当我运行我的应用程序时，我得到了这个： 执行任务：[：app：assembleDebug]
Configuration on demand is an incubating feature.
:app:preBuild
:app:compileDebugNdk UP-TO-DATE
:app:preDebugBuild
:app:checkDebugManifest
:app:preReleaseBuild
:app:prepareComAndroidSupportAppcompatV72100Library UP-TO-DATE
:app:prepareComAndroidSupportSupportV42103Library UP-TO-DATE
:app:prepareDebugDependencies
:app:compileDebugAidl UP-TO-DATE
:app:compileDebugRenderscript UP-TO-DATE
:app:generateDebugBuildConfig UP-TO-DATE
:app:generateDebugAssets UP-TO-DATE
:app:mergeDebugAssets UP-TO-DATE
:app:generateDebugResValues UP-TO-DATE
:app:generateDebugResources UP-TO-DATE
:app:mergeDebugResources UP-TO-DATE
:app:processDebugManifest UP-TO-DATE
:app:processDebugResources UP-TO-DATE
:app:generateDebugSources UP-TO-DATE
:app:compileDebugJava UP-TO-DATE
:app:preDexDebug
The system cannot find the path specified.
The system cannot find the path specified.
The system cannot find the path specified.
The system cannot find the path specified.
The system cannot find the path specified.
The system cannot find the path specified.
The system cannot find the path specified.
The system cannot find the path specified.
The system cannot find the path specified.
The system cannot find the path specified.
The system cannot find the path specified.
The system cannot find the path specified.`
`FAILED`
`FAILURE: Build failed with an exception.`
`* What went wrong:`
`Execution failed for task ':app:preDexDebug'.`
>` com.android.ide.common.internal.LoggedErrorException: Failed to run command:
C:\Users\Ashley Windows 8\Desktop\adt-bundle-windows-x86_64-20131030\sdk\build-tools\21.1.2\dx.bat --dex --output C:\Users\Ashley Windows 8\Desktop\New folder\DriversApp2\app\build\intermediates\pre-dexed\debug\support-annotations-21.0.3-abef87d83d59f78493cff8c53a71ebf23a73986e.jar C:\Users\Ashley Windows 8\Desktop\adt-bundle-windows-x86_64-20131030\sdk\extras\android\m2repository\com\android\support\support-annotations\21.0.3\support-annotations-21.0.3.jar`
`Error Code:
1
Output:
The system cannot find the path specified.
The system cannot find the path specified.
The system cannot find the path specified.`
* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.
BUILD FAILED
Total time: 6.951 secs`
我的build.gradle：
apply plugin: 'android'
android {
compileSdkVersion 21
buildToolsVersion '21.1.2'
defaultConfig {
minSdkVersion 14
targetSdkVersion 21
versionCode 1
versionName '1.0'
}
compileOptions {
sourceCompatibility JavaVersion.VERSION_1_5
targetCompatibility JavaVersion.VERSION_1_7
}
buildTypes {
release {
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.txt'
}
debug {
debuggable true
}
}
productFlavors {
}
}
dependencies {
// You must install or update the Support Repository through the SDK manager to use this dependency.
compile fileTree(dir: 'libs', include: ['*.jar'])
compile 'com.android.support:appcompat-v7:21.0.0'
compile 'com.android.support:support-v4:21.0.3'
}
我有一个关于Android Studio尝试启动文件的错误，但我不得不删除它，因为它与Android无关 有人可以帮我解决这个问题吗？
当我运行gradlew clean assemble --stacktrace
时 C:\Users\Ashley Windows 8\Desktop\New folder\DriversApp2>gradlew assemble --stacktrace
`:app:preBuild
:app:compileDebugNdk UP-TO-DATE
:app:preDebugBuild
:app:checkDebugManifest
:app:preReleaseBuild
:app:prepareComAndroidSupportAppcompatV72100Library UP-TO-DATE
:app:prepareComAndroidSupportSupportV42103Library UP-TO-DATE
:app:prepareDebugDependencies
:app:compileDebugAidl UP-TO-DATE
:app:compileDebugRenderscript UP-TO-DATE
:app:generateDebugBuildConfig UP-TO-DATE
:app:generateDebugAssets UP-TO-DATE
:app:mergeDebugAssets UP-TO-DATE
:app:generateDebugResValues UP-TO-DATE
:app:generateDebugResources UP-TO-DATE
:app:mergeDebugResources UP-TO-DATE
:app:processDebugManifest UP-TO-DATE
:app:processDebugResources UP-TO-DATE
:app:generateDebugSources UP-TO-DATE
:app:compileDebugJava UP-TO-DATE
:app:preDexDebug `
`The system cannot find the path specified.
