【发布时间】：2019-02-04 11:50:00
【问题描述】：
我正在尝试构建 strongswan lib 但在 Windows 机器上。我遵循strongswan wiki 中的所有步骤，但是当我尝试构建项目时出现此错误。
org.gradle.api.tasks.TaskExecutionException: Execution failed for task ':app:buildNative'.
at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeActions(ExecuteActionsTaskExecuter.java:100)
at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.execute(ExecuteActionsTaskExecuter.java:70)
at org.gradle.api.internal.tasks.execution.OutputDirectoryCreatingTaskExecuter.execute(OutputDirectoryCreatingTaskExecuter.java:51)
at org.gradle.api.internal.tasks.execution.SkipUpToDateTaskExecuter.execute(SkipUpToDateTaskExecuter.java:62)
at org.gradle.api.internal.tasks.execution.ResolveTaskOutputCachingStateExecuter.execute(ResolveTaskOutputCachingStateExecuter.java:54)
at org.gradle.api.internal.tasks.execution.ValidatingTaskExecuter.execute(ValidatingTaskExecuter.java:60)
at org.gradle.api.internal.tasks.execution.SkipEmptySourceFilesTaskExecuter.execute(SkipEmptySourceFilesTaskExecuter.java:97)
at org.gradle.api.internal.tasks.execution.CleanupStaleOutputsExecuter.execute(CleanupStaleOutputsExecuter.java:87)
at org.gradle.api.internal.tasks.execution.ResolveTaskArtifactStateTaskExecuter.execute(ResolveTaskArtifactStateTaskExecuter.java:52)
at org.gradle.api.internal.tasks.execution.SkipTaskWithNoActionsExecuter.execute(SkipTaskWithNoActionsExecuter.java:52)
at org.gradle.api.internal.tasks.execution.SkipOnlyIfTaskExecuter.execute(SkipOnlyIfTaskExecuter.java:54)
at org.gradle.api.internal.tasks.execution.ExecuteAtMostOnceTaskExecuter.execute(ExecuteAtMostOnceTaskExecuter.java:43)
at org.gradle.api.internal.tasks.execution.CatchExceptionTaskExecuter.execute(CatchExceptionTaskExecuter.java:34)
at org.gradle.execution.taskgraph.DefaultTaskGraphExecuter$EventFiringTaskWorker$1.run(DefaultTaskGraphExecuter.java:248)
at org.gradle.internal.progress.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:336)
at org.gradle.internal.progress.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:328)
at org.gradle.internal.progress.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:199)
at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:110)
at org.gradle.execution.taskgraph.DefaultTaskGraphExecuter$EventFiringTaskWorker.execute(DefaultTaskGraphExecuter.java:241)
at org.gradle.execution.taskgraph.DefaultTaskGraphExecuter$EventFiringTaskWorker.execute(DefaultTaskGraphExecuter.java:230)
at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor$TaskExecutorWorker.processTask(DefaultTaskPlanExecutor.java:123)
at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor$TaskExecutorWorker.access$200(DefaultTaskPlanExecutor.java:79)
at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor$TaskExecutorWorker$1.execute(DefaultTaskPlanExecutor.java:104)
at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor$TaskExecutorWorker$1.execute(DefaultTaskPlanExecutor.java:98)
at org.gradle.execution.taskgraph.DefaultTaskExecutionPlan.execute(DefaultTaskExecutionPlan.java:626)
at org.gradle.execution.taskgraph.DefaultTaskExecutionPlan.executeWithTask(DefaultTaskExecutionPlan.java:581)
at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor$TaskExecutorWorker.run(DefaultTaskPlanExecutor.java:98)
at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:63)
at org.gradle.internal.concurrent.ManagedExecutorImpl$1.run(ManagedExecutorImpl.java:46)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at org.gradle.internal.concurrent.ThreadFactoryImpl$ManagedThreadRunnable.run(ThreadFactoryImpl.java:55)
at java.lang.Thread.run(Thread.java:745)
Caused by: org.gradle.process.internal.ExecException: A problem occurred starting process 'command 'C:\Users\kristiyan.varbanov\AppData\Local\Android\Sdk\ndk-bundle/ndk-build''
