App is crashing on Launch Screen

[im21]

When I'm testing my app on develop mode, everything is ok, but when I'm sending a test flight version of my app to the app store my app is crashing at Launch Screen and I have to open the app from recent list of iPhone.

When i run the app with Release mode i get the following error :

2017-09-07 15:45:37.158 [error][tid:com.facebook.react.JavaScript] undefined is not an object (evaluating 'console.tron.log')
2017-09-07 15:45:37.169 [fatal][tid:com.facebook.react.ExceptionsManagerQueue] Unhandled JS Exception: undefined is not an object (evaluating 'console.tron.log')
libc++abi.dylib: terminating with uncaught exception of type NSException

Crash Log

Exception Type: EXC_CRASH (SIGABRT)
Exception Codes: 0x0000000000000000, 0x0000000000000000
Exception Note: EXC_CORPSE_NOTIFY
Triggered by Thread: 3

Application Specific Information:
abort() called

Filtered syslog:
None found

Last Exception Backtrace:
(0x18dd7a1c0 0x18c7b455c 0x18dd7a108 0x1000f6e38 0x1000f1264 0x18dd80160 0x18dc73c3c 0x18dc786ec 0x1000f4d04 0x1001427fc 0x100142668 0x18cc05200 0x18cc051c0 0x18cc13444 0x18cc089a8 0x18cc13940 0x18cc1538c 0x18cc150ec 0x18ce0e2b8 0x18ce0dda4)

Thread 0 name: Dispatch queue: com.apple.main-thread
Thread 0:
0 libsystem_platform.dylib 0x000000018ce07e70 0x18ce06000 + 7792
1 CoreFoundation 0x000000018dc800f4 0x18dc4b000 + 217332
2 ImageIO 0x000000018fb86918 0x18f9f2000 + 1657112
3 ImageIO 0x000000018fb86460 0x18f9f2000 + 1655904
4 ImageIO 0x000000018faac010 0x18f9f2000 + 761872
5 ImageIO 0x000000018fa1871c 0x18f9f2000 + 157468
6 ImageIO 0x000000018fbb7688 0x18f9f2000 + 1857160
7 ImageIO 0x000000018fbbb8a0 0x18f9f2000 + 1874080
8 ImageIO 0x000000018fc063f0 0x18f9f2000 + 2180080
9 ImageIO 0x000000018fa1d510 0x18f9f2000 + 177424
10 ImageIO 0x000000018fa1b058 0x18f9f2000 + 168024
11 ImageIO 0x000000018fa2477c 0x18f9f2000 + 206716
12 ImageIO 0x000000018fa22708 0x18f9f2000 + 198408
13 QuartzCore 0x0000000190f96a98 0x190f7c000 + 109208
14 QuartzCore 0x0000000190f95e20 0x190f7c000 + 106016
15 QuartzCore 0x0000000190f97be8 0x190f7c000 + 113640
16 QuartzCore 0x0000000190f97e4c 0x190f7c000 + 114252
17 QuartzCore 0x0000000191087088 0x190f7c000 + 1093768
18 QuartzCore 0x00000001910037f8 0x190f7c000 + 555000
19 QuartzCore 0x000000019102ac58 0x190f7c000 + 715864
20 QuartzCore 0x000000019102b678 0x190f7c000 + 718456
21 CoreFoundation 0x000000018dd277dc 0x18dc4b000 + 903132
22 CoreFoundation 0x000000018dd2540c 0x18dc4b000 + 893964
23 CoreFoundation 0x000000018dd2589c 0x18dc4b000 + 895132
24 CoreFoundation 0x000000018dc54048 0x18dc4b000 + 36936
25 GraphicsServices 0x000000018f6da198 0x18f6ce000 + 49560
26 UIKit 0x0000000193c402fc 0x193bc5000 + 504572
27 UIKit 0x0000000193c3b034 0x193bc5000 + 483380
28 primi 0x00000001000d80d0 0x1000d0000 + 32976
29 libdyld.dylib 0x000000018cc385b8 0x18cc34000 + 17848

