我正在尝试将我的应用程序从 Eclipse 迁移到 Android Studio。我没有使用导入功能，基于非常简单的创建项目。我成功地构建了项目，但是当我尝试运行我的应用程序时遇到了下一个错误。
AGPBI: {"kind":"simple","text":"Uncaught translation error: com.android.dex.util.ExceptionWithContext","sources":[{}]}
AGPBI: {"kind":"simple","text":"1 error; aborting","sources":[{}]}
我在 Google 搜索中看到了类似的错误，但找不到解决此问题的方法。
我的 build.gradle 看起来像这样。 (我删除了 signingConfigs。)
apply plugin: 'com.android.application'
android {
compileSdkVersion 'Google Inc.:Google APIs:21'
buildToolsVersion "23.0.2"
defaultConfig {
applicationId "net.dailytimer.imadoco"
minSdkVersion 9
versionCode 1
versionName "1.0"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
proguardFile 'C:/Android/AndroidStudioProjects/imadoco/document/proguard-project.txt'
signingConfig signingConfigs.config
}
}
productFlavors {
free {
versionCode 30800
versionName '3.08.0'
applicationId 'net.DailyTimer.imadocoFree'
}
}
}
dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
compile files('libs/acra-4.6.1.jar')
compile 'com.google.android.gms:play-services:8.3.0'
compile 'com.android.support:support-v4:23.1.0'
}
我尝试使用 --stacktrace 和 --debug 选项来获取更多日志，但没有帮助。
19:32:19.775 [DEBUG] [org.gradle.api.internal.tasks.execution.ExecuteAtMostOnceTaskExecuter] Finished executing task ':app:dexFreeDebug'
19:32:19.775 [LIFECYCLE] [class org.gradle.TaskExecutionLogger] :app:dexFreeDebug FAILED
19:32:19.776 [INFO] [org.gradle.execution.taskgraph.AbstractTaskPlanExecutor] :app:dexFreeDebug (Thread[Daemon worker Thread 32,5,main]) completed. Took 6.205 secs.
19:32:19.776 [DEBUG] [org.gradle.execution.taskgraph.AbstractTaskPlanExecutor] Task worker [Thread[Daemon worker Thread 32,5,main]] finished, busy: 10.137 secs, idle: 0.032 secs
19:32:19.777 [ERROR] [org.gradle.BuildExceptionReporter]
19:32:19.778 [ERROR] [org.gradle.BuildExceptionReporter] FAILURE: Build failed with an exception.
19:32:19.778 [ERROR] [org.gradle.BuildExceptionReporter]
19:32:19.778 [ERROR] [org.gradle.BuildExceptionReporter] * What went wrong:
19:32:19.778 [ERROR] [org.gradle.BuildExceptionReporter] Execution failed for task ':app:dexFreeDebug'.
19:32:19.778 [ERROR] [org.gradle.BuildExceptionReporter] > com.android.ide.common.process.ProcessException: org.gradle.process.internal.ExecException: Process 'command 'C:\Program Files\Java\jdk1.7.0_60\bin\java.exe'' finished with non-zero exit value 1
19:32:19.779 [ERROR] [org.gradle.BuildExceptionReporter]
19:32:19.779 [ERROR] [org.gradle.BuildExceptionReporter] * Exception is:
19:32:19.779 [ERROR] [org.gradle.BuildExceptionReporter] org.gradle.api.tasks.TaskExecutionException: Execution failed for task ':app:dexFreeDebug'.