The system cannot find the path specified.
The system cannot find the path specified.
The system cannot find the path specified.
The system cannot find the path specified.
The system cannot find the path specified.
The system cannot find the path specified.
The system cannot find the path specified.
The system cannot find the path specified.
The system cannot find the path specified.
The system cannot find the path specified.
The system cannot find the path specified.`
`:app:preDexDebug FAILED `
`FAILURE: Build failed with an exception.`
* What went wrong:
Execution failed for task ':app:preDexDebug'.
> com.android.ide.common.internal.LoggedErrorException: Failed to run command:
C:\Users\Ashley Windows 8\Desktop\adt-bundle-windows-x86_64-20131030\sdk\build-tools\21.1.2\dx.b
at --dex --output C:\Users\Ashley Windows 8\Desktop\New folder\DriversApp2\app\build\intermediates\pre-d
exed\debug\support-annotations-21.0.3-abef87d83d59f78493cff8c53a71ebf23a73986e.jar C:\Users\Ashley Windo
ws 8\Desktop\adt-bundle-windows-x86_64-20131030\sdk\extras\android\m2repository\com\android\support\supp
ort-annotations\21.0.3\support-annotations-21.0.3.jar
Error Code:
1
Output:
The system cannot find the path specified.
The system cannot find the path specified.
The system cannot find the path specified.
* Try:
Run with --info or --debug option to get more log output.
* Exception is:
> > org.gradle.api.tasks.TaskExecutionException: Execution failed for task ':app:preDexDebug'.
> at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeActions(ExecuteActi
> onsTaskExecuter.java:69)
> at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.execute(ExecuteActionsTask
> Executer.java:46)
> at org.gradle.api.internal.tasks.execution.PostExecutionAnalysisTaskExecuter.execute(PostExecuti
> onAnalysisTaskExecuter.java:35)
> at org.gradle.api.internal.tasks.execution.SkipUpToDateTaskExecuter.execute(SkipUpToDateTaskExec
> uter.java:64)
> at org.gradle.api.internal.tasks.execution.ValidatingTaskExecuter.execute(ValidatingTaskExecuter
> .java:58)
> at org.gradle.api.internal.tasks.execution.SkipEmptySourceFilesTaskExecuter.execute(SkipEmptySou
> rceFilesTaskExecuter.java:42)
> at org.gradle.api.internal.tasks.execution.SkipTaskWithNoActionsExecuter.execute(SkipTaskWithNoA
> ctionsExecuter.java:52)
> at org.gradle.api.internal.tasks.execution.SkipOnlyIfTaskExecuter.execute(SkipOnlyIfTaskExecuter
> .java:53)
> at org.gradle.api.internal.tasks.execution.ExecuteAtMostOnceTaskExecuter.execute(ExecuteAtMostOn
> ceTaskExecuter.java:43) at
> org.gradle.api.internal.AbstractTask.executeWithoutThrowingTaskFailure(AbstractTask.java:305)
> at
> org.gradle.execution.taskgraph.AbstractTaskPlanExecutor$TaskExecutorWorker.executeTask(Abstra
> ctTaskPlanExecutor.java:79)
> at org.gradle.execution.taskgraph.AbstractTaskPlanExecutor$TaskExecutorWorker.processTask(Abstra
> ctTaskPlanExecutor.java:63)
> at org.gradle.execution.taskgraph.AbstractTaskPlanExecutor$TaskExecutorWorker.run(AbstractTaskPl
> anExecutor.java:51)
> at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor.process(DefaultTaskPlanExecutor.java:2
> 3)
> at org.gradle.execution.taskgraph.DefaultTaskGraphExecuter.execute(DefaultTaskGraphExecuter.java
> :88)
> at org.gradle.execution.SelectedTaskExecutionAction.execute(SelectedTaskExecutionAction.java:29)
>
> at org.gradle.execution.DefaultBuildExecuter.execute(DefaultBuildExecuter.java:62)
> at org.gradle.execution.DefaultBuildExecuter.access$200(DefaultBuildExecuter.java:23)
