Question

我无法让我的NDK在Android Studio中正确编译。每当我尝试运行编译时，我都会收到以下错误。

错误：任务'：app：ndkBuild'的执行失败。启动进程'命令'ndk-build.cmd''
时出现问题

我有以下设置

enter image description here

我的build.gradle文件如下。

import org.apache.tools.ant.taskdefs.condition.Os

apply plugin: 'com.android.application'

android {
    compileSdkVersion 21
    buildToolsVersion "21.1.2"

    defaultConfig {
        applicationId "edu.uky.cs.www.diagramaphone"
        minSdkVersion 14
        targetSdkVersion 21
        versionCode 1
        versionName "1.0"

        sourceSets.main{
            jniLibs.srcDir 'src/main/libs'
            jni.srcDirs = [] //disable automatic ndk-build call
        }
        project.ext.versionCodes = ['armeabi':1, 'armeabi-v7a':2, 'arm64-v8a':3, 'mips':5, 'mips64':6, 'x86':8, 'x86_64':9] //versionCode digit for each supported ABI, with 64bit>32bit and x86>armeabi-*
        android.applicationVariants.all { variant ->
            // assign different version code for each output
            variant.outputs.each { output ->
                output.versionCodeOverride =
                        project.ext.versionCodes.get(output.getFilter(com.android.build.OutputFile.ABI), 0) * 1000000 + defaultConfig.versionCode
            }
        }
        // call regular ndk-build(.cmd) script from app directory
        task ndkBuild(type: Exec) {
            if (Os.isFamily(Os.FAMILY_WINDOWS)) {
                commandLine 'ndk-build.cmd', '-C', file('src/main').absolutePath
            } else {
                commandLine 'ndk-build', '-C', file('src/main').absolutePath
            }
        }
        tasks.withType(JavaCompile) {
            compileTask -> compileTask.dependsOn ndkBuild
        }
        //ndk {
          //  moduleName "shape-detect"
            //cFlags "-DANDROID_NDK -D_DEBUG DNULL=0" // Define some macros
            //ldLibs "EGL", "GLESv3", "dl", "log"         // Link with these libraries!
            //stl "stlport_shared"                        // Use shared stlport library
        //}

    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    compile fileTree(include: ['*.jar'], dir: 'libs')
    compile 'com.android.support:appcompat-v7:21.0.3'
    compile project(':libraries:tess-two')
    compile project(':libraries:opencv')
}

此时我迷失了什么是错的。我已经按照几个教程尝试设置NDK正常工作，但我不断收到上面显示的错误。这里的任何人都可以提供一些关于我需要做什么的反馈，以便让NDK编译吗？

编辑：这是发生的整个消息。

Information:Gradle tasks [:app:assembleDebug]
:app:preBuild UP-TO-DATE
:app:preDebugBuild UP-TO-DATE
:app:compileDebugNdk UP-TO-DATE
:app:checkDebugManifest
:app:preReleaseBuild UP-TO-DATE
:libraries:opencv:compileLint
:libraries:opencv:copyReleaseLint UP-TO-DATE
:libraries:opencv:mergeReleaseProguardFiles UP-TO-DATE
:libraries:opencv:preBuild UP-TO-DATE
:libraries:opencv:preReleaseBuild UP-TO-DATE
:libraries:opencv:checkReleaseManifest
:libraries:opencv:prepareReleaseDependencies
:libraries:opencv:compileReleaseAidl UP-TO-DATE
:libraries:opencv:compileReleaseRenderscript UP-TO-DATE
:libraries:opencv:generateReleaseBuildConfig UP-TO-DATE
:libraries:opencv:generateReleaseAssets UP-TO-DATE
:libraries:opencv:mergeReleaseAssets UP-TO-DATE
:libraries:opencv:generateReleaseResValues UP-TO-DATE
:libraries:opencv:generateReleaseResources UP-TO-DATE
:libraries:opencv:packageReleaseResources UP-TO-DATE
:libraries:opencv:processReleaseManifest UP-TO-DATE
:libraries:opencv:processReleaseResources UP-TO-DATE
:libraries:opencv:generateReleaseSources UP-TO-DATE
:libraries:opencv:compileReleaseJava UP-TO-DATE
:libraries:opencv:processReleaseJavaRes UP-TO-DATE
:libraries:opencv:packageReleaseJar UP-TO-DATE
:libraries:opencv:compileReleaseNdk UP-TO-DATE
:libraries:opencv:packageReleaseJniLibs UP-TO-DATE
:libraries:opencv:packageReleaseLocalJar UP-TO-DATE
:libraries:opencv:packageReleaseRenderscript UP-TO-DATE
:libraries:opencv:bundleRelease UP-TO-DATE
:libraries:tess-two:compileLint
:libraries:tess-two:copyReleaseLint UP-TO-DATE
:libraries:tess-two:mergeReleaseProguardFiles UP-TO-DATE
:libraries:tess-two:preBuild UP-TO-DATE
:libraries:tess-two:preReleaseBuild UP-TO-DATE
:libraries:tess-two:checkReleaseManifest
:libraries:tess-two:prepareReleaseDependencies
:libraries:tess-two:compileReleaseAidl UP-TO-DATE
:libraries:tess-two:compileReleaseRenderscript UP-TO-DATE
:libraries:tess-two:generateReleaseBuildConfig UP-TO-DATE
:libraries:tess-two:generateReleaseAssets UP-TO-DATE
:libraries:tess-two:mergeReleaseAssets UP-TO-DATE
:libraries:tess-two:generateReleaseResValues UP-TO-DATE
:libraries:tess-two:generateReleaseResources UP-TO-DATE
:libraries:tess-two:packageReleaseResources UP-TO-DATE
:libraries:tess-two:processReleaseManifest UP-TO-DATE
:libraries:tess-two:processReleaseResources UP-TO-DATE
:libraries:tess-two:generateReleaseSources UP-TO-DATE
:libraries:tess-two:compileReleaseJava UP-TO-DATE
:libraries:tess-two:processReleaseJavaRes UP-TO-DATE
:libraries:tess-two:packageReleaseJar UP-TO-DATE
:libraries:tess-two:compileReleaseNdk UP-TO-DATE
:libraries:tess-two:packageReleaseJniLibs UP-TO-DATE
:libraries:tess-two:packageReleaseLocalJar UP-TO-DATE
:libraries:tess-two:packageReleaseRenderscript UP-TO-DATE
:libraries:tess-two:bundleRelease UP-TO-DATE
:app:prepareComAndroidSupportAppcompatV72103Library UP-TO-DATE
:app:prepareComAndroidSupportSupportV42103Library UP-TO-DATE
:app:prepareDiagramaphoneLibrariesOpencvUnspecifiedLibrary UP-TO-DATE
:app:prepareDiagramaphoneLibrariesTessTwoUnspecifiedLibrary 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:ndkBuild FAILED
Error:Execution failed for task ':app:ndkBuild'.
> A problem occurred starting process 'command 'ndk-build.cmd''
Information:BUILD FAILED
Information:Total time: 2.226 secs
Information:1 error
Information:0 warnings
Information:See complete output in console

