Gradle 错误：字符串索引超出范围：0

Question

尝试使用 Gradle 编译 Android 项目并收到一个奇怪的错误。 当我运行./gradlew tasks --stacktrace。尝试了干净的重建，repo的新克隆，不同的分支，同事都能够构建aok。

寻找要检查/尝试解决此问题的想法。

*更新：恢复到 Gradle 2.11 和 com.android.tools.build:gradle:2.2.0-alpha6 似乎已经解决了这个问题。 *

这是堆栈：

FAILURE: Build failed with an exception.

* What went wrong:
String index out of range: 0

* Try:
Run with --info or --debug option to get more log output.

* Exception is:
java.lang.StringIndexOutOfBoundsException: String index out of range: 0
        at org.gradle.internal.reflect.JavaReflectionUtil.toMethodName(JavaReflectionUtil.java:196)
        at org.gradle.internal.reflect.JavaReflectionUtil.writeablePropertyIfExists(JavaReflectionUtil.java:156)
        at org.gradle.initialization.ProjectPropertySettingBuildLoader$CachingPropertyApplicator.configureProperty(ProjectPropertySettingBuildLoader.java:99)
        at org.gradle.initialization.ProjectPropertySettingBuildLoader.addPropertiesToProject(ProjectPropertySettingBuildLoader.java:76)
        at org.gradle.initialization.ProjectPropertySettingBuildLoader.setProjectProperties(ProjectPropertySettingBuildLoader.java:53)
        at org.gradle.initialization.ProjectPropertySettingBuildLoader.load(ProjectPropertySettingBuildLoader.java:49)
        at org.gradle.initialization.NotifyingSettingsLoader.findAndLoadSettings(NotifyingSettingsLoader.java:35)
        at org.gradle.initialization.DefaultGradleLauncher.doBuildStages(DefaultGradleLauncher.java:118)
        at org.gradle.initialization.DefaultGradleLauncher.access$200(DefaultGradleLauncher.java:32)
        at org.gradle.initialization.DefaultGradleLauncher$1.create(DefaultGradleLauncher.java:98)
        at org.gradle.initialization.DefaultGradleLauncher$1.create(DefaultGradleLauncher.java:92)
        at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:91)
        at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:63)
        at org.gradle.initialization.DefaultGradleLauncher.doBuild(DefaultGradleLauncher.java:92)
        at org.gradle.initialization.DefaultGradleLauncher.run(DefaultGradleLauncher.java:83)
        at org.gradle.launcher.exec.InProcessBuildActionExecuter$DefaultBuildController.run(InProcessBuildActionExecuter.java:99)
        at org.gradle.tooling.internal.provider.ExecuteBuildActionRunner.run(ExecuteBuildActionRunner.java:28)
        at org.gradle.launcher.exec.ChainingBuildActionRunner.run(ChainingBuildActionRunner.java:35)
        at org.gradle.launcher.exec.InProcessBuildActionExecuter.execute(InProcessBuildActionExecuter.java:48)
        at org.gradle.launcher.exec.InProcessBuildActionExecuter.execute(InProcessBuildActionExecuter.java:30)
        at org.gradle.launcher.exec.ContinuousBuildActionExecuter.execute(ContinuousBuildActionExecuter.java:81)
        at org.gradle.launcher.exec.ContinuousBuildActionExecuter.execute(ContinuousBuildActionExecuter.java:46)
        at org.gradle.launcher.daemon.server.exec.ExecuteBuild.doBuild(ExecuteBuild.java:52)
        at org.gradle.launcher.daemon.server.exec.BuildCommandOnly.execute(BuildCommandOnly.java:36)
        at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
        at org.gradle.launcher.daemon.server.exec.WatchForDisconnection.execute(WatchForDisconnection.java:37)
        at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
        at org.gradle.launcher.daemon.server.exec.ResetDeprecationLogger.execute(ResetDeprecationLogger.java:26)
        at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
        at org.gradle.launcher.daemon.server.exec.RequestStopIfSingleUsedDaemon.execute(RequestStopIfSingleUsedDaemon.java:34)
        at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
        at org.gradle.launcher.daemon.server.exec.ForwardClientInput$2.call(ForwardClientInput.java:74)
        at org.gradle.launcher.daemon.server.exec.ForwardClientInput$2.call(ForwardClientInput.java:72)
        at org.gradle.util.Swapper.swap(Swapper.java:38)
        at org.gradle.launcher.daemon.server.exec.ForwardClientInput.execute(ForwardClientInput.java:72)
        at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
        at org.gradle.launcher.daemon.server.health.DaemonHealthTracker.execute(DaemonHealthTracker.java:40)
        at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
        at org.gradle.launcher.daemon.server.exec.LogToClient.doBuild(LogToClient.java:60)
        at org.gradle.launcher.daemon.server.exec.BuildCommandOnly.execute(BuildCommandOnly.java:36)
        at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
        at org.gradle.launcher.daemon.server.exec.EstablishBuildEnvironment.doBuild(EstablishBuildEnvironment.java:72)
        at org.gradle.launcher.daemon.server.exec.BuildCommandOnly.execute(BuildCommandOnly.java:36)
        at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
        at org.gradle.launcher.daemon.server.health.HintGCAfterBuild.execute(HintGCAfterBuild.java:41)
        at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
        at org.gradle.launcher.daemon.server.exec.StartBuildOrRespondWithBusy$1.run(StartBuildOrRespondWithBusy.java:50)
        at org.gradle.launcher.daemon.server.DaemonStateCoordinator$1.run(DaemonStateCoordinator.java:237)
        at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:54)
        at org.gradle.internal.concurrent.StoppableExecutorImpl$1.run(StoppableExecutorImpl.java:40)

