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_debugUltimatePreviousSiblingOf(after, equals : _firstChild)': is not true #14971

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ybmeng opened this issue Feb 28, 2018 · 3 comments
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_debugUltimatePreviousSiblingOf(after, equals : _firstChild)': is not true #14971

ybmeng opened this issue Feb 28, 2018 · 3 comments

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@ybmeng
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ybmeng commented Feb 28, 2018

Steps to Reproduce

Logs

══╡ EXCEPTION CAUGHT BY WIDGETS LIBRARY ╞═══════════════════════════════════════════════════════════
I/flutter ( 5983): The following assertion was thrown building NotificationListener:
I/flutter ( 5983): 'package:flutter/src/rendering/object.dart': Failed assertion: line 2730:
I/flutter ( 5983): '_debugUltimatePreviousSiblingOf(after, equals : _firstChild)': is not true.
I/flutter ( 5983):
I/flutter ( 5983): Either the assertion indicates an error in the framework itself, or we should provide substantially
I/flutter ( 5983): more information in this error message to help you determine and fix the underlying cause.
I/flutter ( 5983): In either case, please report this assertion by filing a bug on GitHub:
I/flutter ( 5983): https://github.com/flutter/flutter/issues/new
I/flutter ( 5983):
I/flutter ( 5983): When the exception was thrown, this was the stack:
I/flutter ( 5983): #2 RenderSliver&ContainerRenderObjectMixin._insertIntoChildList (package:flutter/src/rendering/object.dart:2730)
I/flutter ( 5983): #3 RenderSliver&ContainerRenderObjectMixin.insert (package:flutter/src/rendering/object.dart:2764)
I/flutter ( 5983): #4 RenderSliverMultiBoxAdaptor.insert (package:flutter/src/rendering/sliver_multi_box_adaptor.dart:209)
I/flutter ( 5983): #5 SliverMultiBoxAdaptorElement.insertChildRenderObject (package:flutter/src/widgets/sliver.dart:849)
I/flutter ( 5983): #6 RenderObjectElement.attachRenderObject (package:flutter/src/widgets/framework.dart:4470)
I/flutter ( 5983): #7 RenderObjectElement.mount (package:flutter/src/widgets/framework.dart:4240)
I/flutter ( 5983): #8 SingleChildRenderObjectElement.mount (package:flutter/src/widgets/framework.dart:4610)
I/flutter ( 5983): #9 Element.inflateWidget (package:flutter/src/widgets/framework.dart:2890)
I/flutter ( 5983): #10 Element.updateChild (package:flutter/src/widgets/framework.dart:2693)
I/flutter ( 5983): #11 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3636)
I/flutter ( 5983): #12 Element.rebuild (package:flutter/src/widgets/framework.dart:3478)
I/flutter ( 5983): #13 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:3605)
I/flutter ( 5983): #14 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3600)
I/flutter ( 5983): #15 Element.inflateWidget (package:flutter/src/widgets/framework.dart:2890)
I/flutter ( 5983): #16 Element.updateChild (package:flutter/src/widgets/framework.dart:2693)
I/flutter ( 5983): #17 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3636)
I/flutter ( 5983): #18 Element.rebuild (package:flutter/src/widgets/framework.dart:3478)
I/flutter ( 5983): #19 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:3605)
I/flutter ( 5983): #20 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3600)
I/flutter ( 5983): #21 ParentDataElement.mount (package:flutter/src/widgets/framework.dart:3916)
I/flutter ( 5983): #22 Element.inflateWidget (package:flutter/src/widgets/framework.dart:2890)
I/flutter ( 5983): #23 Element.updateChild (package:flutter/src/widgets/framework.dart:2693)
I/flutter ( 5983): #24 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3636)
I/flutter ( 5983): #25 Element.rebuild (package:flutter/src/widgets/framework.dart:3478)
I/flutter ( 5983): #26 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:3605)
I/flutter ( 5983): #27 StatefulElement._firstBuild (package:flutter/src/widgets/framework.dart:3741)
I/flutter ( 5983): #28 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3600)
I/flutter ( 5983): #29 Element.inflateWidget (package:flutter/src/widgets/framework.dart:2890)
I/flutter ( 5983): #30 Element.updateChild (package:flutter/src/widgets/framework.dart:2693)
