Question

最初这段代码是正确的，但在我重新安装 Windows 及其应用程序后，正确的项目现在是一个错误。

颤动医生 -v :

[√] Flutter (Channel dev, 1.26.0-1.0.pre, on Microsoft Windows [Version 10.0.19042.804], locale en-US)
    • Flutter version 1.26.0-1.0.pre at F:\src\flutter
    • Framework revision 63062a6443 (9 weeks ago), 2020-12-13 23:19:13 +0800
    • Engine revision 4797b06652
    • Dart version 2.12.0 (build 2.12.0-141.0.dev)

[√] Android toolchain - develop for Android devices (Android SDK version 30.0.3)
    • Android SDK at F:\src\Android\Sdk
    • Platform android-30, build-tools 30.0.3
    • Java binary at: C:\Program Files\Android\Android Studio\jre\bin\java
    • Java version OpenJDK Runtime Environment (build 1.8.0_242-release-1644-b01)
    • All Android licenses accepted.

[√] Android Studio (version 4.1.0)
    • Android Studio at C:\Program Files\Android\Android Studio
    • Flutter plugin can be installed from:
       https://plugins.jetbrains.com/plugin/9212-flutter
    • Dart plugin can be installed from:
       https://plugins.jetbrains.com/plugin/6351-dart
    • Java version OpenJDK Runtime Environment (build 1.8.0_242-release-1644-b01)

[√] VS Code (version 1.53.2)
    • VS Code at C:\Users\hyda\AppData\Local\Programs\Microsoft VS Code
    • Flutter extension version 3.19.0

[√] Connected device (1 available)
    • sdk gphone x86 (mobile) • emulator-5554 • android-x86 • Android 11 (API 30) (emulator)

• No issues found!

Answer 1

你得到的错误是因为库没有加载。首先，转到 pubseck.yaml 文件并在那里获取包。如果仍然无法正常工作，请参阅此命令

-> 颤动干净 -> flutter pub get

Answer 2

这样的问题可以通过运行这个命令来解决：

flutter clean

完成后，转到 pubspec.yaml 并检查所有包是否仍然存在。要进行交叉检查，请运行：

flutter pub get

这将解决您的问题。

Visual Studio 代码中的颤振代码显示错误

2 个答案: