Rapid switching with AnimatedSwitcher leads to duplicate keys #121336
Description
Issue
When using an AnimatedSwitcher to switch rapidly between widgets with different keys, it is possible to have two widgets with the same key end up in the _outgoingWidgets and thus in the internal Stack, leading it to throw an exception, as seen in the Logs below (along with messing up the layout).
Consider the scenario of having widgets A and B, with String ValueKey's of "A" and "B" respectively.
(If both widgets are of the same type, keys need to be set on them to force a transition to occur.)
The simplest form of this issue is then described by:
- The
AnimatedSwitcher's_currentEntryis an instance of widget A (A1) - An instance of widget B gets switched in (B1)
a) A1 is added to the_outgoingEntriesand its animation reversed, animating it out
b) B1 is made the_currentEntryand its animation driven forward, animating it in - An instance of widget A gets switched in (A2)
a) B1 is added to the_outgoingEntriesand its animation reversed, animating it out
b) A2 is made the_currentEntryand its animation driven forward, animating it in
c) A1 is filtered out when passing the_outgoingEntriesto thelayoutBuilder(as per #107476), as it has the same key as the_currentEntryA2 ("A")
d) Only A2 and B1 end up in the internal stack, so no exception is thrown - An instance of widget B gets switched in (B2)
a) A2 is added to the_outgoingEntriesand its animation reversed, animating it out (notice that the_outgoingEntriesnow contain both A1 and A2)
b) B1's animation may possibly already be dismissed and thus removed from the_outgoingEntries(as its animation was reversed almost from the start in 3., as opposed to A1'a animation, which was reversed from the very end in 2., taking it longer to dismiss), which should not change the behavior of the bug though
c) B2 is made the_currentEntryand its animation driven forward, animating it in
d) B1 (if still in the_outgoingEntries) is filtered out when passing them to thelayoutBuilder, as it has the same key as the_currentEntryB2 ("B")
e) Neither A1 nor A2 are filtered out when passing the_outgoingEntriesto thelayoutBuilder, as they have a different key then the_currentEntry("A"vs."B")
f) Both A1, A2 and B2 end up in the internal stack, leading to the duplicate key"A"and thus the exception (see Logs)
As this bug requires rapid switching to occur, it is triggered easiest, when switching between only two different widgets.
However the bug should in theory not be limited by the number of different widgets (or rather different keys) being switched.
Steps to Reproduce
- Execute
flutter runon the code sample
2.a) Either manually switch theAnimatedSwitcher's child rapidly by pressing on the "Switch manually" button (at least three times)
2.b) Or press on the "Trigger bug" button to automatically let the child be switched fast enough to trigger the bug
Expected results:
Either (using the naming from the example in Issue):
Seeing both A1 and A2 still animating out while B2 is animated in.
This would require the AnimatedSwitcher to use its already available _childNumber (which currently only gets used when no key is set on the widgets) to create a new combined key, which is unambiguous for all the children of the AnimatedSwitcher.
This would solve the issue of duplicate keys on the internal stack.
Maybe this could look something like this:
class _ChildKey extends LocalKey {
_ChildKey(this.childKey, this.childNumber);
final Key? childKey;
final int childNumber;
@override
bool operator ==(Object other) {
return other is _ChildKey &&
other.childKey == childKey &&
other.childNumber == childNumber;
}
@override
int get hashCode => Object.hash(runtimeType, childKey, childNumber);
}Note: This is the way the AnimatedSwitcher should actually behave according to its documentation:
The same key can be used for a new child as was used for an already-outgoing child; the two will not be considered related.
OR:
Seeing only A2 animate out while B2 is animated in
This would require the AnimatedSwitcher, upon recieving a widget with a key set, to remove all other widgets in its _outgoingEntries, that have the same key.
This would also solve the issue of duplicate keys on the internal stack, albeit not necessarily as nicely as the first option.
Note: This is the way the AnimatedSwitcher currently behaves according to this discussion on the pull request fixing a related problem.
Actual results:
The internal stack throws an exception upon recieving two children with the same key.
The exact exception can be seen in the Logs.
Additionally the layout of the stack gets messed up.