I/flutter ( 5983): #31 SliverMultiBoxAdaptorElement.performRebuild (package:flutter/src/widgets/sliver.dart:702)
I/flutter ( 5983): #32 SliverMultiBoxAdaptorElement.update (package:flutter/src/widgets/sliver.dart:671)
I/flutter ( 5983): #33 Element.updateChild (package:flutter/src/widgets/framework.dart:2682)
I/flutter ( 5983): #34 SingleChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:4618)
I/flutter ( 5983): #35 Element.updateChild (package:flutter/src/widgets/framework.dart:2682)
I/flutter ( 5983): #36 RenderObjectElement.updateChildren (package:flutter/src/widgets/framework.dart:4340)
I/flutter ( 5983): #37 MultiChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:4726)
I/flutter ( 5983): #38 _ViewportElement.update (package:flutter/src/widgets/viewport.dart:187)
I/flutter ( 5983): #39 Element.updateChild (package:flutter/src/widgets/framework.dart:2682)
I/flutter ( 5983): #40 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3636)
I/flutter ( 5983): #41 Element.rebuild (package:flutter/src/widgets/framework.dart:3478)
I/flutter ( 5983): #42 ProxyElement.update (package:flutter/src/widgets/framework.dart:3870)
I/flutter ( 5983): #43 Element.updateChild (package:flutter/src/widgets/framework.dart:2682)
I/flutter ( 5983): #44 SingleChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:4618)
I/flutter ( 5983): #45 Element.updateChild (package:flutter/src/widgets/framework.dart:2682)
I/flutter ( 5983): #46 SingleChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:4618)
I/flutter ( 5983): #47 Element.updateChild (package:flutter/src/widgets/framework.dart:2682)
I/flutter ( 5983): #48 SingleChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:4618)
I/flutter ( 5983): #49 Element.updateChild (package:flutter/src/widgets/framework.dart:2682)
I/flutter ( 5983): #50 SingleChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:4618)
I/flutter ( 5983): #51 Element.updateChild (package:flutter/src/widgets/framework.dart:2682)
I/flutter ( 5983): #52 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3636)
I/flutter ( 5983): #53 Element.rebuild (package:flutter/src/widgets/framework.dart:3478)
I/flutter ( 5983): #54 StatefulElement.update (package:flutter/src/widgets/framework.dart:3760)
I/flutter ( 5983): #55 Element.updateChild (package:flutter/src/widgets/framework.dart:2682)
I/flutter ( 5983): #56 SingleChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:4618)
I/flutter ( 5983): #57 Element.updateChild (package:flutter/src/widgets/framework.dart:2682)
I/flutter ( 5983): #58 SingleChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:4618)
I/flutter ( 5983): #59 Element.updateChild (package:flutter/src/widgets/framework.dart:2682)
I/flutter ( 5983): #60 SingleChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:4618)
I/flutter ( 5983): #61 Element.updateChild (package:flutter/src/widgets/framework.dart:2682)
I/flutter ( 5983): #62 SingleChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:4618)
I/flutter ( 5983): #63 Element.updateChild (package:flutter/src/widgets/framework.dart:2682)
I/flutter ( 5983): #64 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3636)
I/flutter ( 5983): #65 Element.rebuild (package:flutter/src/widgets/framework.dart:3478)
I/flutter ( 5983): #66 StatelessElement.update (package:flutter/src/widgets/framework.dart:3685)
I/flutter ( 5983): #67 Element.updateChild (package:flutter/src/widgets/framework.dart:2682)
I/flutter ( 5983): #68 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3636)
I/flutter ( 5983): #69 Element.rebuild (package:flutter/src/widgets/framework.dart:3478)
I/flutter ( 5983): #70 StatefulElement.update (package:flutter/src/widgets/framework.dart:3760)
I/flutter ( 5983): #71 Element.updateChild (package:flutter/src/widgets/framework.dart:2682)
I/flutter ( 5983): #72 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3636)
I/flutter ( 5983): #73 Element.rebuild (package:flutter/src/widgets/framework.dart:3478)
I/flutter ( 5983): #74 StatefulElement.update (package:flutter/src/widgets/framework.dart:3760)
I/flutter ( 5983): #75 Element.updateChild (package:flutter/src/widgets/framework.dart:2682)
I/flutter ( 5983): #76 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3636)
