yjbanov/js_object_cast_error.txt

## js_object_cast_error.txt
$ felt build
Running gn...
Generating GN files in: out/host_debug_unopt
Done. Made 672 targets from 223 files in 253ms
Running ninja (with default ninja parallelization)...
ninja: Entering directory `/home/yjbanov/code/flutter/engine/src/out/host_debug_unopt'
[7/17] ACTION //flutter/web_sdk:flutter_dartdevc_kernel_sdk_sound(//build/toolchain/linux:clang_x64)
FAILED: flutter_web_sdk/kernel/amd-sound/dart_sdk.js flutter_web_sdk/kernel/amd-sound/dart_sdk.js.map
python ../../third_party/dart/build/gn_run_binary.py compiled_action /home/yjbanov/code/flutter/engine/src/third_party/dart/tools/sdks/dart-sdk/bin/dart --packages=/home/yjbanov/code/flutter/engine/src/third_party/dart/.packages --dfe=/home/yjbanov/code/flutter/engine/src/third_party/dart/tools/sdks/dart-sdk/bin/snapshots/kernel-service.dart.snapshot /home/yjbanov/code/flutter/engine/src/third_party/dart/pkg/dev_compiler/bin/dartdevc.dart --enable-experiment=non-nullable --sound-null-safety --compile-sdk dart:core dart:ui dart:_engine --no-summarize --packages file:////home/yjbanov/code/flutter/engine/src/third_party/dart/.packages --multi-root-scheme org-dartlang-sdk --multi-root file:////home/yjbanov/code/flutter/engine/src/out/host_debug_unopt --multi-root-output-path /home/yjbanov/code/flutter/engine/src/out/host_debug_unopt/ --libraries-file org-dartlang-sdk:///flutter_web_sdk/libraries.json --inline-source-map --modules amd -o /home/yjbanov/code/flutter/engine/src/out/host_debug_unopt/flutter_web_sdk/kernel/amd-sound/dart_sdk.js --modules legacy -o /home/yjbanov/code/flutter/engine/src/out/host_debug_unopt/flutter_web_sdk/kernel/legacy-sound/dart_sdk.js
Command failed: /home/yjbanov/code/flutter/engine/src/third_party/dart/tools/sdks/dart-sdk/bin/dart --packages=/home/yjbanov/code/flutter/engine/src/third_party/dart/.packages --dfe=/home/yjbanov/code/flutter/engine/src/third_party/dart/tools/sdks/dart-sdk/bin/snapshots/kernel-service.dart.snapshot /home/yjbanov/code/flutter/engine/src/third_party/dart/pkg/dev_compiler/bin/dartdevc.dart --enable-experiment=non-nullable --sound-null-safety --compile-sdk dart:core dart:ui dart:_engine --no-summarize --packages file:////home/yjbanov/code/flutter/engine/src/third_party/dart/.packages --multi-root-scheme org-dartlang-sdk --multi-root file:////home/yjbanov/code/flutter/engine/src/out/host_debug_unopt --multi-root-output-path /home/yjbanov/code/flutter/engine/src/out/host_debug_unopt/ --libraries-file org-dartlang-sdk:///flutter_web_sdk/libraries.json --inline-source-map --modules amd -o /home/yjbanov/code/flutter/engine/src/out/host_debug_unopt/flutter_web_sdk/kernel/amd-sound/dart_sdk.js --modules legacy -o /home/yjbanov/code/flutter/engine/src/out/host_debug_unopt/flutter_web_sdk/kernel/legacy-sound/dart_sdk.js
output: org-dartlang-sdk:///flutter_web_sdk/lib/_engine/engine/assets.dart:67:49: Warning: Operand of null-aware operation '!' has type 'int' which excludes null.
        throw AssetManagerException(url, target.status!);
                                                ^
org-dartlang-sdk:///flutter_web_sdk/lib/_engine/engine/bitmap_canvas.dart:367:50: Warning: Operand of null-aware operation '!' has type 'String' which excludes null.
    final String cacheKey = htmlImage.imgElement.src!;
                                                 ^
org-dartlang-sdk:///flutter_web_sdk/lib/_engine/engine/bitmap_canvas.dart:677:52: Warning: Operand of null-aware operation '!' has type 'num' which excludes null.
        x += letterSpacing + ctx.measureText(char).width!;
                                                   ^
org-dartlang-sdk:///flutter_web_sdk/lib/_engine/engine/browser_detection.dart:118:49: Warning: Operand of null-aware operation '!' has type 'String' which excludes null.
  final String platform = html.window.navigator.platform!;
                                                ^
org-dartlang-sdk:///flutter_web_sdk/lib/_engine/engine/browser_location.dart:179:36: Warning: Operand of null-aware operation '!' has type 'String' which excludes null.
