Flutter：gradle 构建失败，错误为“评估根项目 'android' 时出现问题 > 配置项目 ':app' 时出现问题。”

Question

我的 flutter 应用程序在模拟器上运行良好，通过 USB 连接时在我的 android 上运行良好，但从 Play 商店更新时在打开之前崩溃。 对尝试过更新的其他人也这样做。 所以我想我会尝试重建为 apk 并从 firebase 发行版安装。

如果我作为 appbundle 或 apk 运行但仅在 apk --split-per-abi 上失败，flutter build 工作正常。 我不确定这个错误是否与它崩溃的原因有关，或者它是否是一个新问题。

这是我在运行 flutter build -v apk --split-per-abi 时得到的错误

 FAILURE: Build failed with an exception.
[   +1 ms] * Where:
[        ] Script
'/Users/me/development/flutter-3/packages/flutter_tools/gradle/flutter.gradle' line: 646
[        ] * What went wrong:
[        ] A problem occurred evaluating root project 'android'.
[        ] > A problem occurred configuring project ':app'.
[   +1 ms]    > The value for this property cannot be changed any further.
[        ] * 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 1s

我似乎一直遇到与此相关的其他问题，这是由 gradle 版本或谷歌服务版本引起的。 我尝试了几个不同的版本。 目前使用 https://services.gradle.org/distributions/gradle-6.5-all.zip 和

classpath 'com.android.tools.build:gradle:4.1.0'
classpath 'com.google.gms:google-services:4.1.0'

我还检查了错误消息中的文件，第 646 行包含： abiVersionCode * 1000 + variant.versionCode

我已经运行 flutter clean 了，这是我的 flutter doctor -v 输出：

[✓] Flutter (Channel master, 1.24.0-4.0.pre.167, on Mac OS X 10.15.6 19G2021 darwin-x64, locale en-US)
    • Flutter version 1.24.0-4.0.pre.167 at /Users/me/development/flutter-3
    • Framework revision 22724370cb (54 minutes ago), 2020-10-30 11:00:24 -0700
    • Engine revision 99cc50dfff
    • Dart version 2.11.0 (build 2.11.0-266.0.dev)

[✓] Android toolchain - develop for Android devices (Android SDK version 29.0.2)
    • Android SDK at /Users/me/Library/Android/sdk
    • Platform android-29, build-tools 29.0.2
    • Java binary at: /Applications/Android Studio.app/Contents/jre/jdk/Contents/Home/bin/java
    • Java version OpenJDK Runtime Environment (build 1.8.0_242-release-1644-b3-6222593)
    • All Android licenses accepted.

[✓] Xcode - develop for iOS and macOS (Xcode 11.3.1)
    • Xcode at /Applications/Xcode.app/Contents/Developer
    • Xcode 11.3.1, Build version 11C504
    • CocoaPods version 1.9.1

[✓] Chrome - develop for the web
    • Chrome at /Applications/Google Chrome.app/Contents/MacOS/Google Chrome

[✓] Android Studio (version 4.1)
    • Android Studio at /Applications/Android Studio.app/Contents
    • 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-b3-6222593)

[✓] Android Studio (version 3.5)
    • Android Studio at /Users/me/Library/Application
      Support/JetBrains/Toolbox/apps/AndroidStudio/ch-0/191.5900203/Android Studio.app/Contents
    • 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_202-release-1483-b49-5587405)

[✓] VS Code (version 1.46.0)
    • VS Code at /Applications/Visual Studio Code.app/Contents
    • Flutter extension version 3.12.2

[✓] Connected device (2 available)
    • Web Server (web) • web-server • web-javascript • Flutter Tools
    • Chrome (web)     • chrome     • web-javascript • Google Chrome 86.0.4240.111

• No issues found!

Answer 1

将android/build.gradle文件中的 gradle 版本更改为 3.5.0。

buildscript {
repositories {
    google()
    jcenter()
}

dependencies {
    ...
    classpath 'com.android.tools.build:gradle:3.5.0' // Use this version
}
}

在android/gradle/wrapper/gradle-wrapper.properties 上，您的 distributionUrl 也应该具有以下 gradle 版本。

gradle-5.6.2-all.zip

这样您就不会遇到任何其他问题。

最后，运行这些命令

rm -rf android/.gradle
rm -rf $HOME/.gradle # This is for Mac users
flutter build apk --target-platform android-arm,android-arm64,android-x64 --split-per-abi

它应该像魅力一样工作！ 当事情变得不太成熟和稳定时，稍后更新 Gradle。

Answer 2

将您的 Android 手机更新到最新版本！ 或者按照上面的解决方案