ndk-build.cmd在汇编过程中失败(OPENCV脸检测)

Question

我知道有很多类似的话题，但它们都没有帮助，我想牢记这两天以上。我想运行面部检测样本，我卡在NDK build

上

application.mk

APP_STL := gnustl_static
APP_CPPFLAGS := -frtti -fexceptions
APP_ABI := armeabi-v7a
APP_PLATFORM := android-23

android.mk

LOCAL_PATH := $(call my-dir)
include $(CLEAR_VARS)
OPENCV_CAMERA_MODULES:=on
OPENCV_INSTALL_MODULES:=on
OPENCV_LIB_TYPE:=SHARED
include C:/Users/dpach/OpenCV-android-sdk/sdk/native/jni/OpenCV.mk
LOCAL_SRC_FILES  := DetectionBasedTracker_jni.cpp
LOCAL_C_INCLUDES += $(LOCAL_PATH)
LOCAL_LDLIBS     += -llog -ldl
LOCAL_MODULE     := detection_based_tracker
include $(BUILD_SHARED_LIBRARY)

app.gradle

apply plugin: 'com.android.application'
android {
    compileSdkVersion 23
    buildToolsVersion "23.0.3"
    defaultConfig {
        applicationId "threewe.testopencv"
        minSdkVersion 21
        targetSdkVersion 23
        versionCode 1
        versionName "1.0"
    }
    sourceSets.main {
        jniLibs.srcDir 'src/main/libs'
        jni.srcDirs = [] //disable automatic ndk-build call
    }
    task ndkBuild(type: Exec) {
        commandLine 'C:\Users\dpach\android-ndk-r12\ndk-build.cmd', '-C', file('jni').absolutePath
    }
    tasks.withType(JavaCompile) {
        compileTask -> compileTask.dependsOn ndkBuild
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}
dependencies {
    compile fileTree(include: ['*.jar'], dir: 'libs')
    compile 'com.android.support:appcompat-v7:23.4.0'
    compile 'com.android.support.constraint:constraint-layout:1.0.0-alpha2'
    compile project(':libraries:opencv')
}

错误

System nie moľe odnale«† okre?lonej ?cieľki.
make: *** [C:/Users/dpach/AndroidStudioProjects/TestOpenCv/app/obj/local/armeabi-v7a/objs/detection_based_tracker/DetectionBasedTracker_jni.o] Error 1
make: Leaving directory `C:/Users/dpach/AndroidStudioProjects/TestOpenCv/app/jni'
:app:ndkBuild FAILED
Error:Execution failed for task ':app:ndkBuild'.
> Process 'command 'C:Usersdpachandroid-ndk-r12ndk-build.cmd'' finished with non-zero exit value 2

错误的翻译："系统无法找到指定的路径'

我已经检查了路径，它甚至存在我从另一个项目中放置的文件，但是结果是相同的。我还尝试从控制台运行NDK-Build.cmd手动，但结果是相同的，因此这不是Android Studio问题。我不知道我还能做什么：（

//编辑

添加V=1参数

make: Entering directory `C:/Users/dpach/AndroidStudioProjects/TestOpenCv/app/jni'
[armeabi-v7a] "Compile++ thumb": "detection_based_tracker <= DetectionBasedTracker_jni.cpp"
C:/Users/dpach/android-ndk-r12/build//../toolchains/arm-linux-androideabi-4.9/prebuilt/windows-x86_64/bin/arm-linux-androideabi-g++ -MMD -MP -MF C:/Users/dpach/AndroidStudioProjects/TestOpenCv/app/obj/local/armeabi-v7a/objs/detection_based_tracker/DetectionBasedTracker_jni.o.d -fpic -ffunction-sections -funwind-tables -fstack-protector-strong -no-canonical-prefixes  -g -march=armv7-a -mfpu=vfpv3-d16 -mfloat-abi=softfp  -fno-exceptions -fno-rtti -mthumb -Os -DNDEBUG  -I"C:/Users/dpach/OpenCV-android-sdk/sdk/native/jni/include/opencv" -I"C:/Users/dpach/OpenCV-android-sdk/sdk/native/jni/include" -IC:/Users/dpach/AndroidStudioProjects/TestOpenCv/app/jni -IC:/Users/dpach/android-ndk-r12/build//../sources/cxx-stl/gnu-libstdc++/4.9/include -IC:/Users/dpach/android-ndk-r12/build//../sources/cxx-stl/gnu-libstdc++/4.9/libs/armeabi-v7a/include -IC:/Users/dpach/android-ndk-r12/build//../sources/cxx-stl/gnu-libstdc++/4.9/include/backward -IC:/Users/dpach/AndroidStudioProjects/TestOpenCv/app/jni -DANDROID -fPIC -DANDROID -fsigned-char -Wa,--noexecstack -Wformat -Werror=format-security    -frtti -fexceptions  -isystem C:/Users/dpach/android-ndk-r12/build//../platforms/android-23/arch-arm/usr/include -c  C:/Users/dpach/AndroidStudioProjects/TestOpenCv/app/jni/DetectionBasedTracker_jni.cpp -o C:/Users/dpach/AndroidStudioProjects/TestOpenCv/app/obj/local/armeabi-v7a/objs/detection_based_tracker/DetectionBasedTracker_jni.o 

Answer 1

这是NDK下载页面上的一个错误，请参阅您的问题真正打开。

您可以在GitHub上使用更频繁更新的Wiki页面。

在您的特定情况下，您在64位窗口上使用32位版本，这是次优的。您可以为操作系统下载最新的稳定版R12B。