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IOS App Crashes on launch when opened first by a Branch link

See original GitHub issue

In the latest Unity Branch commit V0.3.24 “the one that fixed IOS @/# import bug”

When an App is being first opened by a Branch link in IOS, it crashes. When an App is being sent to foreground after being suspended, it functions correctly.

“OurApp” is the name of our game app //////////////////////////////////////////////////////////////////////////////////// //////////////////////////////////Error log////////////////////////////////////// ////////////////////////////////////////////////////////////////////////////////////

Thread 0 (crashed)
0   libsystem_kernel.dylib      >>>>>        __pthread_kill 
1   libsystem_c.dylib        >>>>>           abort 
2   OurApp              >>>>>              -[UnityPLCrashReporter generateLiveReportWithThread:] 
3   OurApp           >>>>>                 UncaughtExceptionHandler(NSException*) 
4   CoreFoundation           >>>>>           __handleUncaughtException 
5   libobjc.A.dylib          >>>>>           _objc_terminate() 
6   libc++abi.dylib          >>>>>           std::__terminate(void (*)()) 
7   libc++abi.dylib          >>>>>           __cxxabiv1::exception_cleanup_func(_Unwind_Reason_Code, _Unwind_Exception*) 
8   libobjc.A.dylib          >>>>>           _objc_exception_destructor(void*) 
9   CoreFoundation         >>>>>             -[NSException initWithCoder:] 
10  OurApp                >>>>>            +[Branch setBranchKey:] 
11  OurApp               >>>>>             +[Branch getInstance:] 
12  OurApp            >>>>>                -[BranchUnityWrapper continueUserActivity:] 
13  OurApp            >>>>>                -[BranchAppController application:continueUserActivity:restorationHandler:] 
14  UIKit                >>>>>               -[UIApplication activityContinuationManager:continueUserActivity:] 
15  UIKit              >>>>>                 -[UIActivityContinuationManager _continueUserActivity:] 
16  UIKit               >>>>>                __72-[UIActivityContinuationManager handleActivityContinuation:isSuspended:]_block_invoke_3 
17  UIKit               >>>>>                -[_UIApplicationModalProgressController _callAndClearDismissalHandlerWasDismissedByUser:] 
18  UIKit              >>>>>                 -[_UIApplicationModalProgressController hideAfterMinimumUptimeWithDismissalHandler:] 
19  UIKit              >>>>>                 -[UIApplication activityContinuationManager:hideProgressUIWithCompletion:] 
20  UIKit              >>>>>                 -[UIActivityContinuationManager _endCurrentActivityContinuationWithCompletion:] 
21  UIKit               >>>>>                __72-[UIActivityContinuationManager handleActivityContinuation:isSuspended:]_block_invoke_2 
22  libdispatch.dylib       >>>>>            _dispatch_call_block_and_release 
23  libdispatch.dylib       >>>>>            _dispatch_client_callout 
24  libdispatch.dylib        >>>>>           _dispatch_main_queue_callback_4CF$VARIANT$mp 
25  CoreFoundation         >>>>>             __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__ 
26  CoreFoundation        >>>>>              __CFRunLoopRun 
27  CoreFoundation         >>>>>             CFRunLoopRunSpecific 
28  GraphicsServices      >>>>>              GSEventRunModal 
29  UIKit           >>>>>                    UIApplicationMain 
30  OurApp         >>>>>                   main 
31  libdyld.dylib       >>>>>                start 

//////////////////////////////////////////////////////////////////////////////////// ////////////////////////////////End of log////////////////////////////////////// ////////////////////////////////////////////////////////////////////////////////////

The issue holds with Unity Branch Demo.

Issue Analytics

  • State:closed
  • Created 6 years ago
  • Comments:40 (17 by maintainers)

github_iconTop GitHub Comments

antonargunovcommented, Oct 26, 2017


  1. Open Unity3d project
  2. Make some changes in Branch prefab (for example: add symbol and then delete symbol)
  3. You will see two buttons “Update IOS Wrapper” and “Update Android Manifest”
  4. Tap both
  • "Update IOS Wrapper " will add branch key into _branchKey variable in
  • “Update Android Manifest” will add changes into manifest or will create new (if you don’t have manifest at all)

All will work nice. Note: or you can add value into _branchKey manually

mahdiRemalcommented, Oct 26, 2017

The issue is resolved.

So what we learned from this issue is that with every Branch update you do, don’t forget to press on (Update IOS Wrapper). hopefully that gets automated soon.

Read more comments on GitHub >

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