Code sample
import 'dart:async';
import 'package:flutter/material.dart';
void main() {
runApp(const AnimatedSwitcherBug());
}
/// A very simple app demonstrating a bug in the AnimatedSwitcher.
class AnimatedSwitcherBug extends StatefulWidget {
const AnimatedSwitcherBug({super.key});
@override
State<AnimatedSwitcherBug> createState() => AnimatedSwitcherBugState();
}
class AnimatedSwitcherBugState extends State<AnimatedSwitcherBug> {
String text = 'A';
late int count;
Timer? timer;
@override
Widget build(BuildContext context) {
return MaterialApp(
home: Scaffold(
body: Center(
child: Column(
mainAxisSize: MainAxisSize.min,
children: [
AnimatedSwitcher(
duration: const Duration(milliseconds: 500),
child: Text(
text,
key: ValueKey<String>(text),
style: Theme.of(context).textTheme.headlineLarge,
),
),
TextButton(
child: const Text(
'Switch manually',
),
onPressed: () {
setState(() {
text = text == 'A' ? 'B' : 'A';
});
},
),
TextButton(
child: const Text(
'Trigger bug',
),
onPressed: () {
setState(() {
count = 3;
timer = Timer.periodic(
const Duration(milliseconds: 200),
(_) => setState(() {
text = text == 'A' ? 'B' : 'A';
count--;
if (count == 0) {
timer?.cancel();
}
}),
);
});
},
),
],
),
),
),
);
}
}Logs
══╡ EXCEPTION CAUGHT BY WIDGETS LIBRARY ╞═══════════════════════════════════════════════════════════
The following assertion was thrown building AnimatedSwitcher(duration: 500ms, state:
_AnimatedSwitcherState#9ae97(tickers: tracking 3 tickers)):
Duplicate keys found.
If multiple keyed widgets exist as children of another widget, they must have unique keys.
Stack(alignment: Alignment.center, fit: loose) has multiple children with key [<[<[<'A'>]>]>].
The relevant error-causing widget was:
AnimatedSwitcher
AnimatedSwitcher:file:///home/jim/Developer/animated_switcher_bug/lib/main.dart:32:15
When the exception was thrown, this was the stack:
#0 debugChildrenHaveDuplicateKeys.<anonymous closure> (package:flutter/src/widgets/debug.dart:210:7)
#1 debugChildrenHaveDuplicateKeys (package:flutter/src/widgets/debug.dart:217:4)
#2 MultiChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:6536:13)
#3 Element.updateChild (package:flutter/src/widgets/framework.dart:3660:15)
#4 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4993:16)
#5 StatefulElement.performRebuild (package:flutter/src/widgets/framework.dart:5133:11)
#6 Element.rebuild (package:flutter/src/widgets/framework.dart:4690:5)
#7 StatefulElement.update (package:flutter/src/widgets/framework.dart:5156:5)
#8 Element.updateChild (package:flutter/src/widgets/framework.dart:3660:15)
#9 RenderObjectElement.updateChildren (package:flutter/src/widgets/framework.dart:5981:32)
#10 MultiChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:6537:17)
#11 Element.updateChild (package:flutter/src/widgets/framework.dart:3660:15)
#12 SingleChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:6384:14)
#13 Element.updateChild (package:flutter/src/widgets/framework.dart:3660:15)
#14 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4993:16)
#15 Element.rebuild (package:flutter/src/widgets/framework.dart:4690:5)
#16 StatelessElement.update (package:flutter/src/widgets/framework.dart:5044:5)
#17 Element.updateChild (package:flutter/src/widgets/framework.dart:3660:15)
#18 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4993:16)
#19 Element.rebuild (package:flutter/src/widgets/framework.dart:4690:5)
#20 StatelessElement.update (package:flutter/src/widgets/framework.dart:5044:5)
#21 Element.updateChild (package:flutter/src/widgets/framework.dart:3660:15)
#22 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4993:16)
#23 Element.rebuild (package:flutter/src/widgets/framework.dart:4690:5)
#24 ProxyElement.update (package:flutter/src/widgets/framework.dart:5301:5)
#25 Element.updateChild (package:flutter/src/widgets/framework.dart:3660:15)
#26 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4993:16)
#27 Element.rebuild (package:flutter/src/widgets/framework.dart:4690:5)
#28 ProxyElement.update (package:flutter/src/widgets/framework.dart:5301:5)
#29 Element.updateChild (package:flutter/src/widgets/framework.dart:3660:15)
#30 RenderObjectElement.updateChildren (package:flutter/src/widgets/framework.dart:5981:32)