> at org.gradle.execution.DefaultBuildExecuter$2.proceed(DefaultBuildExecuter.java:68)
> at org.gradle.execution.DryRunBuildExecutionAction.execute(DryRunBuildExecutionAction.java:32)
> at org.gradle.execution.DefaultBuildExecuter.execute(DefaultBuildExecuter.java:62)
> at org.gradle.execution.DefaultBuildExecuter.execute(DefaultBuildExecuter.java:55)
> at org.gradle.initialization.DefaultGradleLauncher.doBuildStages(DefaultGradleLauncher.java:149)
>
> at org.gradle.initialization.DefaultGradleLauncher.doBuild(DefaultGradleLauncher.java:106)
> at org.gradle.initialization.DefaultGradleLauncher.run(DefaultGradleLauncher.java:86)
> at org.gradle.launcher.exec.InProcessBuildActionExecuter$DefaultBuildController.run(InProcessBui
> ldActionExecuter.java:80)
> at org.gradle.launcher.cli.ExecuteBuildAction.run(ExecuteBuildAction.java:33)
> at org.gradle.launcher.cli.ExecuteBuildAction.run(ExecuteBuildAction.java:24)
> at org.gradle.launcher.exec.InProcessBuildActionExecuter.execute(InProcessBuildActionExecuter.ja
> va:36)
> at org.gradle.launcher.exec.InProcessBuildActionExecuter.execute(InProcessBuildActionExecuter.ja
> va:26)
> at org.gradle.launcher.cli.RunBuildAction.run(RunBuildAction.java:51)
> at org.gradle.internal.Actions$RunnableActionAdapter.execute(Actions.java:171)
> at org.gradle.launcher.cli.CommandLineActionFactory$ParseAndBuildAction.execute(CommandLineActio
> nFactory.java:237)
> at org.gradle.launcher.cli.CommandLineActionFactory$ParseAndBuildAction.execute(CommandLineActio
> nFactory.java:210)
> at org.gradle.launcher.cli.JavaRuntimeValidationAction.execute(JavaRuntimeValidationAction.java:
> 35)
> at org.gradle.launcher.cli.JavaRuntimeValidationAction.execute(JavaRuntimeValidationAction.java:
> 24)
> at org.gradle.launcher.cli.CommandLineActionFactory$WithLogging.execute(CommandLineActionFactory
> .java:206)
> at org.gradle.launcher.cli.CommandLineActionFactory$WithLogging.execute(CommandLineActionFactory
> .java:169)
> at org.gradle.launcher.cli.ExceptionReportingAction.execute(ExceptionReportingAction.java:33)
> at org.gradle.launcher.cli.ExceptionReportingAction.execute(ExceptionReportingAction.java:22)
> at org.gradle.launcher.Main.doAction(Main.java:33)
> at org.gradle.launcher.bootstrap.EntryPoint.run(EntryPoint.java:45)
> at org.gradle.launcher.bootstrap.ProcessBootstrap.runNoExit(ProcessBootstrap.java:54)
> at org.gradle.launcher.bootstrap.ProcessBootstrap.run(ProcessBootstrap.java:35)
> at org.gradle.launcher.GradleMain.main(GradleMain.java:23)
> at org.gradle.wrapper.BootstrapMainStarter.start(BootstrapMainStarter.java:33)
> at org.gradle.wrapper.WrapperExecutor.execute(WrapperExecutor.java:130)
> at org.gradle.wrapper.GradleWrapperMain.main(GradleWrapperMain.java:48)
Caused by: org.gradle.internal.UncheckedException: com.android.ide.common.internal.LoggedErrorException:
Failed to run command:
> C:\Users\Ashley Windows
> 8\Desktop\adt-bundle-windows-x86_64-20131030\sdk\build-tools\21.1.2\dx.b
> at --dex --output C:\Users\Ashley Windows 8\Desktop\New
> folder\DriversApp2\app\build\intermediates\pre-d
> exed\debug\support-annotations-21.0.3-abef87d83d59f78493cff8c53a71ebf23a73986e.jar
> C:\Users\Ashley Windo ws
> 8\Desktop\adt-bundle-windows-x86_64-20131030\sdk\extras\android\m2repository\com\android\support\supp
> ort-annotations\21.0.3\support-annotations-21.0.3.jar
>
> Error Code:
> 1 Output:
> The system cannot find the path specified.
> The system cannot find the path specified.
> The system cannot find the path specified.
