facebook/react · error · Error

138

138

Error message

Touch object is missing identifier.

What it means

Error "Touch object is missing identifier." thrown in facebook/react.

Source

Thrown at packages/react-native-renderer/src/legacy-events/ResponderTouchHistoryStore.js:96

  };
}

function resetTouchRecord(touchRecord: TouchRecord, touch: Touch): void {
  touchRecord.touchActive = true;
  touchRecord.startPageX = touch.pageX;
  touchRecord.startPageY = touch.pageY;
  touchRecord.startTimeStamp = timestampForTouch(touch);
  touchRecord.currentPageX = touch.pageX;
  touchRecord.currentPageY = touch.pageY;
  touchRecord.currentTimeStamp = timestampForTouch(touch);
  touchRecord.previousPageX = touch.pageX;
  touchRecord.previousPageY = touch.pageY;
  touchRecord.previousTimeStamp = timestampForTouch(touch);
}

function getTouchIdentifier({identifier}: Touch): number {
  if (identifier == null) {
    throw new Error('Touch object is missing identifier.');
  }

  if (__DEV__) {
    if (identifier > MAX_TOUCH_BANK) {
      console.error(
        'Touch identifier %s is greater than maximum supported %s which causes ' +
          'performance issues backfilling array locations for all of the indices.',
        identifier,
        MAX_TOUCH_BANK,
      );
    }
  }
  return identifier;
}

function recordTouchStart(touch: Touch): void {
  const identifier = getTouchIdentifier(touch);
  const touchRecord = touchBank[identifier];

View on GitHub (pinned to eafeac097b)

When it happens

Trigger: Thrown at packages/react-native-renderer/src/legacy-events/ResponderTouchHistoryStore.js:96 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of facebook/react@eafeac097b (2026-08-21). Data as JSON: /api/errors/627044406c530c90. Report an issue: GitHub.