失败：构建失败并出现异常（Flutter）

Question

我在重新安装我的 dart SDK 后尝试运行我的 flutter 应用程序，尽管已连接到互联网，但它一直出现此错误。我已经有这个问题很长时间了。我试过删除 apply plugin: 'com.google.gms.google-services' 但是好像没有效果。我很茫然。我已经尝试过 flutter clean，将频道从 beta 更改为稳定版，然后再次更改为 beta 版和稳定版，重新安装 sdk api 级别 28。所有这一切都是在我使用 Animator 小部件时遇到一些问题之后开始的，一些关于 blocs 的问题.


* What went wrong:
Could not determine the dependencies of task ':app:compileDebugJavaWithJavac'.
> Could not resolve all task dependencies for configuration ':app:debugCompileClasspath'.
   > Could not resolve io.flutter:flutter_embedding_debug:1.0.0-c4229bfbbae455ad69c967be19aee3fadd6486e1.
     Required by:
         project :app
         project :app > project :google_sign_in
         project :app > project :firebase_storage
         project :app > project :google_api_availability
         project :app > project :sqflite
         project :app > project :geolocator
         project :app > project :firebase_messaging
         project :app > project :path_provider
         project :app > project :cloud_firestore
         project :app > project :location_permissions
         project :app > project :image_picker
         project :app > project :firebase_auth
         project :app > project :firebase_core
      > Could not resolve io.flutter:flutter_embedding_debug:1.0.0-c4229bfbbae455ad69c967be19aee3fadd6486e1.
         > Could not get resource 'https:/maven.google.com/io/flutter/flutter_embedding_debug/1.0.0-c4229bfbbae455ad69c967be19aee3fadd6486e1/flutter_embedding_debug-1.0.0-c4229bfbbae455ad69c967be19aee3fadd6486e1.pom'.
            > Could not GET 'https:/maven.google.com/io/flutter/flutter_embedding_debug/1.0.0-c4229bfbbae455ad69c967be19aee3fadd6486e1/flutter_embedding_debug-1.0.0-c4229bfbbae455ad69c967be19aee3fadd6486e1.pom'.
               > URI does not specify a valid host name: https:/maven.google.com/io/flutter/flutter_embedding_debug/1.0.0-c4229bfbbae455ad69c967be19aee3fadd6486e1/flutter_embedding_debug-1.0.0-c4229bfbbae455ad69c967be19aee3fadd6486e1.pom
      > Could not resolve io.flutter:flutter_embedding_debug:1.0.0-c4229bfbbae455ad69c967be19aee3fadd6486e1.
         > Could not get resource 'http://download.flutter.io/io/flutter/flutter_embedding_debug/1.0.0-c4229bfbbae455ad69c967be19aee3fadd6486e1/flutter_embedding_debug-1.0.0-c4229bfbbae455ad69c967be19aee3fadd6486e1.pom'.
            > Could not GET 'http://download.flutter.io/io/flutter/flutter_embedding_debug/1.0.0-c4229bfbbae455ad69c967be19aee3fadd6486e1/flutter_embedding_debug-1.0.0-c4229bfbbae455ad69c967be19aee3fadd6486e1.pom'.
               > Connection reset
      > Could not resolve io.flutter:flutter_embedding_debug:1.0.0-c4229bfbbae455ad69c967be19aee3fadd6486e1.
         > Could not get resource 'http://download.flutter.io/io/flutter/flutter_embedding_debug/1.0.0-c4229bfbbae455ad69c967be19aee3fadd6486e1/flutter_embedding_debug-1.0.0-c4229bfbbae455ad69c967be19aee3fadd6486e1.pom'.
            > Could not GET 'http://download.flutter.io/io/flutter/flutter_embedding_debug/1.0.0-c4229bfbbae455ad69c967be19aee3fadd6486e1/flutter_embedding_debug-1.0.0-c4229bfbbae455ad69c967be19aee3fadd6486e1.pom'.
               > Connection reset
      > Could not resolve io.flutter:flutter_embedding_debug:1.0.0-c4229bfbbae455ad69c967be19aee3fadd6486e1.
         > Could not get resource 'http://download.flutter.io/io/flutter/flutter_embedding_debug/1.0.0-c4229bfbbae455ad69c967be19aee3fadd6486e1/flutter_embedding_debug-1.0.0-c4229bfbbae455ad69c967be19aee3fadd6486e1.pom'.
            > Could not GET 'http://download.flutter.io/io/flutter/flutter_embedding_debug/1.0.0-c4229bfbbae455ad69c967be19aee3fadd6486e1/flutter_embedding_debug-1.0.0-c4229bfbbae455ad69c967be19aee3fadd6486e1.pom'.
               > Connection reset
   > Could not resolve io.flutter:arm64_v8a_debug:1.0.0-c4229bfbbae455ad69c967be19aee3fadd6486e1.