19:32:19.780 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeActions(ExecuteActionsTaskExecuter.java:69)
19:32:19.780 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.execute(ExecuteActionsTaskExecuter.java:46)
19:32:19.780 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.api.internal.tasks.execution.PostExecutionAnalysisTaskExecuter.execute(PostExecutionAnalysisTaskExecuter.java:35)
19:32:19.780 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.api.internal.tasks.execution.SkipUpToDateTaskExecuter.execute(SkipUpToDateTaskExecuter.java:64)
19:32:19.780 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.api.internal.tasks.execution.ValidatingTaskExecuter.execute(ValidatingTaskExecuter.java:58)
19:32:19.780 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.api.internal.tasks.execution.SkipEmptySourceFilesTaskExecuter.execute(SkipEmptySourceFilesTaskExecuter.java:42)
19:32:19.781 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.api.internal.tasks.execution.SkipTaskWithNoActionsExecuter.execute(SkipTaskWithNoActionsExecuter.java:52)
19:32:19.781 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.api.internal.tasks.execution.SkipOnlyIfTaskExecuter.execute(SkipOnlyIfTaskExecuter.java:53)
19:32:19.781 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.api.internal.tasks.execution.ExecuteAtMostOnceTaskExecuter.execute(ExecuteAtMostOnceTaskExecuter.java:43)
19:32:19.781 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.api.internal.AbstractTask.executeWithoutThrowingTaskFailure(AbstractTask.java:310)
19:32:19.781 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.execution.taskgraph.AbstractTaskPlanExecutor$TaskExecutorWorker.executeTask(AbstractTaskPlanExecutor.java:79)
19:32:19.781 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.execution.taskgraph.AbstractTaskPlanExecutor$TaskExecutorWorker.processTask(AbstractTaskPlanExecutor.java:63)
19:32:19.781 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.execution.taskgraph.AbstractTaskPlanExecutor$TaskExecutorWorker.run(AbstractTaskPlanExecutor.java:51)
19:32:19.781 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor.process(DefaultTaskPlanExecutor.java:23)
19:32:19.781 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.execution.taskgraph.DefaultTaskGraphExecuter.execute(DefaultTaskGraphExecuter.java:88)
19:32:19.781 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.execution.SelectedTaskExecutionAction.execute(SelectedTaskExecutionAction.java:37)
19:32:19.782 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.execution.DefaultBuildExecuter.execute(DefaultBuildExecuter.java:62)
19:32:19.788 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.execution.DefaultBuildExecuter.access$200(DefaultBuildExecuter.java:23)
19:32:19.795 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.execution.DefaultBuildExecuter$2.proceed(DefaultBuildExecuter.java:68)
19:32:19.796 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.execution.DryRunBuildExecutionAction.execute(DryRunBuildExecutionAction.java:32)
19:32:19.796 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.execution.DefaultBuildExecuter.execute(DefaultBuildExecuter.java:62)
19:32:19.796 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.execution.DefaultBuildExecuter.execute(DefaultBuildExecuter.java:55)
19:32:19.796 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.initialization.DefaultGradleLauncher.doBuildStages(DefaultGradleLauncher.java:149)
19:32:19.796 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.initialization.DefaultGradleLauncher.doBuild(DefaultGradleLauncher.java:106)
19:32:19.797 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.initialization.DefaultGradleLauncher.run(DefaultGradleLauncher.java:86)
19:32:19.797 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.launcher.exec.InProcessBuildActionExecuter$DefaultBuildController.run(InProcessBuildActionExecuter.java:90)
19:32:19.797 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.tooling.internal.provider.runner.BuildModelActionRunner.run(BuildModelActionRunner.java:54)
19:32:19.797 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.launcher.exec.ChainingBuildActionRunner.run(ChainingBuildActionRunner.java:35)