I/flutter ( 5983): #77 Element.rebuild (package:flutter/src/widgets/framework.dart:3478)
I/flutter ( 5983): #78 StatelessElement.update (package:flutter/src/widgets/framework.dart:3685)
I/flutter ( 5983): #79 Element.updateChild (package:flutter/src/widgets/framework.dart:2682)
I/flutter ( 5983): #80 SingleChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:4618)
I/flutter ( 5983): #81 Element.updateChild (package:flutter/src/widgets/framework.dart:2682)
I/flutter ( 5983): #82 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3636)
I/flutter ( 5983): #83 Element.rebuild (package:flutter/src/widgets/framework.dart:3478)
I/flutter ( 5983): #84 ProxyElement.update (package:flutter/src/widgets/framework.dart:3870)
I/flutter ( 5983): #85 Element.updateChild (package:flutter/src/widgets/framework.dart:2682)
I/flutter ( 5983): #86 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3636)
I/flutter ( 5983): #87 Element.rebuild (package:flutter/src/widgets/framework.dart:3478)
I/flutter ( 5983): #88 ProxyElement.update (package:flutter/src/widgets/framework.dart:3870)
I/flutter ( 5983): #89 Element.updateChild (package:flutter/src/widgets/framework.dart:2682)
I/flutter ( 5983): #90 RenderObjectElement.updateChildren (package:flutter/src/widgets/framework.dart:4340)
I/flutter ( 5983): #91 MultiChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:4726)
I/flutter ( 5983): #92 Element.updateChild (package:flutter/src/widgets/framework.dart:2682)
I/flutter ( 5983): #93 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3636)
I/flutter ( 5983): #94 Element.rebuild (package:flutter/src/widgets/framework.dart:3478)
I/flutter ( 5983): #95 ProxyElement.update (package:flutter/src/widgets/framework.dart:3870)
I/flutter ( 5983): #96 Element.updateChild (package:flutter/src/widgets/framework.dart:2682)
I/flutter ( 5983): #97 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3636)
I/flutter ( 5983): #98 Element.rebuild (package:flutter/src/widgets/framework.dart:3478)
I/flutter ( 5983): #99 StatefulElement.update (package:flutter/src/widgets/framework.dart:3760)
I/flutter ( 5983): #100 Element.updateChild (package:flutter/src/widgets/framework.dart:2682)
I/flutter ( 5983): #101 SingleChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:4618)
I/flutter ( 5983): #102 Element.updateChild (package:flutter/src/widgets/framework.dart:2682)
I/flutter ( 5983): #103 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3636)
I/flutter ( 5983): #104 Element.rebuild (package:flutter/src/widgets/framework.dart:3478)
I/flutter ( 5983): #105 StatelessElement.update (package:flutter/src/widgets/framework.dart:3685)
I/flutter ( 5983): #106 Element.updateChild (package:flutter/src/widgets/framework.dart:2682)
I/flutter ( 5983): #107 SingleChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:4618)
I/flutter ( 5983): #108 Element.updateChild (package:flutter/src/widgets/framework.dart:2682)
I/flutter ( 5983): #109 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3636)
I/flutter ( 5983): #110 Element.rebuild (package:flutter/src/widgets/framework.dart:3478)
I/flutter ( 5983): #111 StatefulElement.update (package:flutter/src/widgets/framework.dart:3760)
I/flutter ( 5983): #112 Element.updateChild (package:flutter/src/widgets/framework.dart:2682)
I/flutter ( 5983): #113 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3636)
I/flutter ( 5983): #114 Element.rebuild (package:flutter/src/widgets/framework.dart:3478)
I/flutter ( 5983): #115 StatefulElement.update (package:flutter/src/widgets/framework.dart:3760)
I/flutter ( 5983): #116 Element.updateChild (package:flutter/src/widgets/framework.dart:2682)
I/flutter ( 5983): #117 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3636)
I/flutter ( 5983): #118 Element.rebuild (package:flutter/src/widgets/framework.dart:3478)
I/flutter ( 5983): #119 ProxyElement.update (package:flutter/src/widgets/framework.dart:3870)
I/flutter ( 5983): #120 Element.updateChild (package:flutter/src/widgets/framework.dart:2682)
I/flutter ( 5983): #121 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3636)
I/flutter ( 5983): #122 Element.rebuild (package:flutter/src/widgets/framework.dart:3478)