  String get pathname => _location.pathname!;
                                   ^
org-dartlang-sdk:///flutter_web_sdk/lib/_engine/engine/browser_location.dart:182:34: Warning: Operand of null-aware operation '!' has type 'String' which excludes null.
  String get search => _location.search!;
                                 ^
org-dartlang-sdk:///flutter_web_sdk/lib/_engine/engine/clipboard.dart:112:35: Warning: Operand of null-aware operation '!' has type '_Clipboard' which excludes null.
 - '_Clipboard' is from 'dart:html'.
      await html.window.navigator.clipboard!.writeText(text!);
                                  ^
org-dartlang-sdk:///flutter_web_sdk/lib/_engine/engine/clipboard.dart:130:34: Warning: Operand of null-aware operation '!' has type '_Clipboard' which excludes null.
 - '_Clipboard' is from 'dart:html'.
    return html.window.navigator.clipboard!.readText();
                                 ^
org-dartlang-sdk:///flutter_web_sdk/lib/_engine/engine/compositor/path_metrics.dart:16:49: Warning: Operand of null-aware operation '!' has type 'bool' which excludes null.
  Iterator<ui.PathMetric> get iterator => _path.isEmpty! ? const CkPathMetricIteratorEmpty._() : CkContourMeasureIter(_path, _forceClosed);
                                                ^
org-dartlang-sdk:///flutter_web_sdk/lib/_engine/engine/compositor/path_metrics.dart:79:31: Error: The argument type 'JsObject?' can't be assigned to the parameter type 'SkPath'.
 - 'JsObject' is from 'dart:js'.
 - 'SkPath' is from 'dart:_engine'.
    return CkPath._fromSkPath(skPath);
                              ^
org-dartlang-sdk:///flutter_web_sdk/lib/_engine/engine/dom_renderer.dart:423:49: Warning: Operand of null-aware operation '!' has type 'int' which excludes null.
      final int initialInnerWidth = html.window.innerWidth!;
                                                ^
org-dartlang-sdk:///flutter_web_sdk/lib/_engine/engine/dom_renderer.dart:537:44: Warning: Operand of null-aware operation '!' has type 'Screen' which excludes null.
 - 'Screen' is from 'dart:html'.
    final html.Screen screen = html.window.screen!;
                                           ^
org-dartlang-sdk:///flutter_web_sdk/lib/_engine/engine/dom_renderer.dart:540:18: Warning: Operand of null-aware operation '!' has type 'ScreenOrientation' which excludes null.
 - 'ScreenOrientation' is from 'dart:html'.
          screen.orientation!;
                 ^
org-dartlang-sdk:///flutter_web_sdk/lib/_engine/engine/keyboard.dart:92:43: Warning: Operand of null-aware operation '!' has type 'String' which excludes null.
    final String timerKey = keyboardEvent.code!;
                                          ^
org-dartlang-sdk:///flutter_web_sdk/lib/_engine/engine/keyboard.dart:184:28: Warning: Operand of null-aware operation '!' has type 'String' which excludes null.
  final String key = event.key!;
                           ^
org-dartlang-sdk:///flutter_web_sdk/lib/_engine/engine/pointer_binding.dart:260:63: Warning: Operand of null-aware operation '!' has type 'num' which excludes null.
      timeStamp: _BaseAdapter._eventTimeStampToDuration(event.timeStamp!),
                                                              ^
org-dartlang-sdk:///flutter_web_sdk/lib/_engine/engine/pointer_binding.dart:266:22: Warning: Operand of null-aware operation '!' has type 'int' which excludes null.
      buttons: event.buttons!,
                     ^
org-dartlang-sdk:///flutter_web_sdk/lib/_engine/engine/pointer_binding.dart:447:32: Warning: Operand of null-aware operation '!' has type 'int' which excludes null.
      final int device = event.pointerId!;
                               ^
org-dartlang-sdk:///flutter_web_sdk/lib/_engine/engine/pointer_binding.dart:452:26: Warning: Operand of null-aware operation '!' has type 'int' which excludes null.
          buttons: event.buttons!,
                         ^
org-dartlang-sdk:///flutter_web_sdk/lib/_engine/engine/pointer_binding.dart:459:32: Warning: Operand of null-aware operation '!' has type 'int' which excludes null.
      final int device = event.pointerId!;
                               ^
org-dartlang-sdk:///flutter_web_sdk/lib/_engine/engine/pointer_binding.dart:463:97: Warning: Operand of null-aware operation '!' has type 'int' which excludes null.