     Required by:
         project :app
      > Could not resolve io.flutter:arm64_v8a_debug:1.0.0-c4229bfbbae455ad69c967be19aee3fadd6486e1.
         > Could not get resource 'https:/maven.google.com/io/flutter/arm64_v8a_debug/1.0.0-c4229bfbbae455ad69c967be19aee3fadd6486e1/arm64_v8a_debug-1.0.0-c4229bfbbae455ad69c967be19aee3fadd6486e1.pom'.
            > Could not GET 'https:/maven.google.com/io/flutter/arm64_v8a_debug/1.0.0-c4229bfbbae455ad69c967be19aee3fadd6486e1/arm64_v8a_debug-1.0.0-c4229bfbbae455ad69c967be19aee3fadd6486e1.pom'.
               > URI does not specify a valid host name: https:/maven.google.com/io/flutter/arm64_v8a_debug/1.0.0-c4229bfbbae455ad69c967be19aee3fadd6486e1/arm64_v8a_debug-1.0.0-c4229bfbbae455ad69c967be19aee3fadd6486e1.pom
      > Could not resolve io.flutter:arm64_v8a_debug:1.0.0-c4229bfbbae455ad69c967be19aee3fadd6486e1.
         > Could not get resource 'http://download.flutter.io/io/flutter/arm64_v8a_debug/1.0.0-c4229bfbbae455ad69c967be19aee3fadd6486e1/arm64_v8a_debug-1.0.0-c4229bfbbae455ad69c967be19aee3fadd6486e1.pom'.
            > Could not GET 'http://download.flutter.io/io/flutter/arm64_v8a_debug/1.0.0-c4229bfbbae455ad69c967be19aee3fadd6486e1/arm64_v8a_debug-1.0.0-c4229bfbbae455ad69c967be19aee3fadd6486e1.pom'.
               > Connection reset
      > Could not resolve io.flutter:arm64_v8a_debug:1.0.0-c4229bfbbae455ad69c967be19aee3fadd6486e1.
         > Could not get resource 'http://download.flutter.io/io/flutter/arm64_v8a_debug/1.0.0-c4229bfbbae455ad69c967be19aee3fadd6486e1/arm64_v8a_debug-1.0.0-c4229bfbbae455ad69c967be19aee3fadd6486e1.pom'.
            > Could not GET 'http://download.flutter.io/io/flutter/arm64_v8a_debug/1.0.0-c4229bfbbae455ad69c967be19aee3fadd6486e1/arm64_v8a_debug-1.0.0-c4229bfbbae455ad69c967be19aee3fadd6486e1.pom'.
               > Connection reset
      > Could not resolve io.flutter:arm64_v8a_debug:1.0.0-c4229bfbbae455ad69c967be19aee3fadd6486e1.
         > Could not get resource 'http://download.flutter.io/io/flutter/arm64_v8a_debug/1.0.0-c4229bfbbae455ad69c967be19aee3fadd6486e1/arm64_v8a_debug-1.0.0-c4229bfbbae455ad69c967be19aee3fadd6486e1.pom'.
            > Could not GET 'http://download.flutter.io/io/flutter/arm64_v8a_debug/1.0.0-c4229bfbbae455ad69c967be19aee3fadd6486e1/arm64_v8a_debug-1.0.0-c4229bfbbae455ad69c967be19aee3fadd6486e1.pom'.
               > Connection reset
   > Could not resolve io.flutter:x86_debug:1.0.0-c4229bfbbae455ad69c967be19aee3fadd6486e1.
     Required by:
         project :app
      > Could not resolve io.flutter:x86_debug:1.0.0-c4229bfbbae455ad69c967be19aee3fadd6486e1.
         > Could not get resource 'https:/maven.google.com/io/flutter/x86_debug/1.0.0-c4229bfbbae455ad69c967be19aee3fadd6486e1/x86_debug-1.0.0-c4229bfbbae455ad69c967be19aee3fadd6486e1.pom'.
            > Could not GET 'https:/maven.google.com/io/flutter/x86_debug/1.0.0-c4229bfbbae455ad69c967be19aee3fadd6486e1/x86_debug-1.0.0-c4229bfbbae455ad69c967be19aee3fadd6486e1.pom'.
               > URI does not specify a valid host name: https:/maven.google.com/io/flutter/x86_debug/1.0.0-c4229bfbbae455ad69c967be19aee3fadd6486e1/x86_debug-1.0.0-c4229bfbbae455ad69c967be19aee3fadd6486e1.pom
      > Could not resolve io.flutter:x86_debug:1.0.0-c4229bfbbae455ad69c967be19aee3fadd6486e1.
         > Could not get resource 'http://download.flutter.io/io/flutter/x86_debug/1.0.0-c4229bfbbae455ad69c967be19aee3fadd6486e1/x86_debug-1.0.0-c4229bfbbae455ad69c967be19aee3fadd6486e1.pom'.
            > Could not GET 'http://download.flutter.io/io/flutter/x86_debug/1.0.0-c4229bfbbae455ad69c967be19aee3fadd6486e1/x86_debug-1.0.0-c4229bfbbae455ad69c967be19aee3fadd6486e1.pom'.
               > Connection reset
