Iam在尝试运行flutter时面临错误。
D:fluttapptestbuild>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:fluttapptestbuildandroidgradlew.bat" exited abnormally:
FAILURE: Build failed with an exception.
* Where:
Build file 'D:fluttapptestbuildandroidappbuild.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:fluttapptestbuildandroidgradlew.bat app:properties
Please review your Gradle project setup in the android/ folder.
D:fluttapptestbuild>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:UsersBhanuAppDataLocal
• Android NDK location not configured (optional; useful for native profiling support)
• Platform android-28, build-tools 28.0.3
• ANDROID_HOME = D:UsersBhanuAppDataLocal
• Java binary at: D:Program FilesAndroidAndroid Studiojrebinjava
• 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 FilesAndroidAndroid 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!
我在这里添加了回购。我已经提取了示例代码来制作发布应用程序版本，但无法生成它们。密钥存储已创建并添加到代码回购
https://github.com/bhanu888/buildapk
对我来说，这是一个路径问题。
我在跟随颤动向导https://flutter.io/docs/deployment/android
Create a file named <app dir>/android/key.properties that contains a reference to your keystore:
出于某种原因，我(错误地)将我的"key.properties"放在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，以及您的文件所在的位置：)
额外信息：帮助med的是检查具有不同设置的"gradle.build"文件，而给我带来问题的始终是storeFile文件(keystoreProperties[‘storeFile’])。试着把它注释掉，或者改为：
storeFile file("key.jks")
如果这样做有效，那么您就知道您的"key.jks"文件的路径是正确的。然后尝试引入poperties文件(keystoreProperties)像
storeFile file(keystoreProperties['storeFile'])
这在一开始不起作用，但现在起作用了：)
因此，再次检查"key.jks"one_answers"key.properties"文件是否位于"正确"的位置，以及如何指向它们。
如果您从github下载了该应用程序，则签名配置可能会进行注释调整。试着这样在android/app/build.gradle:上评论代码
/*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
如果您只是在测试或调试而不是发布，您可能会考虑将构建类型更改为debug而不是发布。
In <APP_FOLDER>/android/app/build.gradle
buildTypes {
release {
signingConfig signingConfigs.debug
}
}
我使用过
storeFile file(keystoreProperties['storeFile'])
在编译时，它抛出了一个错误。但在用替换上述线路后
storeFile file("key.jks")
生成成功。我不知道这是怎么发生的。
The problem occurred when you download an app from github
go to > android > app > build.gradle
in your build gradle file :--
signingConfigs {
release {
keyAlias keystoreProperties['keyAlias']
keyPassword keystoreProperties['keyPassword']
storeFile file(keystoreProperties['storeFile'])
storePassword keystoreProperties['storePassword']
}
}
Replace: storeFile file(keystoreProperties['storeFile'])
to: storeFile file("key.jks")
1)检查此项目中的密钥"Key.jks">
转到"gradle.build">
并将其更换为
storeFile file("key.jks")
带有
storeFile file(keystoreProperties['storeFile'])
必须有两个文件，其中一个后缀为
- "调试">
- "释放"；通过文件资源管理器将这两个文件添加到您的项目中然后编辑文件中名为local.properties的路径
- debugStoreFile=C:/Users/Sachin/Android_Studio_project
- storeFile=C:/Users/Sachin/Android_Studio_project
它在删除或评论后对我有效
这些行(与应用密钥签名有关)来自"；build.gradle"；文件
//android.signingConfigs.release.storeFile rootProject.file(props.keyStore)
//android.signingConfigs.release.storePassword props.keyStorePassword
//android.signingConfigs.release.keyAlias props.keyAlias
//android.signingConfigs.release.keyPassword props.keyAliasPassword
这对我有效
替换：storeFile file(keystoreProperties['storeFile'])
至：storeFile file("key.jks")