19:32:19.797 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.launcher.exec.InProcessBuildActionExecuter.execute(InProcessBuildActionExecuter.java:41)
19:32:19.798 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.launcher.exec.InProcessBuildActionExecuter.execute(InProcessBuildActionExecuter.java:28)
19:32:19.798 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.launcher.daemon.server.exec.ExecuteBuild.doBuild(ExecuteBuild.java:49)
19:32:19.798 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.launcher.daemon.server.exec.BuildCommandOnly.execute(BuildCommandOnly.java:36)
19:32:19.798 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
19:32:19.799 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.launcher.daemon.server.exec.WatchForDisconnection.execute(WatchForDisconnection.java:37)
19:32:19.799 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
19:32:19.799 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.launcher.daemon.server.exec.ResetDeprecationLogger.execute(ResetDeprecationLogger.java:26)
19:32:19.800 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
19:32:19.800 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.launcher.daemon.server.exec.RequestStopIfSingleUsedDaemon.execute(RequestStopIfSingleUsedDaemon.java:34)
19:32:19.800 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
19:32:19.800 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.launcher.daemon.server.exec.ForwardClientInput$2.call(ForwardClientInput.java:74)
19:32:19.801 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.launcher.daemon.server.exec.ForwardClientInput$2.call(ForwardClientInput.java:72)
19:32:19.801 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.util.Swapper.swap(Swapper.java:38)
19:32:19.801 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.launcher.daemon.server.exec.ForwardClientInput.execute(ForwardClientInput.java:72)
19:32:19.801 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
19:32:19.801 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.launcher.daemon.server.health.DaemonHealthTracker.execute(DaemonHealthTracker.java:47)
19:32:19.801 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
19:32:19.801 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.launcher.daemon.server.exec.LogToClient.doBuild(LogToClient.java:66)
19:32:19.802 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.launcher.daemon.server.exec.BuildCommandOnly.execute(BuildCommandOnly.java:36)
19:32:19.802 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
19:32:19.802 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.launcher.daemon.server.exec.EstablishBuildEnvironment.doBuild(EstablishBuildEnvironment.java:71)
19:32:19.802 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.launcher.daemon.server.exec.BuildCommandOnly.execute(BuildCommandOnly.java:36)
19:32:19.802 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
19:32:19.802 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.launcher.daemon.server.health.HintGCAfterBuild.execute(HintGCAfterBuild.java:41)
19:32:19.802 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
19:32:19.803 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.launcher.daemon.server.exec.StartBuildOrRespondWithBusy$1.run(StartBuildOrRespondWithBusy.java:50)
19:32:19.803 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.launcher.daemon.server.DaemonStateCoordinator$1.run(DaemonStateCoordinator.java:246)
19:32:19.803 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:54)
19:32:19.803 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.internal.concurrent.StoppableExecutorImpl$1.run(StoppableExecutorImpl.java:40)
19:32:19.803 [ERROR] [org.gradle.BuildExceptionReporter] Caused by: org.gradle.internal.UncheckedException: com.android.ide.common.process.ProcessException: org.gradle.process.internal.ExecException: Process 'command 'C:\Program Files\Java\jdk1.7.0_60\bin\java.exe'' finished with non-zero exit value 1
19:32:19.804 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.internal.UncheckedException.throwAsUncheckedException(UncheckedException.java:45)