Thread 3 name: Dispatch queue: com.facebook.react.ExceptionsManagerQueue
Thread 3 Crashed:
0 libsystem_kernel.dylib 0x000000018cd4a014 0x18cd2b000 + 126996
1 libsystem_pthread.dylib 0x000000018ce12450 0x18ce0d000 + 21584
2 libsystem_c.dylib 0x000000018ccbe3e0 0x18cc5b000 + 406496
3 libc++abi.dylib 0x000000018c7892d4 0x18c788000 + 4820
4 libc++abi.dylib 0x000000018c7a6cc0 0x18c788000 + 126144
5 libobjc.A.dylib 0x000000018c7b4844 0x18c7ac000 + 34884
6 libc++abi.dylib 0x000000018c7a366c 0x18c788000 + 112236
7 libc++abi.dylib 0x000000018c7a2f84 0x18c788000 + 110468
8 libobjc.A.dylib 0x000000018c7b4690 0x18c7ac000 + 34448
9 primi 0x00000001001429f0 0x1000d0000 + 469488
10 primi 0x0000000100142668 0x1000d0000 + 468584
11 libdispatch.dylib 0x000000018cc05200 0x18cc04000 + 4608
12 libdispatch.dylib 0x000000018cc051c0 0x18cc04000 + 4544
13 libdispatch.dylib 0x000000018cc13444 0x18cc04000 + 62532
14 libdispatch.dylib 0x000000018cc089a8 0x18cc04000 + 18856
15 libdispatch.dylib 0x000000018cc13940 0x18cc04000 + 63808
16 libdispatch.dylib 0x000000018cc1538c 0x18cc04000 + 70540
17 libdispatch.dylib 0x000000018cc150ec 0x18cc04000 + 69868
18 libsystem_pthread.dylib 0x000000018ce0e2b8 0x18ce0d000 + 4792
19 libsystem_pthread.dylib 0x000000018ce0dda4 0x18ce0d000 + 3492

Environment

1. react-native -v: 0.46.1
2. node -v: 7.7.1
3. npm -v: 5.3.0
4. yarn --version:

Then, specify:

• Target Platform: IOS

• Development Operating System: macOS

• Build tools:

[jbcullis]

Facing the same issue. I open the app several times and it's fine and then it randomly crashes before loading the package.
Seems to be limited to iOS.
"react": "16.0.0-alpha.12",
"react-native": "0.47.2",

[hramos]

Thanks for opening the issue! It does not appear like a community member will be able to reliably reproduce this issue. This may be for several reasons; perhaps it affects a particular app but a minimal repro has not been provided, or the issue may be sporadic. As it happens, we need a concrete set of steps that can demonstrably reproduce the issue as this will allow your fellow community members to validate a fix. We'll close the issue for now, but feel free to submit a new issue once you're able to reliably reproduce the issue locally. Thanks for your understanding!

[rohitgoyal]

Getting the same issue after ungrading to iOS11 and react-native 0.48

[authiatr]

It looks like we got the same issue during the apple review.

[shgiebner21]

I am also having this issue in TestFlight with an app that has worked in Simulator and on my iPhone6 / iPad for months.
Has anyone found a solution?

[noemiekerroux]

I'm having the same issue too, is there a hero out there who can save us all ?
react-native : 0.50.3
iOS : version 11

[shgiebner21]

I have just reached out to my local tech community which is pretty strong; hoping for a response in a day or two.
I have been unable to find ANY helpful information on Apple Dev forum, google or stackoverflow.

[alenFMF]

I had exactly the same issue, the same type of a crash. It turned out to be due to use of the deprecated View.propTypes.style in one of the imported libraries. See:

#16542

By the way, you can test release builds before sending it to Testflight or Appstore in Simulator:
react-native run-ios --configuration Release

[zibs]

@im21

It's pretty obvious your error is undefined is not an object (evaluating 'console.tron.log') You cannot have tron.logs in release mode. You'll have to manually remove them from your code.

