iam尝试运行抖动时遇到错误。
D:\fluttapp\testbuild>flutter run
Launching lib/main.dart on Google Pixel 2 XL in debug mode...
Initializing gradle... 2.1s
Resolving dependencies...
* Error running Gradle:
ProcessException: Process "D:\fluttapp\testbuild\android\gradlew.bat" exited abnormally:
FAILURE: Build failed with an exception.
* Where:
Build file 'D:\fluttapp\testbuild\android\app\build.gradle' line: 57
* What went wrong:
A problem occurred evaluating project ':app'.
> path may not be null or empty string. path='null'
* 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 6s
Command: D:\fluttapp\testbuild\android\gradlew.bat app:properties
Please review your Gradle project setup in the android/ folder.
D:\fluttapp\testbuild>flutter doctor -v
[√] Flutter (Channel beta, v1.1.8, on Microsoft Windows [Version 10.0.17134.556], locale
en-IN)
• Flutter version 1.1.8 at D:\flutter
• Framework revision 985ccb6d14 (3 weeks ago), 2019-01-08 13:45:55 -0800
• Engine revision 7112b72cc2
• Dart version 2.1.1 (build 2.1.1-dev.0.1 ec86471ccc)
[√] Android toolchain - develop for Android devices (Android SDK version 28.0.3)
• Android SDK at D:\Users\Bhanu\AppData\Local
• Android NDK location not configured (optional; useful for native profiling support)
• Platform android-28, build-tools 28.0.3
• ANDROID_HOME = D:\Users\Bhanu\AppData\Local
• Java binary at: D:\Program Files\Android\Android Studio\jre\bin\java
• Java version OpenJDK Runtime Environment (build 1.8.0_152-release-1024-b02)
• All Android licenses accepted.
[√] Android Studio (version 3.1)
• Android Studio at D:\Program Files\Android\Android Studio
• Flutter plugin version 29.0.1
• Dart plugin version 173.4700
• Java version OpenJDK Runtime Environment (build 1.8.0_152-release-1024-b02)
[√] Connected device (1 available)
• Google Pixel 2 XL • 192.168.50.101:5555 • android-x86 • Android 9 (API 28)
• No issues found!
我在这里添加了仓库。我已采用示例代码来制作发布应用版本，但无法生成它们。密钥库已创建并添加到代码库
答案 0 :(得分：3)
对我来说，这是一个问题。
我正在遵循抖动指南https://flutter.io/docs/deployment/android
Create a file named <app dir>/android/key.properties that contains a reference to your keystore:
由于某种原因，我（错误地）将我的“ key.properties”放置在app_dir / android / app 文件夹中，这给了我错误。
* What went wrong:
A problem occurred evaluating project ':app'.
> path may not be null or empty string. path='null'
因此，请检查您的路径以及文件的位置：）
奖励信息： 帮助医学的是用不同的设置检查“ gradle.build”文件，而总是给我带来麻烦的是storeFile文件（keystoreProperties ['storeFile']）。 尝试将其注释掉，或将其更改为：
storeFile file("key.jks")
如果这有效，则说明您具有指向“ key.jks”文件的正确路径。然后尝试引入poperties文件（keystoreProperties） 像
storeFile file(keystoreProperties['storeFile'])
起初这没用，但是现在：）
因此，请再次检查“ key.jks”和“ key.properties”文件是否位于“正确”位置，以及它们的指向方式。
答案 1 :(得分：3)
如果您是从github下载的应用程序，则签名配置可能会进行注释调整。尝试像这样在android / app / build.gradle上注释代码：
/*signingConfigs {
release {
keyAlias keystoreProperties['keyAlias']
keyPassword keystoreProperties['keyPassword']
storeFile file(keystoreProperties['storeFile'])
storePassword keystoreProperties['storePassword']
}
}
buildTypes {
release {
// TODO: Add your own signing config for the release build.
// Signing with the debug keys for now, so `flutter run --release` works.
signingConfig signingConfigs.release
}
*/`
解决方案位于： https://github.com/transistorsoft/flutter_background_geolocation/issues/18
答案 2 :(得分：0)
如果您只是测试或调试而不是发布，则可以考虑将构建类型更改为调试而不是发布。
In <APP_FOLDER>/android/app/build.gradle
buildTypes {
release {
signingConfig signingConfigs.debug
}
}
答案 3 :(得分：0)
1）检查此项目中的密钥“ key.jks”
转到“ gradle.build”
并替换
storeFile file("key.jks")
与
storeFile file(keystoreProperties['storeFile'])
答案 4 :(得分：0)
我用过
storeFile file(keystoreProperties['storeFile'])
在编译时抛出了错误。但是将上面的行替换为
storeFile file("key.jks")
构建成功。我不知道那是怎么回事..？
答案 5 :(得分：0)
必须有 2 个文件，一个带后缀