最近升级时出现 Flutter 错误

Question

我遇到了一些奇怪的颤振错误，所以我用谷歌搜索它们，并被告知升级颤振似乎没有帮助。我没有触及任何这些文件，这是一个错误吗？不久前它运行良好。我试过颤振清洁、颤振升级、颤振医生和颤振酒吧缓存修复这是颤振医生：

[?] Android toolchain - develop for Android devices (Android SDK version 29.0.2)
[?] Android Studio (version 3.6)
[!] IntelliJ IDEA Ultimate Edition (version 2019.2)
    X Flutter plugin not installed; this adds Flutter specific functionality.
    X Dart plugin not installed; this adds Dart specific functionality.
[?] VS Code (version 1.42.1)
[?] Connected device (1 available)

! Doctor found issues in 1 category.

Compiler message:
../flutter/.pub-cache/hosted/pub.dartlang.org/flushbar-1.9.1/lib/flushbar_route.dart:273:8: Error: The method 'FlushbarRoute.install' has more required arguments than those of overridden method 'OverlayRoute.install'.
  void install(OverlayEntry insertionPoint) {
       ^
../flutter/packages/flutter/lib/src/widgets/routes.dart:40:8: Context: This is the overridden method ('install').
  void install() {
       ^

Compiler message:
../flutter/.pub-cache/hosted/pub.dartlang.org/flushbar-1.9.1/lib/flushbar_route.dart:273:8: Error: The method 'FlushbarRoute.install' has more required arguments than those of overridden method 'OverlayRoute.install'.
  void install(OverlayEntry insertionPoint) {
       ^
../flutter/packages/flutter/lib/src/widgets/routes.dart:40:8: Context: This is the overridden method ('install').
  void install() {
../flutter/.pub-cache/hosted/pub.dartlang.org/flushbar-1.9.1/lib/flushbar_route.dart:281:18: Error: Too many positional arguments: 0 allowed, but 1 found.
Try removing the extra positional arguments.
    super.install(insertionPoint);
                 ^
../flutter/.pub-cache/hosted/pub.dartlang.org/flushbar-1.9.1/lib/flushbar_route.dart:281:18: Error: Too many positional arguments: 0 allowed, but 1 found.
Try removing the extra positional arguments.
    super.install(insertionPoint);
                 ^
Target kernel_snapshot failed: Exception: Errors during snapshot creation: null
build failed.

FAILURE: Build failed with an exception.

* Where:
Script 'C:\Users\-----\Documents\Flutt\flutter\packages\flutter_tools\gradle\flutter.gradle' line: 833

* What went wrong:
Execution failed for task ':app:compileFlutterBuildDebug'.
> Process 'command 'C:\Users\-----\Documents\Flutt\flutter\bin\flutter.bat'' finished with non-zero exit value 1

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.

* Get more help at https://help.gradle.org

BUILD FAILED in 11s
Exception: Gradle task assembleDebug failed with exit code 1'''../flutter/.pub-cache/hosted/pub.dartlang.org/flushbar-1.9.1/lib/flushbar_route.dart:281:18: Error: Too many positional arguments: 0 allowed, but 1 found.
Try removing the extra positional arguments.
    super.install(insertionPoint);
                 ^
../flutter/.pub-cache/hosted/pub.dartlang.org/flushbar-1.9.1/lib/flushbar_route.dart:281:18: Error: Too many positional arguments: 0 allowed, but 1 found.
Try removing the extra positional arguments.
    super.install(insertionPoint);
                 ^
Target kernel_snapshot failed: Exception: Errors during snapshot creation: null
build failed.

FAILURE: Build failed with an exception.

* Where:
Script 'C:\Users\-----\Documents\Flutt\flutter\packages\flutter_tools\gradle\flutter.gradle' line: 833

* What went wrong:
Execution failed for task ':app:compileFlutterBuildDebug'.
> Process 'command 'C:\Users\-----\Documents\Flutt\flutter\bin\flutter.bat'' finished with non-zero exit value 1

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.

* Get more help at https://help.gradle.org

BUILD FAILED in 11s
Exception: Gradle task assembleDebug failed with exit code 1

Answer 1

在我的情况下，对 pubspec.yaml 的建议编辑导致与依赖项之一的版本冲突。我刚刚在 pubspec.yaml 的依赖项部分中添加了对稳定的旧版本flushbar 的引用

    dependencies:
        flushbar: 1.9.1