I/flutter ( 5983): #123 ProxyElement.update (package:flutter/src/widgets/framework.dart:3870)
I/flutter ( 5983): #124 Element.updateChild (package:flutter/src/widgets/framework.dart:2682)
I/flutter ( 5983): #125 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3636)
I/flutter ( 5983): #126 Element.rebuild (package:flutter/src/widgets/framework.dart:3478)
I/flutter ( 5983): #127 StatefulElement.update (package:flutter/src/widgets/framework.dart:3760)
I/flutter ( 5983): #128 Element.updateChild (package:flutter/src/widgets/framework.dart:2682)
I/flutter ( 5983): #129 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3636)
I/flutter ( 5983): #130 Element.rebuild (package:flutter/src/widgets/framework.dart:3478)
I/flutter ( 5983): #131 BuildOwner.buildScope (package:flutter/src/widgets/framework.dart:2225)
I/flutter ( 5983): #132 BindingBase&GestureBinding&ServicesBinding&SchedulerBinding&PaintingBinding&RendererBinding&WidgetsBinding.drawFrame (package:flutter/src/widgets/binding.dart:621)
I/flutter ( 5983): #133 BindingBase&GestureBinding&ServicesBinding&SchedulerBinding&PaintingBinding&RendererBinding._handlePersistentFrameCallback (package:flutter/src/rendering/binding.dart:208)
I/flutter ( 5983): #134 BindingBase&GestureBinding&ServicesBinding&SchedulerBinding._invokeFrameCallback (package:flutter/src/scheduler/binding.dart:990)
I/flutter ( 5983): #135 BindingBase&GestureBinding&ServicesBinding&SchedulerBinding.handleDrawFrame (package:flutter/src/scheduler/binding.dart:930)
I/flutter ( 5983): #136 BindingBase&GestureBinding&ServicesBinding&SchedulerBinding._handleDrawFrame (package:flutter/src/scheduler/binding.dart:842)
I/flutter ( 5983): #137 _invoke (file:///b/build/slave/Linux_Engine/build/src/flutter/lib/ui/hooks.dart:120)
I/flutter ( 5983): #138 _drawFrame (file:///b/build/slave/Linux_Engine/build/src/flutter/lib/ui/hooks.dart:109)
I/flutter ( 5983): (elided 2 frames from class _AssertionError)
I/flutter ( 5983): ════════════════════════════════════════════════════════════════════════════════════════════════════
I/flutter ( 5983): Another exception was thrown: 'package:flutter/src/rendering/object.dart': Failed assertion: line 2730: '_debugUltimatePreviousSiblingOf(after, equals : _firstChild)': is not true.
I/chatty ( 5983): uid=10071(u0_a71) ui_thread identical 1 line
I/flutter ( 5983): Another exception was thrown: 'package:flutter/src/rendering/object.dart': Failed assertion: line 2730: '_debugUltimatePreviousSiblingOf(after, equals : _firstChild)': is not true.
I/flutter ( 5983): Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 3480: 'owner._debugCurrentBuildTarget == this': is not true.
I/chatty ( 5983): uid=10071(u0_a71) ui_thread identical 15 lines
I/flutter ( 5983): Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 3480: 'owner._debugCurrentBuildTarget == this': is not true.
I/flutter ( 5983): Another exception was thrown: type 'RenderErrorBox' is not a subtype of type 'RenderSemanticsGestureHandler' of 'semanticsGestureHandler' where
@ybmeng
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ybmeng commented Feb 28, 2018

Code snippet:

onExpansionChanged: (isExpanded) {
// Keep element alive if it's expanded.
if (isExpanded) {
new KeepAliveNotification(_keepAliveHandle = new KeepAliveHandle()).dispatch(context);
} else if (_keepAliveHandle != null) {
_keepAliveHandle.release();
_keepAliveHandle.dispose();
_keepAliveHandle = null;
}
}, // onExpansionChanged.

@ybmeng
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ybmeng commented Feb 28, 2018

Nvm, I need to do more debugging. I'm adding to a list and rerendering, and that breaks the notification.

@ybmeng ybmeng closed this as completed Feb 28, 2018
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github-actions bot commented Sep 3, 2021

This thread has been automatically locked since there has not been any recent activity after it was closed. If you are still experiencing a similar issue, please open a new bug, including the output of flutter doctor -v and a minimal reproduction of the issue.

@github-actions github-actions bot locked as resolved and limited conversation to collaborators Sep 3, 2021
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