我该如何解决这个问题?
颤动构建网络
具有良好零安全性的建筑
目标 dart2js 失败:异常:警告:“dart2js”入口点脚本已弃用,请使用“dart 编译 js”
反而。
/C:/Users/DELL/AppData/Local/Pub/Cache/hosted/pub.dartlang.org/flutter_screenutil-5.3.1/lib/screenutil_init.dart:23:54:
警告:空感知操作“!”的操作数具有排除 null 的“WidgetsBinding”类型。
- “WidgetsBinding”来自“package:flutter/src/widgets/binding.dart”
('/C:/flutter/packages/flutter/lib/src/widgets/binding.dart')。
数据:MediaQueryData.fromWindow(WidgetsBinding.instance!.window),
^
/C:/Users/DELL/AppData/Local/Pub/Cache/hosted/pub.dartlang.org/flutter_riverpod-1.0.3/lib/src/framework.dart:275:26:
警告:空感知操作“!”的操作数具有排除 null 的类型“SchedulerBinding”。
- “SchedulerBinding”来自“package:flutter/src/scheduler/binding.dart”
('/C:/flutter/packages/flutter/lib/src/scheduler/binding.dart')。
if (SchedulerBinding.instance!.schedulerPhase ==
^
/C:/flutter/packages/flutter/lib/src/widgets/binding.dart:419:19:
错误:参数类型“Future
- “Future”来自“dart:async”。
- “地图”来自“dart:core”。
回调:()异步{
^
/C:/flutter/packages/flutter/lib/src/widgets/binding.dart:433:19:
错误:参数类型“Future>Function()”无法分配给参数类型
'未来>函数(Map)'。
- “Future”来自“dart:async”。
- “地图”来自“dart:core”。
回调:()异步{
^
/C:/Users/DELL/AppData/Local/Pub/Cache/hosted/pub.dartlang.org/get-4.6.1/lib/get_navigation/src/extension_navigation.dart:357:24:
警告:空感知操作“!”的操作数具有排除 null 的类型“SchedulerBinding”。
- “SchedulerBinding”来自“package:flutter/src/scheduler/binding.dart”
('/C:/flutter/packages/flutter/lib/src/scheduler/binding.dart')。
SchedulerBinding.instance!.addPostFrameCallback((_) {
^
/C:/Users/DELL/AppData/Local/Pub/Cache/hosted/pub.dartlang.org/get-4.6.1/lib/get_navigation/src/extension_navigation.dart:468:24:
警告:空感知操作“!”的操作数具有排除 null 的类型“SchedulerBinding”。
- “SchedulerBinding”来自“package:flutter/src/scheduler/binding.dart”
('/C:/flutter/packages/flutter/lib/src/scheduler/binding.dart')。
SchedulerBinding.instance!.addPostFrameCallback((_) {
^
/C:/Users/DELL/AppData/Local/Pub/Cache/hosted/pub.dartlang.org/get-4.6.1/lib/get_navigation/src/snackbar/snackbar.dart:452:22:
警告:空感知操作“!”的操作数具有排除 null 的类型“SchedulerBinding”。
- “SchedulerBinding”来自“package:flutter/src/scheduler/binding.dart”
('/C:/flutter/packages/flutter/lib/src/scheduler/binding.dart')。
SchedulerBinding.instance!.addPostFrameCallback(
^
/C:/Users/DELL/AppData/Local/Pub/Cache/hosted/pub.dartlang.org/get-4.6.1/lib/get_state_manager/src/rx_flutter/rx_disposable.dart:20:22:
警告:空感知操作的操作数“?”具有排除 null 的类型“SchedulerBinding”。
- “SchedulerBinding”来自“package:flutter/src/scheduler/binding.dart”
('/C:/flutter/packages/flutter/lib/src/scheduler/binding.dart')。
SchedulerBinding.instance?.addPostFrameCallback((_) => onReady());
^
/C:/Users/DELL/AppData/Local/Pub/Cache/hosted/pub.dartlang.org/get-4.6.1/lib/get_state_manager/src/rx_flutter/rx_notifier.dart:130:22:
