetwork 0x3087cd8b0 __49-[__NSCFLocalSessionTask _task_onqueue_didFinish]_block_invoke_2 8 libdispatch.dylib 0x3157ba36c _dispatch_call_block_and_release 9 libdispatch.dylib 0x3157bc0cc _dispatch_client_callout 10 libdispatch.dylib 0x3157c36d4 _dispatch_lane_serial_drain 11 libdispatch.dylib 0x3157c4210 _dispatch_lane_invoke 12 libdispatch.dylib 0x3157cf254 _dispatch_root_queue_drain_deferred_wlh 13 libdispatch.dylib 0x3157ceaa0 _dispatch_workloop_worker_thread 14 libsystem_pthread.dylib 0x414556c78 _pthread_wqthread 15 libsystem_pthread.dylib 0x414553484 start_wqthread Thread 0 0 libsystem_kernel.dylib 0x3a5af3728 mach_msg2_trap 1 libsystem_kernel.dylib 0x3a5af6e34 mach_msg2_internal 2 libsystem_kernel.dylib 0x3a5af6d4c mach_msg_overwrite 3 libsystem_kernel.dylib 0x3a5af6b98 mach_msg 4 CoreFoundation 0x305e1a7c8 __CFRunLoopServiceMachPort 5 CoreFoundation 0x305e19e74 __CFRunLoopRun 6 CoreFoundation 0x305e195b4 CFRunLoopRunSpecific 7 GraphicsServices 0x39d3971c0 GSEventRunModal 8 UIKitCore 0x30b13a2bc -[UIApplication _run] 9 UIKitCore 0x30b1e8dd8 UIApplicationMain 10 SwiftUI 0x30ec04800 closure in KitRendererCommon 11 SwiftUI 0x30ebe1e64 runApp<T> 12 SwiftUI 0x30ebe4d64 App.main 13 Scenario 0x20219e97c <redacted> 14 <unknown> 0x1a885cd34 <redacted> Thread 1 0 libsystem_kernel.dylib 0x3a5af9250 __semwait_signal 1 libsystem_c.dylib 0x31585ba74 nanosleep 2 libsystem_c.dylib 0x3158b954c sleep 3 Scenario 0x202335560 __cxa_throw 4 libsystem_pthread.dylib 0x414558378 _pthread_start Thread 2 name: SentryCrash Exception Handler (Secondary) 0 libsystem_kernel.dylib 0x3a5af3728 mach_msg2_trap 1 libsystem_kernel.dylib 0x3a5af6e34 mach_msg2_internal 2 libsystem_kernel.dylib 0x3a5af4c98 thread_suspend 3 Scenario 0x20231b7e0 __cxa_throw 4 libsystem_pthread.dylib 0x414558378 _pthread_start Thread 3 name: SentryCrash Exception Handler (Primary) 0 libsystem_kernel.dylib 0x3a5af3728 mach_msg2_trap 1 libsystem_kernel.dylib 0x3a5af6e34 mach_msg2_internal 2 libsystem_kernel.dylib 0x3a5af6d4c mach_msg_overwrite 3 libsystem_kernel.dylib 0x3a5af6b98 mach_msg 4 Scenario 0x20231b80c __cxa_throw 5 libsystem_pthread.dylib 0x414558378 _pthread_start Thread 4 name: io.sentry.app-hang-tracker 0 libsystem_kernel.dylib 0x3a5af9250 __semwait_signal 1 libsystem_c.dylib 0x31585ba74 nanosleep 2 Foundation 0x3037fb738 +[NSThread sleepForTimeInterval:] 3 Scenario 0x2022fbabc <redacted> 4 Foundation 0x3036f4154 __NSThread__start__ 5 libsystem_pthread.dylib 0x414558378 _pthread_start Thread 5 name: com.apple.uikit.eventfetch-thread 0 libsystem_kernel.dylib 0x3a5af3728 mach_msg2_trap 1 libsystem_kernel.dylib 0x3a5af6e34 mach_msg2_internal 2 libsystem_kernel.dylib 0x3a5af6d4c mach_msg_overwrite 3 libsystem_kernel.dylib 0x3a5af6b98 