>
> at org.gradle.internal.UncheckedException.throwAsUncheckedException(UncheckedException.java:39)
> at org.gradle.internal.reflect.JavaMethod.invoke(JavaMethod.java:66)
> at org.gradle.api.internal.project.taskfactory.AnnotationProcessingTaskFactory$IncrementalTaskAc
> tion.doExecute(AnnotationProcessingTaskFactory.java:235)
> at org.gradle.api.internal.project.taskfactory.AnnotationProcessingTaskFactory$StandardTaskActio
> n.execute(AnnotationProcessingTaskFactory.java:211)
> at org.gradle.api.internal.project.taskfactory.AnnotationProcessingTaskFactory$IncrementalTaskAc
> tion.execute(AnnotationProcessingTaskFactory.java:222)
> at org.gradle.api.internal.project.taskfactory.AnnotationProcessingTaskFactory$StandardTaskActio
> n.execute(AnnotationProcessingTaskFactory.java:200)
> at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeAction(ExecuteActio
> nsTaskExecuter.java:80)
> at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeActions(ExecuteActi
> onsTaskExecuter.java:61)
> ... 47 more Caused by: com.android.ide.common.internal.LoggedErrorException: Failed to run
> command:
> C:\Users\Ashley Windows 8\Desktop\adt-bundle-windows-x86_64-20131030\sdk\build-tools\21.1.2\dx.b
> at --dex --output C:\Users\Ashley Windows 8\Desktop\New
> folder\DriversApp2\app\build\intermediates\pre-d
> exed\debug\support-annotations-21.0.3-abef87d83d59f78493cff8c53a71ebf23a73986e.jar
> C:\Users\Ashley Windo ws
> 8\Desktop\adt-bundle-windows-x86_64-20131030\sdk\extras\android\m2repository\com\android\support\supp
> ort-annotations\21.0.3\support-annotations-21.0.3.jar Error Code:
> 1 Output:
> The system cannot find the path specified.
> The system cannot find the path specified.
> The system cannot find the path specified.
>
> at com.android.ide.common.internal.CommandLineRunner.runCmdLine(CommandLineRunner.java:123)
> at com.android.ide.common.internal.CommandLineRunner.runCmdLine(CommandLineRunner.java:96)
> at com.android.ide.common.internal.CommandLineRunner.runCmdLine(CommandLineRunner.java:76)
> at com.android.builder.core.AndroidBuilder.preDexLibrary(AndroidBuilder.java:1339)
> at com.android.builder.internal.compiler.PreDexCache.preDexLibrary(PreDexCache.java:119)
> at com.android.builder.core.AndroidBuilder.preDexLibrary(AndroidBuilder.java:1273)
> at com.android.builder.core.AndroidBuilder$preDexLibrary$3.call(Unknown
> Source)
> at com.android.build.gradle.tasks.PreDex$PreDexTask.call(PreDex.groovy:148)
> at com.android.build.gradle.tasks.PreDex$PreDexTask.call(PreDex.groovy)
BUILD FAILED
Total time: 36.434 secs
FAILURE: Build failed with an exception.
* What went wrong:
java.lang.NullPointerException (no error message)
* Try:
Run with --info or --debug option to get more log output.
* Exception is:
> java.lang.NullPointerException
> at com.android.builder.internal.compiler.PreDexCache.createItemNode(PreDexCache.java:189)
> at com.android.builder.internal.compiler.PreDexCache.createItemNode(PreDexCache.java:60)
> at com.android.builder.internal.compiler.PreProcessCache.saveItems(PreProcessCache.java:486)
> at com.android.builder.internal.compiler.PreProcessCache.clear(PreProcessCache.java:375)
> at com.android.builder.internal.compiler.PreProcessCache$clear$0.call(Unknown
> Source)
> at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:45)
> at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:108)
> at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:120)
> at com.android.build.gradle.BasePlugin$_configureProject_closure1.doCall(BasePlugin.groovy:318)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
> at java.lang.reflect.Method.invoke(Unknown Source)
> at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:90)
> at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:324)