19:32:19.804 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.internal.reflect.JavaMethod.invoke(JavaMethod.java:78)
19:32:19.804 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.api.internal.project.taskfactory.AnnotationProcessingTaskFactory$IncrementalTaskAction.doExecute(AnnotationProcessingTaskFactory.java:243)
19:32:19.804 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.api.internal.project.taskfactory.AnnotationProcessingTaskFactory$StandardTaskAction.execute(AnnotationProcessingTaskFactory.java:219)
19:32:19.804 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.api.internal.project.taskfactory.AnnotationProcessingTaskFactory$IncrementalTaskAction.execute(AnnotationProcessingTaskFactory.java:230)
19:32:19.805 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.api.internal.project.taskfactory.AnnotationProcessingTaskFactory$StandardTaskAction.execute(AnnotationProcessingTaskFactory.java:208)
19:32:19.805 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeAction(ExecuteActionsTaskExecuter.java:80)
19:32:19.805 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeActions(ExecuteActionsTaskExecuter.java:61)
19:32:19.806 [ERROR] [org.gradle.BuildExceptionReporter] ... 57 more
19:32:19.806 [ERROR] [org.gradle.BuildExceptionReporter] Caused by: com.android.ide.common.process.ProcessException: org.gradle.process.internal.ExecException: Process 'command 'C:\Program Files\Java\jdk1.7.0_60\bin\java.exe'' finished with non-zero exit value 1
19:32:19.806 [ERROR] [org.gradle.BuildExceptionReporter] at com.android.build.gradle.internal.process.GradleProcessResult.assertNormalExitValue(GradleProcessResult.java:42)
19:32:19.806 [ERROR] [org.gradle.BuildExceptionReporter] at com.android.builder.core.AndroidBuilder.convertByteCode(AndroidBuilder.java:1276)
19:32:19.807 [ERROR] [org.gradle.BuildExceptionReporter] at com.android.builder.core.AndroidBuilder$convertByteCode$7.call(Unknown Source)
19:32:19.807 [ERROR] [org.gradle.BuildExceptionReporter] at com.android.build.gradle.tasks.Dex.doTaskAction(Dex.groovy:165)
19:32:19.807 [ERROR] [org.gradle.BuildExceptionReporter] at com.android.build.gradle.tasks.Dex.this$6$doTaskAction(Dex.groovy)
19:32:19.807 [ERROR] [org.gradle.BuildExceptionReporter] at com.android.build.gradle.tasks.Dex$this$6$doTaskAction.callCurrent(Unknown Source)
19:32:19.807 [ERROR] [org.gradle.BuildExceptionReporter] at com.android.build.gradle.tasks.Dex.taskAction(Dex.groovy:99)
19:32:19.808 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.internal.reflect.JavaMethod.invoke(JavaMethod.java:75)
19:32:19.808 [ERROR] [org.gradle.BuildExceptionReporter] ... 63 more
19:32:19.808 [ERROR] [org.gradle.BuildExceptionReporter] Caused by: org.gradle.process.internal.ExecException: Process 'command 'C:\Program Files\Java\jdk1.7.0_60\bin\java.exe'' finished with non-zero exit value 1
19:32:19.808 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.process.internal.DefaultExecHandle$ExecResultImpl.assertNormalExitValue(DefaultExecHandle.java:365)
19:32:19.808 [ERROR] [org.gradle.BuildExceptionReporter] at com.android.build.gradle.internal.process.GradleProcessResult.assertNormalExitValue(GradleProcessResult.java:40)
19:32:19.809 [ERROR] [org.gradle.BuildExceptionReporter] ... 70 more
19:32:19.809 [ERROR] [org.gradle.BuildExceptionReporter]
欢迎任何帮助。
[编辑 1]
我检查了日志输出，问题似乎与支持注释有关...我不知道。但专家可能会发现它很有用。
processing archive C:\Android\AndroidStudioProjects\imadoco\app\build\intermediates\pre-dexed\free\debug\support-annotations-23.1.0-24c46cbde714be0842274322039416f341dd73a0.jar...
ignored resource META-INF/
ignored resource META-INF/MANIFEST.MF
ignored resource android/
ignored resource android/support/
ignored resource android/support/annotation/
processing classes.dex...
23:07:52.739 [ERROR] [org.gradle.api.Project] AGPBI: {"kind":"simple","text":"Uncaught translation error: com.android.dex.util.ExceptionWithContext","sources":[{}]}
1 error; aborting
23:07:52.739 [DEBUG] [org.gradle.api.internal.tasks.execution.ExecuteAtMostOnceTaskExecuter] Finished executing task ':app:dexFreeDebug'
23:07:52.739 [LIFECYCLE] [class org.gradle.TaskExecutionLogger] :app:dexFreeDebug FAILED