mach_msg 4 CoreFoundation 0x305e1a7c8 __CFRunLoopServiceMachPort 5 CoreFoundation 0x305e19e74 __CFRunLoopRun 6 CoreFoundation 0x305e195b4 CFRunLoopRunSpecific 7 Foundation 0x3036e2ffc -[NSRunLoop(NSRunLoop) runMode:beforeDate:] 8 Foundation 0x3036e2e4c -[NSRunLoop(NSRunLoop) runUntilDate:] 9 UIKitCore 0x30b14d710 -[UIEventFetcher threadMain] 10 Foundation 0x3036f4154 __NSThread__start__ 11 libsystem_pthread.dylib 0x414558378 _pthread_start Thread 6 name: com.apple.NSURLConnectionLoader 0 libsystem_kernel.dylib 0x3a5af3728 mach_msg2_trap 1 libsystem_kernel.dylib 0x3a5af6e34 mach_msg2_internal 2 libsystem_kernel.dylib 0x3a5af6d4c mach_msg_overwrite 3 libsystem_kernel.dylib 0x3a5af6b98 mach_msg 4 CoreFoundation 0x305e1a7c8 __CFRunLoopServiceMachPort 5 CoreFoundation 0x305e19e74 __CFRunLoopRun 6 CoreFoundation 0x305e195b4 CFRunLoopRunSpecific 7 CFNetwork 0x30885ff40 +[__CFN_CoreSchedulingSetRunnable _run:] 8 Foundation 0x3036f4154 __NSThread__start__ 9 libsystem_pthread.dylib 0x414558378 _pthread_start Thread 7 0 libsystem_kernel.dylib 0x3a5af34b0 __workq_kernreturn 1 libsystem_pthread.dylib 0x414556cc4 _pthread_wqthread Thread 8 0 libsystem_kernel.dylib 0x3a5af34b0 __workq_kernreturn 1 libsystem_pthread.dylib 0x414556cc4 _pthread_wqthread Thread 9 Crashed: 0 CoreFoundation 0x305e4a08c __exceptionPreprocess 1 libobjc.A.dylib 0x3004bb2e0 objc_exception_throw 2 CoreFoundation 0x305ddc418 -[__NSPlaceholderDictionary initWithObjects:forKeys:count:] 3 CoreFoundation 0x305ddc034 +[NSDictionary dictionaryWithObjects:forKeys:count:] 4 OneSignalCore 0x10282606c -[OneSignalClient handleJSONNSURLResponse:data:error:isAsync:withRequest:onSuccess:onFailure:] 5 OneSignalCore 0x102825338 __54-[OneSignalClient executeRequest:onSuccess:onFailure:]_block_invoke 6 CFNetwork 0x3087cdaf4 __40-[__NSURLSessionLocal taskForClassInfo:]_block_invoke 7 CFNetwork 0x3087cd8b0 __49-[__NSCFLocalSessionTask _task_onqueue_didFinish]_block_invoke_2 8 libdispatch.dylib 0x3157ba36c _dispatch_call_block_and_release 9 libdispatch.dylib 0x3157bc0cc _dispatch_client_callout 10 libdispatch.dylib 0x3157c36d4 _dispatch_lane_serial_drain 11 libdispatch.dylib 0x3157c4210 _dispatch_lane_invoke 12 libdispatch.dylib 0x3157cf254 _dispatch_root_queue_drain_deferred_wlh 13 libdispatch.dylib 0x3157ceaa0 _dispatch_workloop_worker_thread 14 libsystem_pthread.dylib 0x414556c78 _pthread_wqthread 15 libsystem_pthread.dylib 0x414553484 start_wqthread Thread 10 0 libsystem_kernel.dylib 0x3a5af34b0 __workq_kernreturn 1 libsystem_pthread.dylib 0x414556cc4 _pthread_wqthread EOF <https://loop-dot-co.sentry.io/issues/6044510284/?project=6556557&query=is%3Aunresolved%20issue.priority%3A%5Bhigh%2C%20medium%5D&referrer=issue-stream&stream_index=1#replay>