        (html.PointerEvent expandedEvent) => sanitizer.sanitizeMoveEvent(buttons: expandedEvent.buttons!),
                                                                                                ^
org-dartlang-sdk:///flutter_web_sdk/lib/_engine/engine/pointer_binding.dart:472:32: Warning: Operand of null-aware operation '!' has type 'int' which excludes null.
      final int device = event.pointerId!;
                               ^
org-dartlang-sdk:///flutter_web_sdk/lib/_engine/engine/pointer_binding.dart:485:32: Warning: Operand of null-aware operation '!' has type 'int' which excludes null.
      final int device = event.pointerId!;
                               ^
org-dartlang-sdk:///flutter_web_sdk/lib/_engine/engine/pointer_binding.dart:515:70: Warning: Operand of null-aware operation '!' has type 'String' which excludes null.
    final ui.PointerDeviceKind kind = _pointerTypeToDeviceKind(event.pointerType!);
                                                                     ^
org-dartlang-sdk:///flutter_web_sdk/lib/_engine/engine/pointer_binding.dart:519:84: Warning: Operand of null-aware operation '!' has type 'int' which excludes null.
    final int device = kind == ui.PointerDeviceKind.mouse ? _mouseDeviceId : event.pointerId!;
                                                                                   ^
org-dartlang-sdk:///flutter_web_sdk/lib/_engine/engine/pointer_binding.dart:521:77: Warning: Operand of null-aware operation '!' has type 'num' which excludes null.
    final Duration timeStamp = _BaseAdapter._eventTimeStampToDuration(event.timeStamp!);
                                                                            ^
org-dartlang-sdk:///flutter_web_sdk/lib/_engine/engine/pointer_binding.dart:569:10: Warning: Operand of null-aware operation '!' has type 'int' which excludes null.
      (e.tiltX!.abs() > e.tiltY!.abs() ? e.tiltX : e.tiltY)!.toDouble() /
         ^
org-dartlang-sdk:///flutter_web_sdk/lib/_engine/engine/pointer_binding.dart:569:27: Warning: Operand of null-aware operation '!' has type 'int' which excludes null.
      (e.tiltX!.abs() > e.tiltY!.abs() ? e.tiltX : e.tiltY)!.toDouble() /
                          ^
org-dartlang-sdk:///flutter_web_sdk/lib/_engine/engine/pointer_binding.dart:569:40: Warning: Operand of null-aware operation '!' has type 'int' which excludes null.
      (e.tiltX!.abs() > e.tiltY!.abs() ? e.tiltX : e.tiltY)!.toDouble() /
                                       ^
org-dartlang-sdk:///flutter_web_sdk/lib/_engine/engine/pointer_binding.dart:599:79: Warning: Operand of null-aware operation '!' has type 'num' which excludes null.
      final Duration timeStamp = _BaseAdapter._eventTimeStampToDuration(event.timeStamp!);
                                                                              ^
org-dartlang-sdk:///flutter_web_sdk/lib/_engine/engine/pointer_binding.dart:601:38: Warning: Operand of null-aware operation '!' has type 'TouchList' which excludes null.
 - 'TouchList' is from 'dart:html'.
      for (html.Touch touch in event.changedTouches!) {
                                     ^
org-dartlang-sdk:///flutter_web_sdk/lib/_engine/engine/pointer_binding.dart:602:50: Warning: Operand of null-aware operation '!' has type 'int' which excludes null.
        final nowPressed = _isTouchPressed(touch.identifier!);
                                                 ^
org-dartlang-sdk:///flutter_web_sdk/lib/_engine/engine/pointer_binding.dart:604:29: Warning: Operand of null-aware operation '!' has type 'int' which excludes null.
          _pressTouch(touch.identifier!);
                            ^
org-dartlang-sdk:///flutter_web_sdk/lib/_engine/engine/pointer_binding.dart:619:79: Warning: Operand of null-aware operation '!' has type 'num' which excludes null.
      final Duration timeStamp = _BaseAdapter._eventTimeStampToDuration(event.timeStamp!);
                                                                              ^
org-dartlang-sdk:///flutter_web_sdk/lib/_engine/engine/pointer_binding.dart:621:38: Warning: Operand of null-aware operation '!' has type 'TouchList' which excludes null.