      > Could not resolve io.flutter:x86_debug:1.0.0-c4229bfbbae455ad69c967be19aee3fadd6486e1.
         > Could not get resource 'http://download.flutter.io/io/flutter/x86_debug/1.0.0-c4229bfbbae455ad69c967be19aee3fadd6486e1/x86_debug-1.0.0-c4229bfbbae455ad69c967be19aee3fadd6486e1.pom'.
            > Could not GET 'http://download.flutter.io/io/flutter/x86_debug/1.0.0-c4229bfbbae455ad69c967be19aee3fadd6486e1/x86_debug-1.0.0-c4229bfbbae455ad69c967be19aee3fadd6486e1.pom'.
               > Connection reset
      > Could not resolve io.flutter:x86_debug:1.0.0-c4229bfbbae455ad69c967be19aee3fadd6486e1.
         > Could not get resource 'http://download.flutter.io/io/flutter/x86_debug/1.0.0-c4229bfbbae455ad69c967be19aee3fadd6486e1/x86_debug-1.0.0-c4229bfbbae455ad69c967be19aee3fadd6486e1.pom'.
            > Could not GET 'http://download.flutter.io/io/flutter/x86_debug/1.0.0-c4229bfbbae455ad69c967be19aee3fadd6486e1/x86_debug-1.0.0-c4229bfbbae455ad69c967be19aee3fadd6486e1.pom'.
               > Connection reset
   > Could not resolve io.flutter:x86_64_debug:1.0.0-c4229bfbbae455ad69c967be19aee3fadd6486e1.
     Required by:
         project :app
      > Could not resolve io.flutter:x86_64_debug:1.0.0-c4229bfbbae455ad69c967be19aee3fadd6486e1.
         > Could not get resource 'https:/maven.google.com/io/flutter/x86_64_debug/1.0.0-c4229bfbbae455ad69c967be19aee3fadd6486e1/x86_64_debug-1.0.0-c4229bfbbae455ad69c967be19aee3fadd6486e1.pom'.
            > Could not GET 'https:/maven.google.com/io/flutter/x86_64_debug/1.0.0-c4229bfbbae455ad69c967be19aee3fadd6486e1/x86_64_debug-1.0.0-c4229bfbbae455ad69c967be19aee3fadd6486e1.pom'.
               > URI does not specify a valid host name: https:/maven.google.com/io/flutter/x86_64_debug/1.0.0-c4229bfbbae455ad69c967be19aee3fadd6486e1/x86_64_debug-1.0.0-c4229bfbbae455ad69c967be19aee3fadd6486e1.pom
      > Could not resolve io.flutter:x86_64_debug:1.0.0-c4229bfbbae455ad69c967be19aee3fadd6486e1.
         > Could not get resource 'http://download.flutter.io/io/flutter/x86_64_debug/1.0.0-c4229bfbbae455ad69c967be19aee3fadd6486e1/x86_64_debug-1.0.0-c4229bfbbae455ad69c967be19aee3fadd6486e1.pom'.
            > Could not GET 'http://download.flutter.io/io/flutter/x86_64_debug/1.0.0-c4229bfbbae455ad69c967be19aee3fadd6486e1/x86_64_debug-1.0.0-c4229bfbbae455ad69c967be19aee3fadd6486e1.pom'.
               > Connection reset
      > Could not resolve io.flutter:x86_64_debug:1.0.0-c4229bfbbae455ad69c967be19aee3fadd6486e1.
         > Could not get resource 'http://download.flutter.io/io/flutter/x86_64_debug/1.0.0-c4229bfbbae455ad69c967be19aee3fadd6486e1/x86_64_debug-1.0.0-c4229bfbbae455ad69c967be19aee3fadd6486e1.pom'.
            > Could not GET 'http://download.flutter.io/io/flutter/x86_64_debug/1.0.0-c4229bfbbae455ad69c967be19aee3fadd6486e1/x86_64_debug-1.0.0-c4229bfbbae455ad69c967be19aee3fadd6486e1.pom'.
               > Connection reset
      > Could not resolve io.flutter:x86_64_debug:1.0.0-c4229bfbbae455ad69c967be19aee3fadd6486e1.
         > Could not get resource 'http://download.flutter.io/io/flutter/x86_64_debug/1.0.0-c4229bfbbae455ad69c967be19aee3fadd6486e1/x86_64_debug-1.0.0-c4229bfbbae455ad69c967be19aee3fadd6486e1.pom'.
            > Could not GET 'http://download.flutter.io/io/flutter/x86_64_debug/1.0.0-c4229bfbbae455ad69c967be19aee3fadd6486e1/x86_64_debug-1.0.0-c4229bfbbae455ad69c967be19aee3fadd6486e1.pom'.
               > Connection reset

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

BUILD FAILED in 56s
Finished with error: Gradle task assembleDebug failed with exit code 1

Answer 1

我怀疑使用的是 vanilla Dart SDK，而不是 Flutter 附带的 SDK。

一个简单的修复方法是删除您安装的 Dart SDK 并重新安装 Flutter。

或者，修复 PATH 环境变量将确保所使用的 SDK。

失败：构建失败并出现异常（Flutter）

FAILURE: Build failed with an exception (Flutter)

dependencies

android

gradle

flutter

flutter-dependencies