#31 MultiChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:6537:17)
#32 Element.updateChild (package:flutter/src/widgets/framework.dart:3660:15)
#33 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4993:16)
#34 Element.rebuild (package:flutter/src/widgets/framework.dart:4690:5)
#35 ProxyElement.update (package:flutter/src/widgets/framework.dart:5301:5)
#36 Element.updateChild (package:flutter/src/widgets/framework.dart:3660:15)
#37 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4993:16)
#38 StatefulElement.performRebuild (package:flutter/src/widgets/framework.dart:5133:11)
#39 Element.rebuild (package:flutter/src/widgets/framework.dart:4690:5)
#40 StatefulElement.update (package:flutter/src/widgets/framework.dart:5156:5)
#41 Element.updateChild (package:flutter/src/widgets/framework.dart:3660:15)
#42 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4993:16)
#43 StatefulElement.performRebuild (package:flutter/src/widgets/framework.dart:5133:11)
#44 Element.rebuild (package:flutter/src/widgets/framework.dart:4690:5)
#45 StatefulElement.update (package:flutter/src/widgets/framework.dart:5156:5)
#46 Element.updateChild (package:flutter/src/widgets/framework.dart:3660:15)
#47 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4993:16)
#48 Element.rebuild (package:flutter/src/widgets/framework.dart:4690:5)
#49 ProxyElement.update (package:flutter/src/widgets/framework.dart:5301:5)
#50 Element.updateChild (package:flutter/src/widgets/framework.dart:3660:15)
#51 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4993:16)
#52 StatefulElement.performRebuild (package:flutter/src/widgets/framework.dart:5133:11)
#53 Element.rebuild (package:flutter/src/widgets/framework.dart:4690:5)
#54 StatefulElement.update (package:flutter/src/widgets/framework.dart:5156:5)
#55 Element.updateChild (package:flutter/src/widgets/framework.dart:3660:15)
#56 SingleChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:6384:14)
#57 Element.updateChild (package:flutter/src/widgets/framework.dart:3660:15)
#58 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4993:16)
#59 Element.rebuild (package:flutter/src/widgets/framework.dart:4690:5)
#60 ProxyElement.update (package:flutter/src/widgets/framework.dart:5301:5)
#61 Element.updateChild (package:flutter/src/widgets/framework.dart:3660:15)
#62 SingleChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:6384:14)
#63 Element.updateChild (package:flutter/src/widgets/framework.dart:3660:15)
#64 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4993:16)
#65 StatefulElement.performRebuild (package:flutter/src/widgets/framework.dart:5133:11)
#66 Element.rebuild (package:flutter/src/widgets/framework.dart:4690:5)
#67 StatefulElement.update (package:flutter/src/widgets/framework.dart:5156:5)
#68 Element.updateChild (package:flutter/src/widgets/framework.dart:3660:15)
#69 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4993:16)
#70 StatefulElement.performRebuild (package:flutter/src/widgets/framework.dart:5133:11)
#71 Element.rebuild (package:flutter/src/widgets/framework.dart:4690:5)
#72 StatefulElement.update (package:flutter/src/widgets/framework.dart:5156:5)
#73 Element.updateChild (package:flutter/src/widgets/framework.dart:3660:15)
#74 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4993:16)
#75 Element.rebuild (package:flutter/src/widgets/framework.dart:4690:5)
#76 ProxyElement.update (package:flutter/src/widgets/framework.dart:5301:5)
#77 Element.updateChild (package:flutter/src/widgets/framework.dart:3660:15)
#78 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4993:16)
#79 Element.rebuild (package:flutter/src/widgets/framework.dart:4690:5)
#80 ProxyElement.update (package:flutter/src/widgets/framework.dart:5301:5)
#81 Element.updateChild (package:flutter/src/widgets/framework.dart:3660:15)
#82 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4993:16)
#83 Element.rebuild (package:flutter/src/widgets/framework.dart:4690:5)
#84 ProxyElement.update (package:flutter/src/widgets/framework.dart:5301:5)
#85 Element.updateChild (package:flutter/src/widgets/framework.dart:3660:15)
#86 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4993:16)
#87 StatefulElement.performRebuild (package:flutter/src/widgets/framework.dart:5133:11)