系统详情：

Gradle 2.14.1

构建时间：2016-07-18 06:38:37 UTC 修订：d9e2113d9fb05a5caabba61798bdb8dfdca83719

时髦：2.4.4 Ant：2015 年 6 月 29 日编译的 Apache Ant(TM) 版本 1.9.6 JVM：1.8.0_101（甲骨文公司 25.101-b13） 操作系统：Mac OS X 10.11.6 x86_64

Answer 1

合并冲突对我造成了这种影响。冲突发生在gradle.properties。像<<<<<<< HEAD 这样的行是我认为的原因。如果消息更具描述性，那将会很有帮助。

Answer 2

= 是键值分隔符。如果要拆分属性文件中的部分，可以使用注释：

foo.bar=foo
#=======
foo.baz=baz

更多信息请见：properties file format。

Answer 3

我通过删除全局 gradle.properties 文件 ~/.gradle/gradle.properties 中的所有条目发现了问题

所以认为我以前的文件中肯定有 gradle 不喜欢的东西。在复制和粘贴几个部分后，我发现这是罪魁祸首

=======

我一直在使用 ====== 来拆分我的 gradle 属性部分（我定义了开源和商业密钥/属性）。

在 gradle 2.11 的先前版本中，这没问题并且编译良好，但在 2.14.1 上，您会收到神秘错误“字符串索引超出范围：0”。

Answer 4

对我来说，问题是由于 gradle.properties 的 SVN 冲突引起的，如下所示： bin build.gradle gradle.properties gradle.properties.r91662 src 构建 build.num gradle.properties.mine gradle.properties.r91979 tmp

有一次，我将 gradle.properties 设置为 svn 解析，gradle build 开始正常工作。

Answer 5

这表示gradle.properties中有一些错误的值，请删除无效的条目。

Answer 6

删除为我工作的~/.gradle/ dir，当我将我的android studio 更新为2.3.1 时，Gradle Exception:String index out of range:0

Answer 7

检查您的settings.gradle，如果它在您的项目中包含任何已删除/不存在的模块。

我在settings.gradle 文件中有一个已删除 模块仍然躺在。删除它解决了我的问题。

Answer 8

检查您的文件，这可能是您有未解决的合并冲突，这在您的代码中添加了不需要的额外字符，例如

删除 ~/.gradle/ 目录