警告:空感知操作的操作数“?”具有排除 null 的类型“SchedulerBinding”。
- “SchedulerBinding”来自“package:flutter/src/scheduler/binding.dart”
('/C:/flutter/packages/flutter/lib/src/scheduler/binding.dart')。
SchedulerBinding.instance?.addPostFrameCallback((_) => onReady());
^
/C:/Users/DELL/AppData/Local/Pub/Cache/hosted/pub.dartlang.org/get-4.6.1/lib/get_state_manager/src/simple/get_controllers.dart:90:20:
警告:空感知操作“!”的操作数具有排除 null 的“WidgetsBinding”类型。
- “WidgetsBinding”来自“package:flutter/src/widgets/binding.dart”
('/C:/flutter/packages/flutter/lib/src/widgets/binding.dart')。
WidgetsBinding.instance!.addObserver(this);
^
/C:/Users/DELL/AppData/Local/Pub/Cache/hosted/pub.dartlang.org/get-4.6.1/lib/get_state_manager/src/simple/get_controllers.dart:96:20:
警告:空感知操作“!”的操作数具有排除 null 的“WidgetsBinding”类型。
- “WidgetsBinding”来自“package:flutter/src/widgets/binding.dart”
('/C:/flutter/packages/flutter/lib/src/widgets/binding.dart')。
WidgetsBinding.instance!.removeObserver(this);
^
/C:/Users/DELL/AppData/Local/Pub/Cache/hosted/pub.dartlang.org/get-4.6.1/lib/get_navigation/src/router_report.dart:53:22:
警告:空感知操作“!”的操作数具有排除 null 的“WidgetsBinding”类型。
- “WidgetsBinding”来自“package:flutter/src/widgets/binding.dart”
('/C:/flutter/packages/flutter/lib/src/widgets/binding.dart')。
WidgetsBinding.instance!.addPostFrameCallback((_) {
^
/C:/Users/DELL/AppData/Local/Pub/Cache/hosted/pub.dartlang.org/cached_network_image-3.2.0/lib/src/image_provider/cached_network_image_provider.dart:109:29:
警告:空感知操作的操作数“?”具有排除 null 的“PaintingBinding”类型。
- “PaintingBinding”来自“package:flutter/src/painting/binding.dart”
('/C:/flutter/packages/flutter/lib/src/painting/binding.dart')。
() => PaintingBinding.instance?.imageCache?.evict(key),
^
/C:/Users/DELL/AppData/Local/Pub/Cache/hosted/pub.dartlang.org/cached_network_image-3.2.0/lib/src/image_provider/multi_image_stream_completer.dart:152:22:
警告:空感知操作的操作数“?”具有排除 null 的类型“SchedulerBinding”。
- “SchedulerBinding”来自“package:flutter/src/scheduler/binding.dart”
('/C:/flutter/packages/flutter/lib/src/scheduler/binding.dart')。
SchedulerBinding.instance?.scheduleFrameCallback(_handleAppFrame);
^
/C:/Users/DELL/AppData/Local/Pub/Cache/hosted/pub.dartlang.org/material_floating_search_bar-0.3.6/lib/src/util/util.dart:18:18:
警告:空感知操作的操作数“?”具有排除 null 的“WidgetsBinding”类型。
- “WidgetsBinding”来自“package:flutter/src/widgets/binding.dart”
('/C:/flutter/packages/flutter/lib/src/widgets/binding.dart')。
WidgetsBinding.instance?.addPostFrameCallback((_) => 回调());
^
错误:编译失败。
为 Web 编译 lib\main.dart...24.2s
异常:无法编译 Web 应用程序。
我遇到了此类问题,但它为我解决了
flutter run -d chrome --web-hostname localhost --web-port 5000
尝试运行此命令。
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