#88 Element.rebuild (package:flutter/src/widgets/framework.dart:4690:5)
#89 StatefulElement.update (package:flutter/src/widgets/framework.dart:5156:5)
#90 Element.updateChild (package:flutter/src/widgets/framework.dart:3660:15)
#91 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4993:16)
#92 Element.rebuild (package:flutter/src/widgets/framework.dart:4690:5)
#93 ProxyElement.update (package:flutter/src/widgets/framework.dart:5301:5)
#94 Element.updateChild (package:flutter/src/widgets/framework.dart:3660:15)
#95 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4993:16)
#96 StatefulElement.performRebuild (package:flutter/src/widgets/framework.dart:5133:11)
#97 Element.rebuild (package:flutter/src/widgets/framework.dart:4690:5)
#98 StatefulElement.update (package:flutter/src/widgets/framework.dart:5156:5)
#99 Element.updateChild (package:flutter/src/widgets/framework.dart:3660:15)
#100 SingleChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:6384:14)
#101 Element.updateChild (package:flutter/src/widgets/framework.dart:3660:15)
#102 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4993:16)
#103 Element.rebuild (package:flutter/src/widgets/framework.dart:4690:5)
#104 StatelessElement.update (package:flutter/src/widgets/framework.dart:5044:5)
#105 Element.updateChild (package:flutter/src/widgets/framework.dart:3660:15)
#106 SingleChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:6384:14)
#107 Element.updateChild (package:flutter/src/widgets/framework.dart:3660:15)
#108 SingleChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:6384:14)
#109 Element.updateChild (package:flutter/src/widgets/framework.dart:3660:15)
#110 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4993:16)
#111 StatefulElement.performRebuild (package:flutter/src/widgets/framework.dart:5133:11)
#112 Element.rebuild (package:flutter/src/widgets/framework.dart:4690:5)
#113 StatefulElement.update (package:flutter/src/widgets/framework.dart:5156:5)
#114 Element.updateChild (package:flutter/src/widgets/framework.dart:3660:15)
#115 SingleChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:6384:14)
#116 Element.updateChild (package:flutter/src/widgets/framework.dart:3660:15)
#117 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4993:16)
#118 StatefulElement.performRebuild (package:flutter/src/widgets/framework.dart:5133:11)
#119 Element.rebuild (package:flutter/src/widgets/framework.dart:4690:5)
#120 StatefulElement.update (package:flutter/src/widgets/framework.dart:5156:5)
#121 Element.updateChild (package:flutter/src/widgets/framework.dart:3660:15)
#122 SingleChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:6384:14)
#123 Element.updateChild (package:flutter/src/widgets/framework.dart:3660:15)
#124 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4993:16)
#125 StatefulElement.performRebuild (package:flutter/src/widgets/framework.dart:5133:11)
#126 Element.rebuild (package:flutter/src/widgets/framework.dart:4690:5)
#127 StatefulElement.update (package:flutter/src/widgets/framework.dart:5156:5)
#128 Element.updateChild (package:flutter/src/widgets/framework.dart:3660:15)
#129 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4993:16)
#130 StatefulElement.performRebuild (package:flutter/src/widgets/framework.dart:5133:11)
#131 Element.rebuild (package:flutter/src/widgets/framework.dart:4690:5)
#132 StatefulElement.update (package:flutter/src/widgets/framework.dart:5156:5)
#133 Element.updateChild (package:flutter/src/widgets/framework.dart:3660:15)
#134 SingleChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:6384:14)
#135 Element.updateChild (package:flutter/src/widgets/framework.dart:3660:15)
#136 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4993:16)
#137 StatefulElement.performRebuild (package:flutter/src/widgets/framework.dart:5133:11)
#138 Element.rebuild (package:flutter/src/widgets/framework.dart:4690:5)
#139 StatefulElement.update (package:flutter/src/widgets/framework.dart:5156:5)
#140 Element.updateChild (package:flutter/src/widgets/framework.dart:3660:15)
#141 SingleChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:6384:14)
#142 Element.updateChild (package:flutter/src/widgets/framework.dart:3660:15)