 - 'TouchList' is from 'dart:html'.
      for (html.Touch touch in event.changedTouches!) {
                                     ^
org-dartlang-sdk:///flutter_web_sdk/lib/_engine/engine/pointer_binding.dart:622:50: Warning: Operand of null-aware operation '!' has type 'int' which excludes null.
        final nowPressed = _isTouchPressed(touch.identifier!);
                                                 ^
org-dartlang-sdk:///flutter_web_sdk/lib/_engine/engine/pointer_binding.dart:640:79: Warning: Operand of null-aware operation '!' has type 'num' which excludes null.
      final Duration timeStamp = _BaseAdapter._eventTimeStampToDuration(event.timeStamp!);
                                                                              ^
org-dartlang-sdk:///flutter_web_sdk/lib/_engine/engine/pointer_binding.dart:642:38: Warning: Operand of null-aware operation '!' has type 'TouchList' which excludes null.
 - 'TouchList' is from 'dart:html'.
      for (html.Touch touch in event.changedTouches!) {
                                     ^
org-dartlang-sdk:///flutter_web_sdk/lib/_engine/engine/pointer_binding.dart:643:50: Warning: Operand of null-aware operation '!' has type 'int' which excludes null.
        final nowPressed = _isTouchPressed(touch.identifier!);
                                                 ^
org-dartlang-sdk:///flutter_web_sdk/lib/_engine/engine/pointer_binding.dart:645:31: Warning: Operand of null-aware operation '!' has type 'int' which excludes null.
          _unpressTouch(touch.identifier!);
                              ^
org-dartlang-sdk:///flutter_web_sdk/lib/_engine/engine/pointer_binding.dart:659:79: Warning: Operand of null-aware operation '!' has type 'num' which excludes null.
      final Duration timeStamp = _BaseAdapter._eventTimeStampToDuration(event.timeStamp!);
                                                                              ^
org-dartlang-sdk:///flutter_web_sdk/lib/_engine/engine/pointer_binding.dart:661:38: Warning: Operand of null-aware operation '!' has type 'TouchList' which excludes null.
 - 'TouchList' is from 'dart:html'.
      for (html.Touch touch in event.changedTouches!) {
                                     ^
org-dartlang-sdk:///flutter_web_sdk/lib/_engine/engine/pointer_binding.dart:662:50: Warning: Operand of null-aware operation '!' has type 'int' which excludes null.
        final nowPressed = _isTouchPressed(touch.identifier!);
                                                 ^
org-dartlang-sdk:///flutter_web_sdk/lib/_engine/engine/pointer_binding.dart:664:31: Warning: Operand of null-aware operation '!' has type 'int' which excludes null.
          _unpressTouch(touch.identifier!);
                              ^
org-dartlang-sdk:///flutter_web_sdk/lib/_engine/engine/pointer_binding.dart:691:21: Warning: Operand of null-aware operation '!' has type 'int' which excludes null.
      device: touch.identifier!,
                    ^
org-dartlang-sdk:///flutter_web_sdk/lib/_engine/engine/pointer_binding.dart:749:26: Warning: Operand of null-aware operation '!' has type 'int' which excludes null.
          buttons: event.buttons!,
                         ^
org-dartlang-sdk:///flutter_web_sdk/lib/_engine/engine/pointer_binding.dart:757:94: Warning: Operand of null-aware operation '!' has type 'int' which excludes null.
      final _SanitizedDetails sanitizedDetails = _sanitizer.sanitizeMoveEvent(buttons: event.buttons!);
                                                                                             ^
org-dartlang-sdk:///flutter_web_sdk/lib/_engine/engine/pointer_binding.dart:767:53: Warning: Operand of null-aware operation '!' has type 'int' which excludes null.
        _sanitizer.sanitizeMoveEvent(buttons: event.buttons!);
                                                    ^
org-dartlang-sdk:///flutter_web_sdk/lib/_engine/engine/pointer_binding.dart:797:63: Warning: Operand of null-aware operation '!' has type 'num' which excludes null.
      timeStamp: _BaseAdapter._eventTimeStampToDuration(event.timeStamp!),
                                                              ^
org-dartlang-sdk:///flutter_web_sdk/lib/_engine/engine/semantics/incrementable.dart:48:20: Warning: Operand of null-aware operation '!' has type 'bool' which excludes null.
