Bug: Recursive navigation example throws critical exception:

[jaygarcia]

Stack Trace: https://gist.github.com/moduscreate/7d8e93c8ce18635044c3
Demo: http://www.screencast.com/t/AJKD3erIOSe

[jaygarcia]

Still exists.

2015-03-03 08:59:03.140 UIExplorer[59212:281803] *** Assertion failure in -[RCTNavigator reactBridgeDidFinishTransaction], /www/ios/react-native/ReactKit/Views/RCTNavigator.m:508
2015-03-03 08:59:03.141 UIExplorer[59212:281803] *** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'JS has only made partial progress to catch up to UIKit'
*** First throw call stack:
(
    0   CoreFoundation                      0x0000000108979f35 __exceptionPreprocess + 165
    1   libobjc.A.dylib                     0x0000000108612bb7 objc_exception_throw + 45
    2   CoreFoundation                      0x0000000108979d9a +[NSException raise:format:arguments:] + 106
    3   Foundation                          0x000000010822f5df -[NSAssertionHandler handleFailureInMethod:object:file:lineNumber:description:] + 195
    4   UIExplorer                          0x000000010803c175 -[RCTNavigator reactBridgeDidFinishTransaction] + 1013
    5   UIExplorer                          0x000000010804a7d0 __51-[RCTUIManager uiBlockWithLayoutUpdateForRootView:]_block_invoke326 + 96
    6   UIExplorer                          0x0000000108046806 RCTTraverseViewNodes + 198
    7   UIExplorer                          0x0000000108046936 RCTTraverseViewNodes + 502
    8   UIExplorer                          0x0000000108046936 RCTTraverseViewNodes + 502
    9   UIExplorer                          0x000000010804993a __51-[RCTUIManager uiBlockWithLayoutUpdateForRootView:]_block_invoke + 5466
    10  UIExplorer                          0x000000010804724c __27-[RCTUIManager addUIBlock:]_block_invoke + 124
    11  UIExplorer                          0x0000000108050986 __32-[RCTUIManager batchDidComplete]_block_invoke_2 + 342
    12  libdispatch.dylib                   0x000000010bf25ba6 _dispatch_call_block_and_release + 12
    13  libdispatch.dylib                   0x000000010bf437f4 _dispatch_client_callout + 8
    14  libdispatch.dylib                   0x000000010bf2c8fb _dispatch_main_queue_callback_4CF + 949
    15  CoreFoundation                      0x00000001088e1fe9 __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__ + 9
    16  CoreFoundation                      0x00000001088a4eeb __CFRunLoopRun + 2043
    17  CoreFoundation                      0x00000001088a4486 CFRunLoopRunSpecific + 470
    18  GraphicsServices                    0x000000010d7279f0 GSEventRunModal + 161
    19  UIKit                               0x0000000109f21420 UIApplicationMain + 1282
    20  UIExplorer                          0x0000000107fde003 main + 115
    21  libdyld.dylib                       0x000000010bf78145 start + 1
    22  ???                                 0x0000000000000001 0x0 + 1
)
libc++abi.dylib: terminating with uncaught exception of type NSException

[vjeux]

We don't have the time to investigate it right now unfortunately. Don't expect any progress in the next couple of weeks. We're 100% focused on upgrading our infra so that we can push all the components/apis that we have before open sourcing.

[Iragne]

i add this code and it solve the issue not sure if i introduce an other bug

react-native/React/Views/RCTNavigator.m

Lines 487 to 495 in 1dba7e0

	// We can actually recover from this situation, but it would be nice to know
	// when this error happens. This simply means that JS hasn't caught up to a
	// back navigation before progressing. It's likely a bug in the JS code that
	// catches up/schedules navigations.
	if (!(jsGettingAhead ||
	jsCatchingUp ||
	jsMakingNoProgressButNeedsToCatchUp ||
	jsMakingNoProgressAndDoesntNeedTo)) {
	RCTLogError(@"JS has only made partial progress to catch up to UIKit");

BOOL jsGettingtooSlow =
  //    --- previously not caught up --------          ------- no longer caught up ----------
  viewControllerCount < previousReactCount && currentReactCount < previousReactCount;

  BOOL reactPushOne = jsGettingAhead && currentReactCount == previousReactCount + 1;
  BOOL reactPopN = jsGettingAhead && currentReactCount < previousReactCount;


  // We can actually recover from this situation, but it would be nice to know
  // when this error happens. This simply means that JS hasn't caught up to a
  // back navigation before progressing. It's likely a bug in the JS code that
  // catches up/schedules navigations.
  if (!(jsGettingAhead ||
        jsCatchingUp ||
        jsMakingNoProgressButNeedsToCatchUp ||
        jsMakingNoProgressAndDoesntNeedTo || 
        jsGettingtooSlow)) {
    RCTLogError(@"JS has only made partial progress to catch up to UIKit");
  }

Feel free to talk about it

[siuying]

@Iragne patch worked for me, but I dont sure what reactBridgeDidFinishTransaction supposed to do when its jsGettingtooSlow.

[Iragne]

yes agree with you i would like to talk to @vjeux for that as soon he has time

[soheil-zz]

+1

[brentvatne]

@vjeux @tadeuzagallo - any plans to revisit this? seems to be a popular issue to report 😄

[yanxi123-com]

+1

[Iragne]

hi every body
I create the PR #1131
May be it will be better for everybody

[Duan112358]

+1