我这点击运行全是错误

Question

/C:/flutter_windows_3.24.4-stable/flutter/packages/flutter/lib/src/material/animated_icons.dart:9:8: Error: Dart library 'dart:ui' is not available on this platform.
import 'dart:ui' as ui show Canvas, Paint, Path, lerpDouble;
       ^
Context: The unavailable library 'dart:ui' is imported through these packages:

    package:flutter_11 => package:flutter => dart:ui
    ...

Detailed import paths for (some of) the these imports:

    package:flutter_11/main.dart => package:flutter/material.dart => package:flutter/src/material/about.dart => package:flutter/foundation.dart => package:flutter/src/foundation/assertions.dart => package:flutter/src/foundation/diagnostics.dart => dart:ui
    package:flutter_11/main.dart => package:flutter/material.dart => package:flutter/src/material/about.dart => package:flutter/foundation.dart => package:flutter/src/foundation/assertions.dart => package:flutter/src/foundation/diagnostics.dart => package:flutter/src/foundation/debug.dart => dart:ui
    package:flutter_11/main.dart => package:flutter/material.dart => package:flutter/src/material/about.dart => package:flutter/foundation.dart => package:flutter/src/foundation/binding.dart => dart:ui
    package:flutter_11/main.dart => package:flutter/material.dart => package:flutter/src/material/about.dart => package:flutter/foundation.dart => package:flutter/src/foundation/binding.dart => package:flutter/src/foundation/assertions.dart => package:flutter/src/foundation/diagnostics.dart => dart:ui
    package:flutter_11/main.dart => package:flutter/material.dart => package:flutter/src/material/about.dart => package:flutter/foundation.dart => package:flutter/src/foundation/binding.dart => package:flutter/src/foundation/assertions.dart => package:flutter/src/foundation/diagnostics.dart => package:flutter/src/foundation/debug.dart => dart:ui
    package:flutter_11/main.dart => package:flutter/material.dart => package:flutter/src/material/about.dart => package:flutter/foundation.dart => package:flutter/src/foundation/binding.dart => package:flutter/src/foundation/debug.dart => dart:ui
    package:flutter_11/main.dart => package:flutter/material.dart => package:flutter/src/material/about.dart => package:flutter/foundation.dart => package:flutter/src/foundation/change_notifier.dart => dart:ui
    package:flutter_11/main.dart => package:flutter/material.dart => package:flutter/src/material/about.dart => package:flutter/foundation.dart => package:flutter/src/foundation/change_notifier.dart => package:flutter/src/foundation/assertions.dart => package:flutter/src/foundation/diagnostics.dart => dart:ui
    package:flutter_11/main.dart => package:flutter/material.dart => package:flutter/src/material/about.dart => package:flutter/foundation.dart => package:flutter/src/foundation/change_notifier.dart => package:flutter/src/foundation/assertions.dart => package:flutter/src/foundation/diagnostics.dart => package:flutter/src/foundation/debug.dart => dart:ui
    package:flutter_11/main.dart => package:flutter/material.dart => package:flutter/src/material/about.dart => package:flutter/foundation.dart => package:flutter/src/foundation/change_notifier.dart => package:flutter/src/foundation/diagnostics.dart => dart:ui
    package:flutter_11/main.dart => package:flutter/material.dart => package:flutter/src/material/about.dart => package:flutter/foundation.dart => package:flutter/src/foundation/change_notifier.dart => package:flutter/src/foundation/diagnostics.dart => package:flutter/src/foundation/debug.dart => dart:ui
    package:flutter_11/main.dart => package:flutter/material.dart => package:flutter/src/material/about.dart => package:flutter/foundation.dart => package:flutter/src/foundation/change_notifier.dart => package:flutter/src/foundation/memory_allocations.dart => dart:ui
    package:flutter_11/main.dart => package:flutter/material.dart => package:flutter/src/material/about.dart => package:flutter/foundation.dart => package:flutter/src/foundation/change_notifier.dart => package:flutter/src/foundation/memory_allocations.dart => package:flutter/src/foundation/assertions.dart => package:flutter/src/foundation/diagnostics.dart => dart:ui
    package:flutter_11/main.dart => package:flutter/material.dart => package:flutter/src/material/about.dart => package:flutter/foundation.dart => package:flutter/src/foundation/change_notifier.dart => package:flutter/src/foundation/memory_allocations.dart => package:flutter/src/foundation/assertions.dart => package:flutter/src/foundation/diagnostics.dart => package:flutter/src/foundation/debug.dart => dart:ui
    package:flutter_11/main.dart => package:flutter/material.dart => package:flutter/src/material/about.dart => package:flutter/foundation.dart => package:flutter/src/foundation/change_notifier.dart => package:flutter/src/foundation/memory_allocations.dart => package:flutter/src/foundation/diagnostics.dart => dart:ui
    package:flutter_11/main.dart => package:flutter/material.dart => package:flutter/src/material/about.dart => package:flutter/foundation.dart => package:flutter/src/foundation/change_notifier.dart => package:flutter/src/foundation/memory_allocations.dart => package:flutter/src/foundation/diagnostics.dart => package:flutter/src/foundation/debug.dart => dart:ui
    package:flutter_11/main.dart => package:flutter/material.dart => package:flutter/src/material/about.dart => package:flutter/foundation.dart => package:flutter/src/foundation/debug.dart => dart:ui
    package:flutter_11/main.dart => package:flutter/material.dart => package:flutter/src/material/about.dart => package:flutter/foundation.dart => package:flutter/src/foundation/diagnostics.dart => dart:ui
    package:flutter_11/main.dart => package:flutter/material.dart => package:flutter/src/material/about.dart => package:flutter/foundation.dart => package:flutter/src/foundation/diagnostics.dart => package:flutter/src/foundation/debug.dart => dart:ui
    package:flutter_11/main.dart => package:flutter/material.dart => package:flutter/src/material/about.dart => package:flutter/foundation.dart => package:flutter/src/foundation/key.dart => package:flutter/src/foundation/diagnostics.dart => dart:ui
    package:flutter_11/main.dart => package:flutter/material.dart => package:flutter/src/material/about.dart => package:flutter/foundation.dart => package:flutter/src/foundation/key.dart => package:flutter/src/foundation/diagnostics.dart => package:flutter/src/foundation/debug.dart => dart:ui
    ...