      if (_element.disabled!) {
                   ^
org-dartlang-sdk:///flutter_web_sdk/lib/_engine/engine/semantics/incrementable.dart:52:52: Warning: Operand of null-aware operation '!' has type 'String' which excludes null.
      final int newInputValue = int.parse(_element.value!);
                                                   ^
org-dartlang-sdk:///flutter_web_sdk/lib/_engine/engine/semantics/incrementable.dart:87:19: Warning: Operand of null-aware operation '!' has type 'bool' which excludes null.
    if (!_element.disabled!) {
                  ^
org-dartlang-sdk:///flutter_web_sdk/lib/_engine/engine/semantics/incrementable.dart:126:18: Warning: Operand of null-aware operation '!' has type 'bool' which excludes null.
    if (_element.disabled!) {
                 ^
org-dartlang-sdk:///flutter_web_sdk/lib/_engine/engine/semantics/semantics_helper.dart:334:35: Warning: Operand of null-aware operation '!' has type 'TouchList' which excludes null.
 - 'TouchList' is from 'dart:html'.
          activationPoint = touch.changedTouches!.first.client;
                                  ^
org-dartlang-sdk:///flutter_web_sdk/lib/_engine/engine/semantics/text_field.dart:168:42: Warning: Operand of null-aware operation '!' has type 'TouchList' which excludes null.
 - 'TouchList' is from 'dart:html'.
      lastTouchStartOffsetX = touchEvent.changedTouches!.last.client.x;
                                         ^
org-dartlang-sdk:///flutter_web_sdk/lib/_engine/engine/semantics/text_field.dart:169:42: Warning: Operand of null-aware operation '!' has type 'TouchList' which excludes null.
 - 'TouchList' is from 'dart:html'.
      lastTouchStartOffsetY = touchEvent.changedTouches!.last.client.y;
                                         ^
org-dartlang-sdk:///flutter_web_sdk/lib/_engine/engine/semantics/text_field.dart:177:40: Warning: Operand of null-aware operation '!' has type 'TouchList' which excludes null.
 - 'TouchList' is from 'dart:html'.
        final num offsetX = touchEvent.changedTouches!.last.client.x;
                                       ^
org-dartlang-sdk:///flutter_web_sdk/lib/_engine/engine/semantics/text_field.dart:178:40: Warning: Operand of null-aware operation '!' has type 'TouchList' which excludes null.
 - 'TouchList' is from 'dart:html'.
        final num offsetY = touchEvent.changedTouches!.last.client.y;
                                       ^
org-dartlang-sdk:///flutter_web_sdk/lib/_engine/engine/surface/scene.dart:41:44: Warning: Operand of null-aware operation '!' has type 'int' which excludes null.
    final double screenWidth = html.window.innerWidth!.toDouble();
                                           ^
org-dartlang-sdk:///flutter_web_sdk/lib/_engine/engine/surface/scene.dart:42:45: Warning: Operand of null-aware operation '!' has type 'int' which excludes null.
    final double screenHeight = html.window.innerHeight!.toDouble();
                                            ^
org-dartlang-sdk:///flutter_web_sdk/lib/_engine/engine/surface/surface_stats.dart:93:40: Warning: Operand of null-aware operation '!' has type 'int' which excludes null.
  final int overlayWidth = html.window.innerWidth!;
                                       ^
org-dartlang-sdk:///flutter_web_sdk/lib/_engine/engine/surface/surface_stats.dart:127:19: Warning: Operand of null-aware operation '!' has type 'int' which excludes null.
      html.window.innerWidth! * EngineWindow.browserDevicePixelRatio;
                  ^
org-dartlang-sdk:///flutter_web_sdk/lib/_engine/engine/surface/surface_stats.dart:129:19: Warning: Operand of null-aware operation '!' has type 'int' which excludes null.
      html.window.innerHeight! * EngineWindow.browserDevicePixelRatio;
                  ^
org-dartlang-sdk:///flutter_web_sdk/lib/_engine/engine/surface/surface_stats.dart:298:21: Warning: Operand of null-aware operation '!' has type 'int' which excludes null.
        html.window.innerWidth! * EngineWindow.browserDevicePixelRatio;
                    ^
org-dartlang-sdk:///flutter_web_sdk/lib/_engine/engine/surface/surface_stats.dart:300:21: Warning: Operand of null-aware operation '!' has type 'int' which excludes null.
        html.window.innerHeight! * EngineWindow.browserDevicePixelRatio;
                    ^
org-dartlang-sdk:///flutter_web_sdk/lib/_engine/engine/text/font_collection.dart:97:21: Warning: Operand of null-aware operation '!' has type 'FontFaceSet' which excludes null.