Answer 1

我遇到了这种问题。首先，您必须在应用的local.properties中提供NDK路径。

e.g。 ndk.dir=/home/user/bin/android_ndk/android-ndk-r10e

然后在我的build.gradle文件中，我有类似的东西来调用ndk build命令。

commandLine 'ndk-build', '-C', file('src/main/jni').absolutePath

我将其更改为

commandLine '/home/user/bin/android_ndk/android-ndk-r10e/ndk-build', '-C', file('src/main/jni').absolutePath

我给出了NDK构建的完整路径。希望它会帮助你。

Answer 2

试试这个

commandLine'E:\\Android\\ndk\\ndkbuild.cmd','-C',file('src/main/jni').absolutePath

用您的ndk路径替换（E：\\ Android \\ ndk \\）。

Answer 3

在android studio中，File-＆gt; Project Structure - ＆gt; SDK位置，设置计算机的Android NDK位置。

谢谢！

Answer 4

以防万一，如果它可以帮助其他人：

在环境变量中提供NDK路径（ndkBuild.cmd所在的父文件夹）也可以解决问题。

或者，如果您使用Linux或@Nooh的Windows答案，可以按照@Hayk的回答。

我的观察：

因为，如果我把直接的NDK路径解决了我在Android Studio中的问题有时但是再次无法构建并抛出错误然后我将路径放在环境变量中并且项目构建成功。

在Windows的情况下，必须放*

NDK-build.cmd

* 仅适用于Linux环境*

NDK-构建

*

Answer 5

它很容易安卓工作室2.3.3。只需按照文件 - ＆gt;项目结构 - ＆gt; android NDK位置 - ＆gt;单击下载按钮。安装后ndk解决了我的问题。

Answer 6

将ndk路径（C：\ android-ndk-r10e）添加到环境变量（系统变量）中的路径变量值，该变量离开了我的＆＃34;路径＆＃34;像这样的变量

设置 - ＆gt;系统 - ＆gt; Advenced System Settings - ＆gt;系统变量

然后打开命令窗口（cmd）。使用cd命令输入项目文件夹的位置并写入＆＃34; ndk-build＆＃34;然后按回车。

Answer 7

首先，您必须检查项目中的local.properties文件。在local.properties中检查ndk路径。看起来像这样的 ndk.dir = d：\\ SDK \\ NDK束

现在转到build.gradle（模块库）并找到 getNdkPath（）。它将返回连接 ndk-build

的ndk路径位置

更改 ndk-build - ＆gt;的 NDK-build.cmd 即可。它看起来像这样：

希望它会对你有所帮助！

Answer 8

接受的答案还可以，但是由于android工具gradle插件2.3：No sdkHandler field in LibraryPlugin after updating to build tools 2.3.0，它不起作用，所以你需要使用project.android.ndkDirectory.absolutePath变量，即：

task ndkBuild(type: Exec) {
    commandLine project.android.ndkDirectory.absolutePath + '/ndk-build', '-C', file('src/main/jni/').absolutePath
}

或者，您可以直接从local.properties中读取ndk.dir：https://stackoverflow.com/a/32649204/1028256

Answer 9

在下面的这些链接中查看。

您必须知道NDK通常位于的路径

库/ Android / sdk / ndk / <版本号>

https://developer.android.com/studio/releases?utm_source=android-studio#4-0-0-ndk-dir

和

https://developer.android.com/studio/projects/install-ndk

和

https://wiki.appcelerator.org/display/guides2/Installing+the+Android+NDK

NDKBuild失败

9 个答案: