flutter / flutter/devtools

Concurrent modification error when selecting widget in the inspector

Open
#8,971 0 comments 0 reactions 0 assignees View on GitHub
P2 screen: inspector
Dominant language
Dart
Stars
1.7k
Forks
404
Avg merge
6d 17h
Merged PRs (30d)
18

Description

flutter: [WARNING]: Concurrent modification during iteration: Instance(length:18) of '_GrowableList'.

I was seeing this when selecting a variety of widgets (Column, Row, Stack, etc.)

Contributor guide

Open the contributing guide

Research direction

No file, test, or entry point is identified. Start by reproducing the warning while selecting Column, Row, Stack, and other widgets in the inspector, then trace the concurrent iteration and confirm that widget selection no longer emits the warning.

Written by the indexing model from the issue text.

Assessment

Tech stack
dart
Domain
tooling
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

Get new issues in your inbox

A short digest of beginner-friendly GitHub issues.