[ERROR:flutter/lib/ui/ui_dart_state.cc(177)] Unhandled Exception: Null check operator used on a null value
E/flutter (17451): #0 _AndroidMotionEventConverter.toAndroidMotionEvent. (package:flutter/src/services/platform_views.dart:601:73)
E/flutter (17451): #1 MappedListIterable.elementAt (dart:_internal/iterable.dart:417:31)
E/flutter (17451): #2 ListIterator.moveNext (dart:_internal/iterable.dart:343:26)
E/flutter (17451): #3 new List.from (dart:core-patch/array_patch.dart:38:29)
E/flutter (17451): #4 new List.of (dart:core-patch/array_patch.dart:68:17)
E/flutter (17451): #5 ListIterable.toList (dart:_internal/iterable.dart:211:44)
E/flutter (17451): #6 _AndroidMotionEventConverter.toAndroidMotionEvent (package:flutter/src/services/platform_views.dart:602:12)
E/flutter (17451): #7 AndroidViewController.dispatchPointerEvent (package:flutter/src/services/platform_views.dart:864:31)
E/flutter (17451): #8 List.forEach (dart:core-patch/growable_array.dart:313:8)
E/flutter (17451): #9 _PlatformViewGestureRecognizer._flushPointerCache (package:flutter/src/rendering/platform_view.dart:560:35)
E/flutter (17451): #10 _PlatformViewGestureRecognizer.acceptGesture (package:flutter/src/rendering/platform_view.dart:542:5)
E/flutter (17451): #11 _CombiningGestureArenaMember.acceptGesture (package:flutter/src/gestures/team.dart:42:14)
E/flutter (17451): #12 GestureArenaManager._resolveByDefault (package:flutter/src/gestures/arena.dart:251:25)
E/flutter (17451): #13 GestureArenaManager._tryToResolveArena. (package:flutter/src/gestures/arena.dart:232:31)