Null check operator used on a null value - _PdfViewerState._onSelectionHandlePanStart

[kisrar]

pdfrx: ^2.2.24

Stack trace:
Non-fatal Exception: io.flutter.plugins.firebase.crashlytics.FlutterError: Null check operator used on a null value. Error thrown .
at _PdfViewerState._onSelectionHandlePanStart(pdf_viewer.dart:2965)
at _PdfViewerState._placeTextSelectionWidgets.(pdf_viewer.dart:2698)
at DragGestureRecognizer._checkStart.(monodrag.dart:850)
at GestureRecognizer.invokeCallback(recognizer.dart:345)
at DragGestureRecognizer._checkStart(monodrag.dart:850)
at DragGestureRecognizer._checkDrag(monodrag.dart:815)
at DragGestureRecognizer.acceptGesture(monodrag.dart:743)
at GestureArenaManager._resolveByDefault(arena.dart:275)
at GestureArenaManager._tryToResolveArena.(arena.dart:255)