 - 'FontFaceSet' is from 'dart:html'.
      html.document.fonts!.clear();
                    ^
org-dartlang-sdk:///flutter_web_sdk/lib/_engine/engine/text/font_collection.dart:181:23: Warning: Operand of null-aware operation '!' has type 'FontFaceSet' which excludes null.
 - 'FontFaceSet' is from 'dart:html'.
        html.document.fonts!.add(fontFace);
                      ^
org-dartlang-sdk:///flutter_web_sdk/lib/_engine/engine/text/font_collection.dart:198:21: Warning: Operand of null-aware operation '!' has type 'FontFaceSet' which excludes null.
 - 'FontFaceSet' is from 'dart:html'.
      html.document.fonts!.add(fontFace);
                    ^
org-dartlang-sdk:///flutter_web_sdk/lib/_engine/engine/text/font_collection.dart:312:117: Warning: Operand of null-aware operation '!' has type 'FontFaceSet' which excludes null.
 - 'FontFaceSet' is from 'dart:html'.
final bool supportsFontsClearApi = js_util.hasProperty(html.document, 'fonts') && js_util.hasProperty(html.document.fonts!, 'clear');
                                                                                                                    ^
org-dartlang-sdk:///flutter_web_sdk/lib/_engine/engine/text/measurement.dart:693:39: Warning: Operand of null-aware operation '!' has type 'num' which excludes null.
      _canvasContext.measureText(sub).width! + letterSpacing * sub.length as double;
                                      ^
org-dartlang-sdk:///flutter_web_sdk/lib/_engine/engine/window.dart:76:37: Warning: Operand of null-aware operation '!' has type 'num' which excludes null.
        windowInnerWidth = viewport.width! * devicePixelRatio as double;
                                    ^
org-dartlang-sdk:///flutter_web_sdk/lib/_engine/engine/window.dart:77:38: Warning: Operand of null-aware operation '!' has type 'num' which excludes null.
        windowInnerHeight = viewport.height! * devicePixelRatio as double;
                                     ^
org-dartlang-sdk:///flutter_web_sdk/lib/_engine/engine/window.dart:79:40: Warning: Operand of null-aware operation '!' has type 'int' which excludes null.
        windowInnerWidth = html.window.innerWidth! * devicePixelRatio;
                                       ^
org-dartlang-sdk:///flutter_web_sdk/lib/_engine/engine/window.dart:80:41: Warning: Operand of null-aware operation '!' has type 'int' which excludes null.
        windowInnerHeight = html.window.innerHeight! * devicePixelRatio;
                                        ^
org-dartlang-sdk:///flutter_web_sdk/lib/_engine/engine/window.dart:93:36: Warning: Operand of null-aware operation '!' has type 'num' which excludes null.
      windowInnerHeight = viewport.height! * devicePixelRatio as double;
                                   ^
org-dartlang-sdk:///flutter_web_sdk/lib/_engine/engine/window.dart:95:39: Warning: Operand of null-aware operation '!' has type 'int' which excludes null.
      windowInnerHeight = html.window.innerHeight! * devicePixelRatio;
                                      ^
org-dartlang-sdk:///flutter_web_sdk/lib/_engine/engine/window.dart:120:44: Warning: Operand of null-aware operation '!' has type 'num' which excludes null.
      height = html.window.visualViewport!.height! * devicePixelRatio as double;
                                           ^
org-dartlang-sdk:///flutter_web_sdk/lib/_engine/engine/window.dart:121:43: Warning: Operand of null-aware operation '!' has type 'num' which excludes null.
      width = html.window.visualViewport!.width! * devicePixelRatio as double;
                                          ^
org-dartlang-sdk:///flutter_web_sdk/lib/_engine/engine/window.dart:123:28: Warning: Operand of null-aware operation '!' has type 'int' which excludes null.
      height = html.window.innerHeight! * devicePixelRatio;
                           ^
org-dartlang-sdk:///flutter_web_sdk/lib/_engine/engine/window.dart:124:27: Warning: Operand of null-aware operation '!' has type 'int' which excludes null.
      width = html.window.innerWidth! * devicePixelRatio;
                          ^
org-dartlang-sdk:///flutter_web_sdk/lib/_engine/engine/window.dart:706:19: Warning: Operand of null-aware operation '!' has type 'bool' which excludes null.
          mqEvent.matches! ? ui.Brightness.dark : ui.Brightness.light);