#143 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4993:16)
#144 StatefulElement.performRebuild (package:flutter/src/widgets/framework.dart:5133:11)
#145 Element.rebuild (package:flutter/src/widgets/framework.dart:4690:5)
#146 StatefulElement.update (package:flutter/src/widgets/framework.dart:5156:5)
#147 Element.updateChild (package:flutter/src/widgets/framework.dart:3660:15)
#148 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4993:16)
#149 StatefulElement.performRebuild (package:flutter/src/widgets/framework.dart:5133:11)
#150 Element.rebuild (package:flutter/src/widgets/framework.dart:4690:5)
#151 StatefulElement.update (package:flutter/src/widgets/framework.dart:5156:5)
#152 Element.updateChild (package:flutter/src/widgets/framework.dart:3660:15)
#153 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4993:16)
#154 Element.rebuild (package:flutter/src/widgets/framework.dart:4690:5)
#155 StatelessElement.update (package:flutter/src/widgets/framework.dart:5044:5)
#156 Element.updateChild (package:flutter/src/widgets/framework.dart:3660:15)
#157 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4993:16)
#158 StatefulElement.performRebuild (package:flutter/src/widgets/framework.dart:5133:11)
#159 Element.rebuild (package:flutter/src/widgets/framework.dart:4690:5)
#160 StatefulElement.update (package:flutter/src/widgets/framework.dart:5156:5)
#161 Element.updateChild (package:flutter/src/widgets/framework.dart:3660:15)
#162 SingleChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:6384:14)
#163 Element.updateChild (package:flutter/src/widgets/framework.dart:3660:15)
#164 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4993:16)
#165 Element.rebuild (package:flutter/src/widgets/framework.dart:4690:5)
#166 ProxyElement.update (package:flutter/src/widgets/framework.dart:5301:5)
#167 _InheritedNotifierElement.update (package:flutter/src/widgets/inherited_notifier.dart:107:11)
#168 Element.updateChild (package:flutter/src/widgets/framework.dart:3660:15)
#169 SingleChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:6384:14)
#170 Element.updateChild (package:flutter/src/widgets/framework.dart:3660:15)
#171 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4993:16)
#172 StatefulElement.performRebuild (package:flutter/src/widgets/framework.dart:5133:11)
#173 Element.rebuild (package:flutter/src/widgets/framework.dart:4690:5)
#174 StatefulElement.update (package:flutter/src/widgets/framework.dart:5156:5)
#175 Element.updateChild (package:flutter/src/widgets/framework.dart:3660:15)
#176 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4993:16)
#177 Element.rebuild (package:flutter/src/widgets/framework.dart:4690:5)
#178 ProxyElement.update (package:flutter/src/widgets/framework.dart:5301:5)
#179 Element.updateChild (package:flutter/src/widgets/framework.dart:3660:15)
#180 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4993:16)
#181 Element.rebuild (package:flutter/src/widgets/framework.dart:4690:5)
#182 ProxyElement.update (package:flutter/src/widgets/framework.dart:5301:5)
#183 Element.updateChild (package:flutter/src/widgets/framework.dart:3660:15)
#184 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4993:16)
#185 StatefulElement.performRebuild (package:flutter/src/widgets/framework.dart:5133:11)
#186 Element.rebuild (package:flutter/src/widgets/framework.dart:4690:5)
#187 StatefulElement.update (package:flutter/src/widgets/framework.dart:5156:5)
#188 Element.updateChild (package:flutter/src/widgets/framework.dart:3660:15)
#189 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4993:16)
#190 Element.rebuild (package:flutter/src/widgets/framework.dart:4690:5)
#191 StatelessElement.update (package:flutter/src/widgets/framework.dart:5044:5)
#192 Element.updateChild (package:flutter/src/widgets/framework.dart:3660:15)
#193 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4993:16)
#194 Element.rebuild (package:flutter/src/widgets/framework.dart:4690:5)
#195 StatelessElement.update (package:flutter/src/widgets/framework.dart:5044:5)
#196 Element.updateChild (package:flutter/src/widgets/framework.dart:3660:15)
#197 SingleChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:6384:14)
