Crashed: com.apple.root.default-qos

Question

Created Aug ’18

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Hi, recently I just received a crash report from fabric.io. I am new to iOS, I do not really know what does the crash means. Can someone please explain it to me? Thank you very much!

Crashed: com.apple.root.default-qos
0  libsystem_kernel.dylib         0x182287d74 __abort_with_payload + 8
1  libsystem_kernel.dylib         0x1822844d0 abort_with_payload_wrapper_internal + 100
2  libsystem_kernel.dylib         0x1822844fc system_set_sfi_window + 10
3  TCC                            0x1854a0498 __TCCAccessRequest_block_invoke_2.80 + 222
4  TCC                            0x1854a03b8 __CRASHING_DUE_TO_PRIVACY_VIOLATION__ + 682
5  TCC                            0x1854a33d4 __tccd_send_block_invoke + 340
6  libxpc.dylib                   0x182382f38 _xpc_connection_reply_callout + 80
7  libxpc.dylib                   0x182382ea8 _xpc_connection_call_reply + 40
8  libdispatch.dylib              0x1821469a0 _dispatch_client_callout + 16
9  libdispatch.dylib              0x1821550d4 _dispatch_queue_override_invoke + 644
10 libdispatch.dylib              0x182156a50 _dispatch_root_queue_drain + 540
11 libdispatch.dylib              0x1821567d0 _dispatch_worker_thread3 + 124
12 libsystem_pthread.dylib        0x18234f100 _pthread_wqthread + 1096
13 libsystem_pthread.dylib        0x18234ecac start_wqthread + 4

Answered by DTS Engineer in 327638022

It means two things:

Frame 4 of the backtrace,
```
__CRASHING_DUE_TO_PRIVACY_VIOLATION__
```
, indicates that your app tried to do something that’s privacy-sensitive (access photos, access contacts, and so on) and the system was unable to ask the user to authorise that action because your app’s
```
Info.plist
```
does not contain the appropriate justification string.
Your third-party crash reporter has lost some info that would help you debug this more easily, namely, the specific privacy-sensitive action that triggered this.

Each privacy-sensitive subsystem has its own

Info.plist

key. For example, the Photos framework uses

NSPhotoLibraryUsageDescription

. You’ll have to track down the subsystem that’s causing this problem, find the appropriate

Info.plist

key, and then add that to your app.

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Quinn “The Eskimo!”
Apple Developer Relations, Developer Technical Support, Core OS/Hardware

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Answer 1

DTS Engineer OP

Apple

Aug ’18

Accepted Answer