[Mactub07]

have the similar probleam , could anybody help me with detecting issue

Last Exception Backtrace:
0 CoreFoundation 0x183d67164 __exceptionPreprocess + 124
1 libobjc.A.dylib 0x182fb0528 objc_exception_throw + 55
2 CoreFoundation 0x183d670ac +[NSException raise:format:] + 115
3 yonotonApp 0x1010b624c RCTFatal + 3940940 (RCTAssert.m:134)
4 yonotonApp 0x1010a19e4 __28-[RCTCxxBridge handleError:]_block_invoke + 3856868 (RCTCxxBridge.mm:852)
5 libdispatch.dylib 0x1836e6a54 _dispatch_call_block_and_release + 23
6 libdispatch.dylib 0x1836e6a14 _dispatch_client_callout + 15
7 libdispatch.dylib 0x183727c80 _dispatch_main_queue_callback_4CF$VARIANT$armv81 + 967
8 CoreFoundation 0x183d0f344 CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE + 11
9 CoreFoundation 0x183d0cf20 __CFRunLoopRun + 2011
10 CoreFoundation 0x183c2cc58 CFRunLoopRunSpecific + 435
11 Foundation 0x184661594 -[NSRunLoop+ 50580 (NSRunLoop) runMode:beforeDate:] + 303
12 Foundation 0x1846809ac -[NSRunLoop+ 178604 (NSRunLoop) runUntilDate:] + 95
13 yonotonApp 0x101042bc0 +[SplashScreen show] + 3468224 (SplashScreen.m:23)
14 yonotonApp 0x100cfaa14 -[AppDelegate application:didFinishLaunchingWithOptions:] + 27156 (AppDelegate.m:55)
15 UIKit 0x18d3902c4 -[UIApplication _handleDelegateCallbacksWithOptions:isSuspended:restoreState:] + 383
16 UIKit 0x18d581bc4 -[UIApplication _callInitializationDelegatesForMainScene:transitionContext:] + 3435
17 UIKit 0x18d586a14 -[UIApplication _runWithMainScene:transitionContext:completion:] + 1711
18 UIKit 0x18d8222a8 __111-[__UICanvasLifecycleMonitor_Compatability _scheduleFirstCommitForScene:transition:firstActivation:completion:]_block_invoke + 799
19 UIKit 0x18dafa100 +[_UICanvas _enqueuePostSettingUpdateTransactionBlock:] + 159
20 UIKit 0x18d821f0c -[__UICanvasLifecycleMonitor_Compatability _scheduleFirstCommitForScene:transition:firstActivation:completion:] + 251
21 UIKit 0x18d82276c -[__UICanvasLifecycleMonitor_Compatability activateEventsOnly:withContext:completion:] + 731
22 UIKit 0x18dfa77c0 __82-[_UIApplicationCanvas _transitionLifecycleStateWithTransitionContext:completion:]_block_invoke + 259
23 UIKit 0x18dfa7664 -[_UIApplicationCanvas _transitionLifecycleStateWithTransitionContext:completion:] + 447
24 UIKit 0x18dd152cc __125-[_UICanvasLifecycleSettingsDiffAction performActionsForCanvas:withUpdatedScene:settingsDiff:fromSettings:transitionContext:]_block_invoke + 219
25 UIKit 0x18deae3cc _performActionsWithDelayForTransitionContext + 111
26 UIKit 0x18dd1517c -[_UICanvasLifecycleSettingsDiffAction performActionsForCanvas:withUpdatedScene:settingsDiff:fromSettings:transitionContext:] + 251
27 UIKit 0x18daf9760 -[_UICanvas scene:didUpdateWithDiff:transitionContext:completion:] + 363
28 UIKit 0x18d585158 -[UIApplication workspace:didCreateScene:withTransitionContext:completion:] + 539
29 UIKit 0x18d99adbc -[UIApplicationSceneClientAgent scene:didInitializeWithEvent:completion:] + 363
30 FrontBoardServices 0x18642a1f0 -[FBSSceneImpl _didCreateWithTransitionContext:completion:] + 363
31 FrontBoardServices 0x186432af8 __56-[FBSWorkspace client:handleCreateScene:withCompletion:]_block_invoke_2 + 223
32 libdispatch.dylib 0x1836e6a14 _dispatch_client_callout + 15
33 libdispatch.dylib 0x1837229c4 _dispatch_block_invoke_direct$VARIANT$armv81 + 279
34 FrontBoardServices 0x18645e7f8 FBSSERIALQUEUE_IS_CALLING_OUT_TO_A_BLOCK + 35
35 FrontBoardServices 0x18645e49c -[FBSSerialQueue _performNext] + 403
36 FrontBoardServices 0x18645ea38 -[FBSSerialQueue _performNextFromRunLoopSource] + 55
37 CoreFoundation 0x183d0f77c CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION + 23
38 CoreFoundation 0x183d0f6fc __CFRunLoopDoSource0 + 87
39 CoreFoundation 0x183d0ef84 __CFRunLoopDoSources0 + 203
40 CoreFoundation 0x183d0cb5c __CFRunLoopRun + 1047
41 CoreFoundation 0x183c2cc58 CFRunLoopRunSpecific + 435
42 GraphicsServices 0x185ad8f84 GSEventRunModal + 99
43 UIKit 0x18d3855c4 UIApplicationMain + 235
44 yonotonApp 0x100cfae94 main + 28308 (main.m:16)
45 libdyld.dylib 0x18374c56c start + 3

