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[DevTools Bug] Commit tree already contains fiber "288". This is a bug in React DevTools. | GoodFirstPicks

[DevTools Bug] Commit tree already contains fiber "288". This is a bug in React DevTools.

facebook/react 0 comments 10d ago
View on GitHub
mediumopenScope: somewhat clearSkill match: maybeReactJavaScriptTypeScript

Why this is a good first issue

DevTools fiber tree error requires React internals knowledge

AI Summary

The issue reports a React DevTools error about duplicate fiber IDs during component rendering. While the error is reproducible, it requires understanding React's fiber tree implementation and DevTools integration. The core problem is clear but the solution may touch internal React mechanisms.

Issue Description

Website or app

Private repo (project on Tanstack Start)

Repro steps

1- I was on a page and clicked a link that took me to CreatLoanForm 2 - There's a lot of bars shown on the profiler i picked one of the hightest ones 3 - The error was thrown

This is the code: import { CurrencyInput, DataModuleFormProps, DateInput, Form, FormContainer, FormGroup, FormMasterDetailLayout, FormRow, FormWatch, NumericInput, PaymentFrequencySelect, PercentageInput, RichTextEditor, Tab, TabPanel, Tabs, TabsList, } from '@/components' import { useLoanForm } from '../hooks/useLoanForm' import { LoanOfficerSearchInput, ProfileSearchInput } from '@/features/profiles' import LoanProjectionCard from './loan-projection-card' import { Loan } from '../models/loan' import { LoanFormValues } from '../lib/schemas/loanFormSchema' import LoanAmortizationPreview from './loan-amortization-preview' import { Project } from '@/features/projects'

interface CreateLoanFormProps extends DataModuleFormProps< Loan, LoanFormValues

{ project: Project }

const CreateLoanForm = (props: CreateLoanFormProps) => { const form = useLoanForm(props)

console.log('will i rerender because of subscribtions?')

return ( Datos Amortización

    </TabPanel>
    <TabPanel index={1} unmountOnExit>
      
    </TabPanel>
  </Tabs>
</FormContainer>

) }

export default CreateLoanForm

How often does this bug happen?

Every time

DevTools package (automated)

react-devtools-extensions

DevTools version (automated)

7.0.1-3cde211b0c

Error message (automated)

Commit tree already contains fiber "288". This is a bug in React DevTools.

Error call stack (automated)

at updateTree (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js

GitHub Labels

Type: BugStatus: UnconfirmedComponent: Developer Tools

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Risk Flags

  • requires React DevTools expertise
  • fiber tree internals
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Details

Points20 pts
Difficultymedium
Scopesomewhat clear
Skill Matchmaybe
Test Focusedno