/C:/flutter_windows_3.24.4-stable/flutter/packages/flutter/lib/src/material/app.dart:5:8: Error: Dart library 'dart:ui' is not available on this platform.
import 'dart:ui' as ui;
       ^
/C:/flutter_windows_3.24.4-stable/flutter/packages/flutter/lib/src/material/app_bar_theme.dart:5:8: Error: Dart library 'dart:ui' is not available on this platform.
import 'dart:ui' show lerpDouble;
       ^
/C:/flutter_windows_3.24.4-stable/flutter/packages/flutter/lib/src/material/arc.dart:6:8: Error: Dart library 'dart:ui' is not available on this platform.
import 'dart:ui' show lerpDouble;
       ^
/C:/flutter_windows_3.24.4-stable/flutter/packages/flutter/lib/src/material/badge_theme.dart:5:8: Error: Dart library 'dart:ui' is not available on this platform.
import 'dart:ui' show lerpDouble;
       ^
/C:/flutter_windows_3.24.4-stable/flutter/packages/flutter/lib/src/material/banner_theme.dart:5:8: Error: Dart library 'dart:ui' is not available on this platform.
import 'dart:ui' show lerpDouble;
       ^
/C:/flutter_windows_3.24.4-stable/flutter/packages/flutter/lib/src/material/bottom_app_bar_theme.dart:5:8: Error: Dart library 'dart:ui' is not available on this platform.
import 'dart:ui' show lerpDouble;
       ^
/C:/flutter_windows_3.24.4-stable/flutter/packages/flutter/lib/src/material/bottom_navigation_bar_theme.dart:5:8: Error: Dart library 'dart:ui' is not available on this platform.
import 'dart:ui' show lerpDouble;
       ^
/C:/flutter_windows_3.24.4-stable/flutter/packages/flutter/lib/src/material/bottom_sheet_theme.dart:5:8: Error: Dart library 'dart:ui' is not available on this platform.
import 'dart:ui' show lerpDouble;
       ^

Answer 1

CrazyCodeBoy 2024-11-15 00:02:46

新建一个flutter项目然后运行试试看是不是项目运行的问题

Answer 2

CrazyCodeBoy 2024-11-13 22:25:59

用flutter doctor检查下环境是否有配置成功

• 提问者 热爱编程学习 #1

  Doctor summary (to see all details, run flutter doctor -v):
  [√] Flutter (Channel stable, 3.24.4, on Microsoft Windows [版本 10.0.19045.4529], locale zh-CN)
  [√] Windows Version (Installed version of Windows is version 10 or higher)
  [!] Android toolchain - develop for Android devices (Android SDK version 29.0.3)
      X cmdline-tools component is missing
        Run `path/to/sdkmanager --install "cmdline-tools;latest"`
        See https://developer.android.com/studio/command-line for more details.
      X Android license status unknown.
        Run `flutter doctor --android-licenses` to accept the SDK licenses.
        See https://flutter.dev/to/windows-android-setup for more details.
  [√] Chrome - develop for the web
  [X] Visual Studio - develop Windows apps
      X Visual Studio not installed; this is necessary to develop Windows apps.
        Download at https://visualstudio.microsoft.com/downloads/.
        Please install the "Desktop development with C++" workload, including all of its default components
  [√] Android Studio (version 2024.2)
  [√] Connected device (3 available)
  [!] Network resources
      X A network error occurred while checking "https://maven.google.com/": 信号灯超时时间已到