23:07:52.740 [INFO] [org.gradle.execution.taskgraph.AbstractTaskPlanExecutor] :app:dexFreeDebug (Thread[Daemon worker Thread 5,5,main]) completed. Took 3.06 secs.
23:07:52.740 [DEBUG] [org.gradle.execution.taskgraph.AbstractTaskPlanExecutor] Task worker [Thread[Daemon worker Thread 5,5,main]] finished, busy: 6.815 secs, idle: 0.025 secs
23:07:52.741 [ERROR] [org.gradle.BuildExceptionReporter]
23:07:52.741 [ERROR] [org.gradle.BuildExceptionReporter] FAILURE: Build failed with an exception.
23:07:52.741 [ERROR] [org.gradle.BuildExceptionReporter]
23:07:52.741 [ERROR] [org.gradle.BuildExceptionReporter] * What went wrong:
23:07:52.742 [ERROR] [org.gradle.BuildExceptionReporter] Execution failed for task ':app:dexFreeDebug'.
23:07:52.742 [ERROR] [org.gradle.BuildExceptionReporter] > com.android.ide.common.process.ProcessException: org.gradle.process.internal.ExecException: Process 'command 'C:\Program Files\Java\jdk1.7.0_60\bin\java.exe'' finished with non-zero exit value 1
[编辑 2]
我添加了 support-annotations 库，因为在谷歌搜索“support-annotations”后它似乎也被链接了，但它没有帮助。仍然存在完全相同的错误。
dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
compile files('libs/acra-4.6.1.jar')
compile 'com.google.android.gms:play-services:8.3.0'
compile 'com.android.support:support-v4:23.1.0'
compile 'com.android.support:support-annotations:23.1.0'
}
[编辑 3]
由于 java.exe 正在向 Gradle 返回错误，java.exe 应该知道发现错误的位置/文件。但是 java.exe 本身没有日志。我检查了 Gradle 文档，但找不到让 java.exe 获取日志(标准输出？)的方法。我怎样才能做到这一点？我想该错误消息可能会将我带到正确的位置进行查看。
[编辑4]
我找到了 this thread我检查了如下所示的代码样式。
if (BuildConfig.DEBUG)
{
myView.setOnClickListener(new View.OnClickListener()
{
@Override
public void onClick(View v) {
// Do something
}
});
}
我有很多行代码将被优化删除，使用静态最终变量(如 BuildConfig.DEBUG)根据调试/发布、免费/付费等构建模式控制代码行为。但是我找不到与线程指出的问题相同的模式。
最佳答案
我终于找到了解决办法。 This answer救了我的命。
在我的例子中，我有下面的代码，这是导致这个恼人问题的原因。
private class MyLicenseCheckerCallback implements LicenseCheckerCallback
{
public void allow()
{
将这个类设置为public 解决了这个问题。
public class MyLicenseCheckerCallback implements LicenseCheckerCallback
{
public void allow()
{
一个文件中只有一个词“private”导致了这个问题，而且由于构建系统没有给出任何提示我们应该查看哪里，所以很难修复。我在谷歌上搜索了很多，我看到了 that answer仅在 SO 中的一个线程中。没有那个答案，我无法解决这个问题。感谢 Johny_G 和这个社区。
对于那些遇到同样问题的人，首先将当前代码提交到任何 VCS，然后尝试在一次批量操作(使用好的编辑器)中搜索并将单词“private”替换为“public”并构建/运行。如果问题消失，将几个文件放回以前的文件并构建/运行以查看哪个文件具有 key “private”。
关于安卓工作室 :Uncaught translation error, ExceptionWithContext，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/33582385/
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在Rails4.0.2中，我使用s3_direct_upload和aws-sdkgems直接为s3存储桶上传文件。在开发环境中它工作正常，但在生产环境中它会抛出如下错误，ActionView::Template::Error(noimplicitconversionofnilintoString)在View中，create_cv_url,:id=>"s3_uploader",:key=>"cv_uploads/{unique_id}/${filename}",:key_starts_with=>"cv_uploads/",:callback_param=>"cv[direct_uplo
使用Ruby1.9.2运行IDE提示说需要gemruby-debug-base19x并提供安装它。但是，在尝试安装它时会显示消息Failedtoinstallgems.Followinggemswerenotinstalled:C:/ProgramFiles(x86)/JetBrains/RubyMine3.2.4/rb/gems/ruby-debug-base19x-0.11.30.pre2.gem:Errorinstallingruby-debug-base19x-0.11.30.pre2.gem:The'linecache19'nativegemrequiresinstall
我知道全局变量$!包含最新的异常对象，但我对下面的语法感到困惑。谁能帮助我理解以下语法？rescue$! 最佳答案 此构造可防止异常停止您的程序并使堆栈跟踪冒泡。它还会将该异常作为值返回，这很有用。a=get_me_datarescue$!在此行之后，a将保存请求的数据或异常。然后您可以分析该异常并采取相应措施。defget_me_dataraise'Nodataforyou'enda=get_me_datarescue$!puts"Executioncarrieson"pa#>>Executioncarrieson#>>#更现实的
最近因为项目需要，需要将Android手机系统自带的某个系统软件反编译并更改里面某个资源，并重新打包，签名生成新的自定义的apk，下面我来介绍一下我的实现过程。APK修改，分为以下几步：反编译解包,修改,重打包,修改签名等步骤。安卓apk修改准备工作1.系统配置好JavaJDK环境变量2.需要root权限的手机（针对系统自带apk,其他软件免root）3.Auto-Sign签名工具4.apktool工具安卓apk修改开始反编译本文拿Android系统里面的Settings.apk做demo,具体如何将apk获取出来在此就不过多介绍了，直接进入主题：按键win+R输入cmd，打开命令窗口，并将路
我在我正在处理的一些代码中发现了这一点。它旨在解决从磁盘读取key文件的要求。在生产环境中，key文件的内容位于环境变量中。旧代码:key=File.read('path/to/key.pem')新代码:key=File.read('|echo$KEY_VARIABLE')这是如何工作的？ 最佳答案 来自IOdocs:Astringstartingwith“|”indicatesasubprocess.Theremainderofthestringfollowingthe“|”isinvokedasaprocesswithappro
我今天看到了一个ruby代码片段。[1,2,3,4,5,6,7].inject(:+)=>28[1,2,3,4,5,6,7].inject(:*)=>5040这里的注入(inject)和之前看到的完全不一样，比如[1,2,3,4,5,6,7].inject{|sum,x|sum+x}请解释一下它是如何工作的？ 最佳答案 没有魔法，符号(方法)只是可能的参数之一。这是来自文档:#enum.inject(initial,sym)=>obj#enum.inject(sym)=>obj#enum.inject(initial){|mem