> at org.codehaus.groovy.runtime.metaclass.ClosureMetaClass.invokeMethod(ClosureMetaClass.java:278
> )
> at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1016)
> at groovy.lang.Closure.call(Closure.java:423)
> at org.gradle.listener.ClosureBackedMethodInvocationDispatch.dispatch(ClosureBackedMethodInvocat
> ionDispatch.java:40)
> at org.gradle.listener.ClosureBackedMethodInvocationDispatch.dispatch(ClosureBackedMethodInvocat
> ionDispatch.java:25)
> at org.gradle.listener.BroadcastDispatch.dispatch(BroadcastDispatch.java:83)
> at org.gradle.listener.BroadcastDispatch.dispatch(BroadcastDispatch.java:31)
> at org.gradle.messaging.dispatch.ProxyDispatchAdapter$DispatchingInvocationHandler.invoke(ProxyD
> ispatchAdapter.java:93)
> at com.sun.proxy.$Proxy12.buildFinished(Unknown Source)
> at org.gradle.initialization.DefaultGradleLauncher.doBuild(DefaultGradleLauncher.java:111)
> at org.gradle.initialization.DefaultGradleLauncher.run(DefaultGradleLauncher.java:86)
> at org.gradle.launcher.exec.InProcessBuildActionExecuter$DefaultBuildController.run(InProcessBui
> ldActionExecuter.java:80)
> at org.gradle.launcher.cli.ExecuteBuildAction.run(ExecuteBuildAction.java:33)
> at org.gradle.launcher.cli.ExecuteBuildAction.run(ExecuteBuildAction.java:24)
> at org.gradle.launcher.exec.InProcessBuildActionExecuter.execute(InProcessBuildActionExecuter.ja
> va:36)
> at org.gradle.launcher.exec.InProcessBuildActionExecuter.execute(InProcessBuildActionExecuter.ja
> va:26)
> at org.gradle.launcher.cli.RunBuildAction.run(RunBuildAction.java:51)
> at org.gradle.internal.Actions$RunnableActionAdapter.execute(Actions.java:171)
> at org.gradle.launcher.cli.CommandLineActionFactory$ParseAndBuildAction.execute(CommandLineActio
> nFactory.java:237)
> at org.gradle.launcher.cli.CommandLineActionFactory$ParseAndBuildAction.execute(CommandLineActio
> nFactory.java:210)
> at org.gradle.launcher.cli.JavaRuntimeValidationAction.execute(JavaRuntimeValidationAction.java:
> 35)
> at org.gradle.launcher.cli.JavaRuntimeValidationAction.execute(JavaRuntimeValidationAction.java:
> 24)
> at org.gradle.launcher.cli.CommandLineActionFactory$WithLogging.execute(CommandLineActionFactory
> .java:206)
> at org.gradle.launcher.cli.CommandLineActionFactory$WithLogging.execute(CommandLineActionFactory
> .java:169)
> at org.gradle.launcher.cli.ExceptionReportingAction.execute(ExceptionReportingAction.java:33)
> at org.gradle.launcher.cli.ExceptionReportingAction.execute(ExceptionReportingAction.java:22)
> at org.gradle.launcher.Main.doAction(Main.java:33)
> at org.gradle.launcher.bootstrap.EntryPoint.run(EntryPoint.java:45)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
> at java.lang.reflect.Method.invoke(Unknown Source)
> at org.gradle.launcher.bootstrap.ProcessBootstrap.runNoExit(ProcessBootstrap.java:54)
> at org.gradle.launcher.bootstrap.ProcessBootstrap.run(ProcessBootstrap.java:35)
> at org.gradle.launcher.GradleMain.main(GradleMain.java:23)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
> at java.lang.reflect.Method.invoke(Unknown Source)
> at org.gradle.wrapper.BootstrapMainStarter.start(BootstrapMainStarter.java:33)
> at org.gradle.wrapper.WrapperExecutor.execute(WrapperExecutor.java:130)
> at org.gradle.wrapper.GradleWrapperMain.main(GradleWrapperMain.java:48)
答案 0 :(得分：0)
日志输出表示您没有安装Android build-tools 21。如果没有看到您的build.gradle以及您下载的内容，就很难确定。
打开你的sdk经理，并确保你安装了最新的Android的构建工具21。清洁并再次建造。
展开：
我有一个关于Android Studio尝试启动文件的错误，但由于它与Android无关，我不得不将其删除
清洁＆gt; Gradle Sync＆gt;构建
尝试添加你的build.gradle dependancies：
compile 'com.android.support:support-annotations:20.0.0'
答案 1 :(得分：0)
看看这是否解决了您的问题
在\ sdk \ android-sdk \ tools \ lib \ find_java.bat中
替换线
find /i "x86" > NUL && set arch_ext=32 || set arch_ext=64
与
find /i "x86" > NUL && set arch_ext=32||set arch_ext=64
Ref Source回复日期为2014年12月10日