RN:0.49.5
app is crashed on launch in release mode , (apple rejected app)

[uusa35]

any solution ? facing same error

[leoabacade]

same issue: got reject while app review
"react": "16.3.1",
"react-native": "0.55.4",

Thread 5 name: Dispatch queue: com.facebook.react.ExceptionsManagerQueue
Thread 5 Crashed:
0 libsystem_kernel.dylib 0x00000001820e12ec 0x1820bf000 + 140012
1 libsystem_pthread.dylib 0x0000000182282288 0x18227f000 + 12936
2 libsystem_c.dylib 0x000000018204fd0c 0x181fed000 + 404748
3 libc++abi.dylib 0x00000001817ea2c8 0x1817e9000 + 4808
4 libc++abi.dylib 0x00000001817ea470 0x1817e9000 + 5232
5 libobjc.A.dylib 0x00000001818148d4 0x18180c000 + 35028
6 libc++abi.dylib 0x000000018180437c 0x1817e9000 + 111484
7 libc++abi.dylib 0x0000000181803ccc 0x1817e9000 + 109772
8 libobjc.A.dylib 0x0000000181814720 0x18180c000 + 34592
9 CargetherV2 0x000000010040d154 0x100378000 + 610644
10 CargetherV2 0x000000010040cc9c 0x100378000 + 609436
11 libdispatch.dylib 0x0000000181f4cb24 0x181f4b000 + 6948
12 libdispatch.dylib 0x0000000181f4cae4 0x181f4b000 + 6884
13 libdispatch.dylib 0x0000000181f56a38 0x181f4b000 + 47672
14 libdispatch.dylib 0x0000000181f57380 0x181f4b000 + 50048
15 libdispatch.dylib 0x0000000181f57d4c 0x181f4b000 + 52556
16 libdispatch.dylib 0x0000000181f6011c 0x181f4b000 + 86300
17 libsystem_pthread.dylib 0x000000018227fe70 0x18227f000 + 3696
18 libsystem_pthread.dylib 0x000000018227fb08 0x18227f000 + 2824

[Mactub07]

just a comment : I spent a lot of time to found the crash issue, but then found that crash was in Ipad and issue was with specific settings for Modal window for tablets, check your apps on ipad

[mufaawan]

For a very large project, solution found here.
https://stackoverflow.com/a/51947619/5343704