': Failed assertion: line 6207 pos 12: 'child == _child': is not true.

This issue has been created since 2022-11-24.

Steps to Reproduce

  1. Execute flutter run on the code sample
  2. ...
  3. ...

Expected results:

Actual results:

Code sample
Logs
danagbemava-nc wrote this answer on 2022-11-24

Hi,
When opening an issue, please try to provide all or some of the information indicated in the template.

Issue Template
If you are looking for support, please check out our documentation
or consider asking a question on Stack Overflow:
- https://flutter.dev/
- https://api.flutter.dev/
- https://stackoverflow.com/questions/tagged/flutter?sort=frequent

If you have found a bug or if our documentation doesn't have an answer
to what you're looking for, then fill our the template below. Please read
our guide to filing a bug first: https://flutter.dev/docs/resources/bug-reports

Steps to Reproduce

Please tell us exactly how to reproduce the problem you are running into.

Please attach a small application (ideally just one main.dart file) that
reproduces the problem. You could use https://gist.github.com/ for this.

If the problem is with your application's rendering, then please attach
a screenshot and explain what the problem is.

1. ...
2. ...
3. ...


Please tell us which target platform(s) the problem occurs (Android / iOS / Web / macOS / Linux / Windows)
Which target OS version, for Web, browser, is the test system running?
Does the problem occur on emulator/simulator as well as on physical devices?

Target Platform:
Target OS version/browser:
Devices:

Run your application with `flutter run --verbose` and attach all the
log output below between the lines with the backticks. If there is an
exception, please see if the error message includes enough information
to explain how to solve the issue.

Run `flutter analyze` and attach any output of that command below.
If there are any analysis errors, try resolving them before filing this issue.

Finally, paste the output of running `flutter doctor -v` here.

Closing this issue, since no information has been provided.
Thank you.

More Details About Repo
Owner Name flutter
Repo Name flutter
Full Name flutter/flutter
Language Dart
Created Date 2015-03-06
Updated Date 2022-12-10
Star Count 147243
Watcher Count 3561
Fork Count 23950
Issue Count 11325

YOU MAY BE INTERESTED

Issue Title Created Date Comment Count Updated Date
.redirects(number) keeps waiting, doesn't resolve in v6.2.2 0 2022-01-20 2022-11-30
[Android] Are symbol tables even possible without upgrading NDK version? 10 2021-10-28 2022-12-02
VRM4U Unreal Engine 4.27 || Package Error 1 2022-11-12 2022-11-26
Psych engine crashes when I import a Yoshi engine chart. 3 2022-12-05 2022-12-01
"too many open files" error 1 2022-08-28 2022-12-03
얼마전부터 히토미 사이트 다운이 안됩니다. 2 2022-11-14 2022-12-07
[vue-3] useLoading is missing from exports 9 2021-08-23 2022-12-01
Environment vars dont get created correctly when passed in the new format 1 2020-11-24 2022-12-02
Min ada requirement - Babbage 1 2022-05-02 2022-12-07
`systeroid` does not list sub/child sections as `sysctl` does 2 2022-09-06 2022-11-09
Update to latest Node LTS 1 2022-11-01 2022-12-03
AttributeError: 'array.array' object has no attribute 'tostring' 1 2021-01-05 2022-11-27
[BUG] Can't connect to Google Cloud Account 2 2022-11-30 2022-11-30
Question: state of the art of DeepSpeech 0.9.3 0 2021-07-20 2022-12-03
How To Connect-To/Update the Database 1 2021-07-12 2022-11-29
Hey, I'am having problem with this function. It's not returning anything. 5 2021-11-05 2022-12-06
[feat request]: Pipe text from message to command 0 2021-08-18 2022-12-03
Textures are not written correctly 3 2021-11-10 2022-11-16
Switching language ROMS crash machine, when started in modes other than 7 30 2020-04-19 2022-12-07
Feature Request: Unlisted aliases without a `_` prefix 4 2022-11-22 2022-12-02
Web audit for qiskit.org/documentation 7 2022-02-15 2022-11-16
xDS integration tests hang for 15s before receiving DiscoveryResponse 1 2022-11-16 2022-12-01
remove cares DNS dependency 3 2022-10-21 2022-12-09
Terrain: Expose Gem's Components Id's 0 2022-11-28 2022-11-25
The PerformanceCollectorTest.CreatePerformanceCollector_CollectPerformance_ValidateStatisticalOutput test is flaky 0 2022-11-28 2022-11-25
Feature Request: Animation Editor: Alphabetically order the widgets registered for the view menu 1 2022-11-29 2022-12-03
nanMask call for in OpenCV core 0 2022-11-17 2022-11-30
SDM meter support for modbus flow_control_pin 4 2021-09-16 2022-11-29
"ReadableStream uploading is not supported" on POST requests in Safari 1 2021-04-14 2022-12-05
Bug on PHP 8 - socket_create & is_resource 7 2020-12-02 2022-12-06
Incumplimiento LSP class DebuggerRegionsProvider 1 2022-11-11 2022-12-09
Links cannot be consumed during redeployment of the producer 4 2019-03-06 2022-11-16
Unable to add path using home directory to ignore paths 2 2022-12-02 2022-12-02
Scheduled removal of MinIO Gateway for GCS, Azure, HDFS 50 2022-02-17 2022-12-07
Release new version? 9 2021-11-06 2022-11-16
DurableStateBehavior delete effect running in background 0 2022-11-21 2022-12-06
Source and self shows [object object] 3 2020-04-04 2022-11-28
npm run deploy --- -m failed build 5 2021-01-05 2022-12-02
Support for on-Demand Revalidation 9 2022-03-31 2022-11-19
Provider no longer publishes to registry 4 2022-06-11 2022-11-16
gprestore failed gpadmin:gpmaster:015116-[CRITICAL]:-Version string empty 2 2021-02-01 2022-11-24
Windows test app doesn't boot app 2 2021-08-24 2022-11-16
Proposal: remove automatic installation of pre-commit hooks on bootstrap 3 2021-10-07 2022-12-07
[BUG] Module not found: Error: Can't resolve 'v8' 4 2022-11-12 2022-12-03
Incorrect free space reported on web ui when using mounted mergerfs volume 6 2021-02-10 2022-12-09
Computed values within blocks that are nested within set blocks are unset by the framework 4 2022-09-14 2022-12-02
The yoga-layout-prebuilt package is unmaintained and erroring out in strict mode 0 2022-09-29 2022-11-16
How to access `this` 6 2018-06-09 2022-11-23
Add example of a custom non-record-loading loader 3 2018-07-16 2022-11-27
Compilation of 4.0.0-beta < beta 14 fail 2 2021-12-12 2022-11-27