Error: "Commit tree already contains fiber 960. This is a bug in React DevTools."

[ATrogolo]

Describe what you were doing when the bug occurred:

1. Monitoring page load with ReactDevTool Profiler
2. Stopped the recording
3. Selected a render phase in the FlameGraph

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Please do not remove the text below this line

DevTools version: 4.10.0-11a2ae3a0d

Call stack: at updateTree (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:19650:17)
at getCommitTree (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:19583:26)
at getCommitTree (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:19576:32)
at getCommitTree (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:19576:32)
at getCommitTree (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:19576:32)
at getCommitTree (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:19576:32)
at getCommitTree (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:19576:32)
at getCommitTree (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:19576:32)
at getCommitTree (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:19576:32)
at getCommitTree (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:19576:32)

Component stack: at CommitFlamegraphAutoSizer (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:34133:50)
at div
at div
at div
at SettingsModalContextController (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:28195:3)
at Profiler_Profiler (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:35761:50)
at ErrorBoundary_ErrorBoundary (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:29208:5)
at PortaledContent (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:29325:32)
at div
at div
at ProfilerContextController (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:32923:3)
at TreeContextController (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:24311:3)
at SettingsContextController (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:24800:3)
at ModalDialogContextController (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:29393:3)
at DevTools_DevTools (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:36196:3)

[eps1lon]

I'm sorry you experienced this bug!

Looks like this problem was already reported though (#18859) so I'm going to mark this issue as a duplicate and close it. If you have additional context that might help us repro this problem, please leave a comment on the other issue!

Thank you

[bvaughn]

@ATrogolo This error remains the highest reported DevTools bug but we still don't have a repro case so that I can fix it. Do you remember how to repro the error you saw above? Can you share the steps with me if so? It would be very helpful! Thank you 🙇🏼

[ATrogolo]

Hi @bvaughn ,
I'll try to reproduce it when I'll have some spare time (tomorrow I suppose)

I'll let you know about. Almost 6 months passed since I opened this issue..

[bvaughn]

Almost 6 months passed since I opened this issue..

React DevTools only has one maintainer (me) and it's not my only job. I do the best I can to keep up with issues 😄 Ones that don't have repro steps (like this one) are really hard to fix.

[ATrogolo]

Hi @bvaughn ,
of course, I really appreciate your job to maintain the React DevTools 😉
Unfortunately I'm not able to reproduce the issue right now, I tried several times but nothing "crashed"! 😄

I'll do some experiments in the next days and I'll let you know

[bvaughn]

No problem :) Thanks!