…

On Tue, Nov 5, 2024 at 9:57 AM Nan ***@***.***> wrote: Hi @joncottrell <https://github.com/joncottrell> thanks for reporting. Is this a crash you experienced, or is this a crash from a crash reporting service? Do you have the full crash report? — Reply to this email directly, view it on GitHub <#105 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AAL6GVJE5QSNI3UUCFM7GADZ7EBJFAVCNFSM6AAAAABRHBZY5WVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZDINJXHAZTCMRTG4> . You are receiving this because you were mentioned.Message ID: ***@***.***>

[djtarazona]

Many of our users are experiencing this crash as well since we updated from 5.2.2 to 5.2.6.

Here's a crash report from Sentry: https://saturntech.sentry.io/share/issue/0c1c47b804f34f1c955f9be854fd676d/

[joncottrell]

Thank you for sharing. I had updated from 3.x so I didn't know how far back I needed to go! I went to 5.2.2 for now.

[theoks]

We're experiencing the exact same crash. What's the minimum version that this doesn't happen?

[sterien7]

*** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '*** -[__NSPlaceholderDictionary initWithObjects:forKeys:count:]: attempt to insert nil object from objects[1]'
*** First throw call stack:
(
	0   CoreFoundation                      0x00000001804b757c __exceptionPreprocess + 172
	1   libobjc.A.dylib                     0x000000018008eda8 objc_exception_throw + 72
	2   CoreFoundation                      0x0000000180526ca4 -[__NSPlaceholderDictionary initWithObjects:forKeys:count:] + 660
	3   CoreFoundation                      0x00000001804b5e24 +[NSDictionary dictionaryWithObjects:forKeys:count:] + 48
	4   OneSignalCore                       0x0000000103f94ff8 -[OneSignalClient handleJSONNSURLResponse:data:error:isAsync:withRequest:onSuccess:onFailure:] + 1452
	5   OneSignalCore                       0x0000000103f942c4 __54-[OneSignalClient executeRequest:onSuccess:onFailure:]_block_invoke + 44
	6   CFNetwork                           0x00000001847d6dcc __40-[__NSURLSessionLocal taskForClassInfo:]_block_invoke + 500
	7   CFNetwork                           0x00000001847ede40 __49-[__NSCFLocalSessionTask _task_onqueue_didFinish]_block_invoke_2 + 152
	8   libdispatch.dylib                   0x00000001040f0ec0 _dispatch_call_block_and_release + 24
	9   libdispatch.dylib                   0x00000001040f27b8 _dispatch_client_callout + 16
	10  libdispatch.dylib                   0x00000001040faaac _dispatch_lane_serial_drain + 912
	11  libdispatch.dylib                   0x00000001040fb7b0 _dispatch_lane_invoke + 420
	12  libdispatch.dylib                   0x00000001041081f0 _dispatch_root_queue_drain_deferred_wlh + 324
	13  libdispatch.dylib                   0x000000010410775c _dispatch_workloop_worker_thread + 732
	14  libsystem_pthread.dylib             0x0000000103f17814 _pthread_wqthread + 284
	15  libsystem_pthread.dylib             0x0000000103f165d4 start_wqthread + 8

[skarol]

We are also experiencing the same crash.

[urayoanm]

We're experiencing the exact same crash. What's the minimum version that this doesn't happen?

Looks like 5.2.2 is stable

From @joncottrell

Thank you for sharing. I had updated from 3.x so I didn't know how far back I needed to go! I went to 5.2.2 for now.

[angelina-fr-ios]

We are also experiencing the same crash

[djtarazona]

@nan-li Any updates on a fix for this crash? Thanks!

[nan-li]

Apologies for not following up but this has been fixed in Release 5.2.8