I doubt it will lead to a top crasher but I can't find the cause:
Exception Type: EXCCRASH (SIGABRT)
Exception Codes: 0x0000000000000000, 0x0000000000000000
Exception Note: EXCCORPSENOTIFY
Triggered by Thread: 5
Last Exception Backtrace:
0 CoreFoundation 0x1995525ac exceptionPreprocess + 220 (NSException.m:199)
1 libobjc.A.dylib 0x1ad5cc42c objcexceptionthrow + 60 (objc-exception.mm:565)
2 CloudKit 0x19f3734fc -[CKScheduler submitActivity:withCriteria:] + 520 (CKScheduler.m:145)
3 CloudKit 0x19f377020 -[CKScheduler getDeviceCountForActivity:completionHandler:] + 432 (CKScheduler.m:561)
4 CloudKit 0x19f375c20 -[CKScheduler getSuggestedXPCActivityCriteriaForActivity:completionHandler:] + 960 (CKScheduler.m:371)
5 CloudKit 0x19f373204 -[CKScheduler submitActivity:] + 332 (CKScheduler.m:91)
6 CoreData 0x19f727cc0 _65-[NSCloudKitMirroringDelegate checkAndScheduleImportIfNecessary:]blockinvoke2 + 352 (NSCloudKitMirroringDelegate.m:2305)
7 CoreData 0x19f618410 developerSubmittedBlockToNSManagedObjectContextPerform + 164 (NSManagedObjectContext.m:3880)
8 libdispatch.dylib 0x199150ac8 dispatchclientcallout + 20 (object.m:559)
9 libdispatch.dylib 0x19915ec8c dispatchlanebarriersyncinvokeandcomplete + 60 (queue.c:998)
10 CoreData 0x19f4e5b9c -[NSManagedObjectContext performBlockAndWait:] + 268 (NSManagedObjectContext.m:3997)
11 CoreData 0x19f727af0 _65-[NSCloudKitMirroringDelegate checkAndScheduleImportIfNecessary:]blockinvoke + 272 (NSCloudKitMirroringDelegate.m:2260)
12 CoreData 0x19f777704 -[PFCloudKitStoreMonitor performBlock:] + 116 (PFCloudKitStoreMonitor.m:140)
13 CoreData 0x19f71f0e8 -[NSCloudKitMirroringDelegate checkAndScheduleImportIfNecessary:] + 204 (NSCloudKitMirroringDelegate.m:2255)
14 CoreData 0x19f721824 -[NSCloudKitMirroringDelegate importFinishedWithResult:importer:] + 312 (NSCloudKitMirroringDelegate.m:1041)
15 CoreData 0x19f721684 _57-[NSCloudKitMirroringDelegate performImportWithRequest:]blockinvoke2 + 256 (NSCloudKitMirroringDelegate.m:1004)
16 CoreData 0x19f680250 70-[PFCloudKitImporter databaseFetchFinishWithContext:error:completion:]blockinvoke + 1000 (PFCloudKitImporter.m:275)
17 CoreData 0x19f777704 -[PFCloudKitStoreMonitor performBlock:] + 116 (PFCloudKitStoreMonitor.m:140)
18 CoreData 0x19f67fe4c -[PFCloudKitImporter databaseFetchFinishWithContext:error:completion:] + 344 (PFCloudKitImporter.m:216)
19 CoreData 0x19f67fc50 54-[PFCloudKitImporter importIfNecessaryWithCompletion:]blockinvoke2.83 + 52 (PFCloudKitImporter.m:133)
20 libdispatch.dylib 0x19914efd0 dispatchcallblockandrelease + 32 (init.c:1454)
21 libdispatch.dylib 0x199150ac8 dispatchclientcallout + 20 (object.m:559)
22 libdispatch.dylib 0x199157c08 dispatchlaneserialdrain + 580 (inlineinternal.h:2548)
23 libdispatch.dylib 0x199158768 dispatchlaneinvoke + 460 (queue.c:3862)
24 libdispatch.dylib 0x199162528 dispatchworkloopworkerthread + 708 (queue.c:6590)
25 libsystempthread.dylib 0x1e0aac908 pthreadwqthread + 276 (pthread.c:2194)
26 libsystempthread.dylib 0x1e0ab377c start_wqthread + 8
jakehao
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I have the same crash, it only happens on iOS14 devices, no such issues before iOS14 is released. Crash stack:
Last Exception Backtrace:
0 CoreFoundation 0x18e36e314 _exceptionPreprocess + 220 (NSException.m:199)
1 libobjc.A.dylib 0x18e08142c objcexceptionthrow + 60 (objc-exception.mm:565)
2 CloudKit 0x193de4808 -[CKScheduler submitActivity:withCriteria:] + 520 (CKScheduler.m:145)
3 CloudKit 0x193de832c -[CKScheduler getDeviceCountForActivity:completionHandler:] + 432 (CKScheduler.m:561)
4 CloudKit 0x193de6f2c -[CKScheduler getSuggestedXPCActivityCriteriaForActivity:completionHandler:] + 960 (CKScheduler.m:371)
5 CloudKit 0x193de4510 -[CKScheduler submitActivity:] + 332 (CKScheduler.m:91)
6 CoreData 0x193884414 -[NSCloudKitMirroringDelegate beginWatchingForChanges] + 1156 (NSCloudKitMirroringDelegate.m:573)
7 CoreData 0x1938861d4 52-[NSCloudKitMirroringDelegate performSetupRequest:]blockinvoke + 476 (NSCloudKitMirroringDelegate.m:890)
8 CoreData 0x193884f98 _92-[NSCloudKitMirroringDelegate openTransactionWithLabel:assertionLabel:andExecuteWorkBlock:]blockinvoke + 72 (NSCloudKitMirroringDelegate.m:705)
9 libdispatch.dylib 0x18dffffd0 dispatchcallblockandrelease + 32 (init.c:1454)
10 libdispatch.dylib 0x18e001ac8 dispatchclientcallout + 20 (object.m:559)
11 libdispatch.dylib 0x18e008c08 dispatchlaneserialdrain + 580 (inlineinternal.h:2548)
12 libdispatch.dylib 0x18e009768 dispatchlaneinvoke + 460 (queue.c:3862)
13 libdispatch.dylib 0x18e013528 dispatchworkloopworkerthread + 708 (queue.c:6590)
14 libsystempthread.dylib 0x18e06e908 pthreadwqthread + 276 (pthread.c:2193)
15 libsystempthread.dylib 0x18e07577c start_wqthread + 8
My case is exactly like @Michele Longhi's. Except my solution is keeping a singleton of the NSPersistentCloudKitContainer instead of destroying and recreating it multiple times.
Seriously, the stability for App Store Connect sales page is horrible. This is happening on Chrome and Safari, for a long time.
Same happens to me, this begins after I use Swift Concurrency, not sure if related.
Please add an API to allow reverting to the old tab bar, do not punish developers who like to adopt native UI controls. For some Apps, there will be huge changes needed to satisfy this new Tabbar on iPad, to an extend that it is much easier to just rewrite a TabBar.