在 Android Studio 中构建文件时出现颤振错误

Posted 2023-02-23

【中文标题】在 Android Studio 中构建文件时出现颤振错误

【英文标题】：Flutter error on building files in Android Studio

【发布时间】：2020-08-23 01:36:00

【问题描述】：

我在 android Studio 上新安装了 Flutter。我有一个颤振的源代码，我想用它打开它。我安装了最新的颤振插件和颤振 SDK。但是当我尝试运行该应用程序时，它会显示以下错误：

Compiler message:
/C:/Flutter%20SDK/flutter/.pub-cache/hosted/pub.dartlang.org/flutter_svg-0.14.4/lib/src/picture_stream.dart:92:3: Error: The superclass, 'Diagnosticable', has no unnamed constructor that takes no arguments.
  PictureStream();
  ^^^^^^^^^^^^^
/C:/Flutter%20SDK/flutter/.pub-cache/hosted/pub.dartlang.org/flutter_svg-0.14.4/lib/src/picture_stream.dart:192:16: Error: The superclass, 'Diagnosticable', has no unnamed constructor that takes no arguments.
abstract class PictureStreamCompleter extends Diagnosticable 
               ^

Compiler message:
/C:/Flutter%20SDK/flutter/.pub-cache/hosted/pub.dartlang.org/flutter_svg-0.14.4/lib/src/picture_stream.dart:92:3: Error: The superclass, 'Diagnosticable', has no unnamed constructor that takes no arguments.
  PictureStream();
  ^^^^^^^^^^^^^
/C:/Flutter%20SDK/flutter/.pub-cache/hosted/pub.dartlang.org/flutter_svg-0.14.4/lib/src/picture_stream.dart:192:16: Error: The superclass, 'Diagnosticable', has no unnamed constructor that takes no arguments.
abstract class PictureStreamCompleter extends Diagnosticable 
               ^
Target kernel_snapshot failed: Exception: Errors during snapshot creation: null
build failed.

FAILURE: Build failed with an exception.

* Where:
Script 'C:\Flutter SDK\flutter\packages\flutter_tools\gradle\flutter.gradle' line: 882

* What went wrong:
Execution failed for task ':app:compileFlutterBuildDebug'.
> Process 'command 'C:\Flutter SDK\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 23s
Exception: Gradle task assembleDebug failed with exit code 1

我对此完全陌生，不知道这个错误指向哪里。我有最新的 Flutter SDK 版本：Flutter 1.17.0 和 Dart 2.8.1，它是一个稳定的版本。我的 Android Studio 版本是 3.6.2

【问题讨论】：

请阅读Under what circumstances may I add “urgent” or other similar phrases to my question, in order to obtain faster answers? - 总结是这不是解决志愿者的理想方式，并且可能会适得其反。请不要将此添加到您的问题中。

【参考方案1】：

尝试在您的终端中执行此操作：

flutter pub cache repair

如果它不起作用，删除颤振文件夹以及缓存文件夹应该可以完成这项工作。

【讨论】：

终端错误：'flutter' 未被识别为内部或外部命令、可运行程序或批处理文件。

@dhruvbhati：可以搜索该错误 - 它在 Windows 上很常见。

嘿，我在终端中运行了代码，但收到此错误：重新安装了 181 个软件包。无法重新安装 2 个软件包：-图像 2.1.12-video_player 0.10.6 pub 已完成，退出代码为 69

有什么办法可以只重新安装这两个，没有正确安装。如果它不起作用，那么你能告诉我颤振文件夹的位置和要删除的缓存文件夹吗

成功完成缓存修复，但错误未解决。请尽快帮助我。谢谢

【参考方案2】：

在我的情况下，我解决了这个问题，将最新版本的 Flutter svg 添加到 pubspec.yaml

查看链接以安装最新版本：https://pub.dev/packages/flutter_svg#-installing-tab-