flutter lifecycle_error ai_generated true

setState() called after dispose()

ID: flutter/state-not-mounted

Also available as: JSON · Markdown
82%Fix Rate
86%Confidence
3Evidence
2023-01-01First Seen

Version Compatibility

VersionStatusIntroducedDeprecatedNotes
3 active — — —

Root Cause

setState called on disposed widget, often from async callback.

generic

Workarounds

  1. 92% success Check mounted before setState: if(mounted) setState((){})
  2. 90% success Cancel async operations in dispose(): timer?.cancel()

Dead Ends

Common approaches that don't work:

  1. Ignore the error 75% fail

    May cause inconsistent UI state

  2. Remove all async operations 85% fail

    Breaks app functionality