#198 Element.updateChild (package:flutter/src/widgets/framework.dart:3660:15)
#199 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4993:16)
#200 Element.rebuild (package:flutter/src/widgets/framework.dart:4690:5)
#201 ProxyElement.update (package:flutter/src/widgets/framework.dart:5301:5)
#202 Element.updateChild (package:flutter/src/widgets/framework.dart:3660:15)
#203 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4993:16)
#204 Element.rebuild (package:flutter/src/widgets/framework.dart:4690:5)
#205 ProxyElement.update (package:flutter/src/widgets/framework.dart:5301:5)
#206 Element.updateChild (package:flutter/src/widgets/framework.dart:3660:15)
#207 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4993:16)
#208 StatefulElement.performRebuild (package:flutter/src/widgets/framework.dart:5133:11)
#209 Element.rebuild (package:flutter/src/widgets/framework.dart:4690:5)
#210 StatefulElement.update (package:flutter/src/widgets/framework.dart:5156:5)
#211 Element.updateChild (package:flutter/src/widgets/framework.dart:3660:15)
#212 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4993:16)
#213 StatefulElement.performRebuild (package:flutter/src/widgets/framework.dart:5133:11)
#214 Element.rebuild (package:flutter/src/widgets/framework.dart:4690:5)
#215 StatefulElement.update (package:flutter/src/widgets/framework.dart:5156:5)
#216 Element.updateChild (package:flutter/src/widgets/framework.dart:3660:15)
#217 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4993:16)
#218 StatefulElement.performRebuild (package:flutter/src/widgets/framework.dart:5133:11)
#219 Element.rebuild (package:flutter/src/widgets/framework.dart:4690:5)
#220 BuildOwner.buildScope (package:flutter/src/widgets/framework.dart:2743:19)
#221 WidgetsBinding.drawFrame (package:flutter/src/widgets/binding.dart:863:21)
#222 RendererBinding._handlePersistentFrameCallback (package:flutter/src/rendering/binding.dart:381:5)
#223 SchedulerBinding._invokeFrameCallback (package:flutter/src/scheduler/binding.dart:1289:15)
#224 SchedulerBinding.handleDrawFrame (package:flutter/src/scheduler/binding.dart:1218:9)
#225 SchedulerBinding._handleDrawFrame (package:flutter/src/scheduler/binding.dart:1076:5)
#226 _invoke (dart:ui/hooks.dart:145:13)
#227 PlatformDispatcher._drawFrame (dart:ui/platform_dispatcher.dart:338:5)
#228 _drawFrame (dart:ui/hooks.dart:112:31)
════════════════════════════════════════════════════════════════════════════════════════════════════
Another exception was thrown: A RenderFlex overflowed by 99359 pixels on the bottom.
Analyzing animated_switcher_bug...
No issues found! (ran in 0.5s)
[✓] Flutter (Channel stable, 3.7.5, on Ubuntu 22.04.1 LTS 5.19.0-32-generic, locale en_US.UTF-8)
• Flutter version 3.7.5 on channel stable at /home/jim/opt/flutter
• Upstream repository https://github.com/flutter/flutter.git
• Framework revision c07f788888 (13 hours ago), 2023-02-22 17:52:33 -0600
• Engine revision 0f359063c4
• Dart version 2.19.2
• DevTools version 2.20.1
[!] Android toolchain - develop for Android devices (Android SDK version 30.0.3)
• Android SDK at /home/jim/Android/Sdk
✗ cmdline-tools component is missing
Run `path/to/sdkmanager --install "cmdline-tools;latest"`
See https://developer.android.com/studio/command-line for more details.
✗ Android license status unknown.
Run `flutter doctor --android-licenses` to accept the SDK licenses.
See https://flutter.dev/docs/get-started/install/linux#android-setup for more details.
[✓] Chrome - develop for the web
• Chrome at google-chrome
[✓] Linux toolchain - develop for Linux desktop
• Ubuntu clang version 14.0.0-1ubuntu1
• cmake version 3.22.1
• ninja version 1.10.1
• pkg-config version 0.29.2
[✓] Android Studio (version 2020.3)
• Android Studio at /home/jim/Developer/android-studio
• Flutter plugin version 63.2.1
• Dart plugin version 203.8452
• Java version OpenJDK Runtime Environment (build 11.0.10+0-b96-7249189)
[✓] Connected device (3 available)
• IN2013 (mobile) • 1ed663a2 • android-arm64 • Android 12 (API 31)
• Linux (desktop) • linux • linux-x64 • Ubuntu 22.04.1 LTS 5.19.0-32-generic
• Chrome (web) • chrome • web-javascript • Google Chrome 108.0.5359.98
[✓] HTTP Host Availability
• All required HTTP hosts are available
! Doctor found issues in 1 category.