at org.gradle.process.internal.DefaultExecHandle.execExceptionFor(DefaultExecHandle.java:222)
at org.gradle.process.internal.DefaultExecHandle.setEndStateInfo(DefaultExecHandle.java:202)
at org.gradle.process.internal.DefaultExecHandle.failed(DefaultExecHandle.java:342)
at org.gradle.process.internal.ExecHandleRunner.run(ExecHandleRunner.java:86)
at org.gradle.internal.operations.BuildOperationIdentifierPreservingRunnable.run(BuildOperationIdentifierPreservingRunnable.java:39)
... 6 more
Caused by: net.rubygrapefruit.platform.NativeException: Could not start 'C:\Users\kristiyan.varbanov\AppData\Local\Android\Sdk\ndk-bundle/ndk-build'
at net.rubygrapefruit.platform.internal.DefaultProcessLauncher.start(DefaultProcessLauncher.java:27)
at net.rubygrapefruit.platform.internal.WindowsProcessLauncher.start(WindowsProcessLauncher.java:22)
at net.rubygrapefruit.platform.internal.WrapperProcessLauncher.start(WrapperProcessLauncher.java:36)
at org.gradle.process.internal.ExecHandleRunner.run(ExecHandleRunner.java:68)
... 7 more
Caused by: java.io.IOException: Cannot run program "C:\Users\kristiyan.varbanov\AppData\Local\Android\Sdk\ndk-bundle/ndk-build" (in directory "C:\Users\kristiyan.varbanov\Desktop\strongswan\src\frontends\android\app\src\main\jni"): CreateProcess error=2, The system cannot find the file specified
at java.lang.ProcessBuilder.start(ProcessBuilder.java:1048)
at net.rubygrapefruit.platform.internal.DefaultProcessLauncher.start(DefaultProcessLauncher.java:25)
... 10 more
Caused by: java.io.IOException: CreateProcess error=2, The system cannot find the file specified
at java.lang.ProcessImpl.create(Native Method)
at java.lang.ProcessImpl.<init>(ProcessImpl.java:386)
at java.lang.ProcessImpl.start(ProcessImpl.java:137)
at java.lang.ProcessBuilder.start(ProcessBuilder.java:1029)
... 11 more
我看到问题是找不到ndk-build，但我确定ndk和sdk目录是正确的，请仔细检查。
这是我的 build.gradle 文件
apply plugin: 'com.android.application'
android {
compileSdkVersion 26
buildToolsVersion '27.0.3'
defaultConfig {
applicationId "org.strongswan.android"
minSdkVersion 15
targetSdkVersion 26
versionCode 62
versionName "2.0.2"
}
sourceSets.main {
jni.srcDirs = [] // disables the default ndk-build call (with on-the-fly Android.mk files)
jniLibs.srcDir 'src/main/libs'
}
task buildNative(type: Exec) {
workingDir 'src/main/jni'
commandLine "${android.ndkDirectory}/ndk-build", '-j', Runtime.runtime.availableProcessors()
}
task cleanNative(type: Exec) {
workingDir 'src/main/jni'
commandLine "${android.ndkDirectory}/ndk-build", 'clean'
}
tasks.withType(JavaCompile) {
compileTask -> compileTask.dependsOn buildNative
options.compilerArgs << "-Xlint:unchecked" << "-Xlint:deprecation"
}
clean.dependsOn 'cleanNative'
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.txt'
}
}
compileOptions {
targetCompatibility 1.8
sourceCompatibility 1.8
}
}
dependencies {
implementation 'com.android.support:appcompat-v7:26.0.2'
implementation 'com.android.support:design:26.0.2'
implementation 'com.android.support:preference-v7:26.0.2'
implementation 'com.android.support:support-v4:26.0.2'
testImplementation 'junit:junit:4.12'
}
编辑：
我看到问题可能是
commandLine "${android.ndkDirectory}/ndk-build.cmd", '-C', Runtime.runtime.availableProcessors()
ndk-build 必须是 ndk-build.cmd 因为我使用的是 windows 机器。但是当我改变这一行时，我得到了这个错误：
Caused by: org.gradle.process.internal.ExecException: Process 'command 'C:\Users\kristiyan.varbanov\AppData\Local\Android\Sdk\ndk-bundle/ndk-build.cmd'' finished with non-zero exit value 2
【问题讨论】：
-
是时候在 Android Studio 3.2 及更高版本中实现内置 C++ 支持了。
标签： android android-studio android-ndk java-native-interface ndk-build