错误：任务“：openCVSamplefacedetection：compileArmDebugNdk”执行失败。
com.android.ide.common.internal.LoggedErrorException：无法运行命令：D:\OpenCV-2.4.10-android-sdk\android-ndk-r10d\ndk-build.cmd NDK_PROJECT_PATH=null APP_BUILD_SCRIPT=E:\android_project \CastorYan\AndroidStudioProjects\face-detection\openCVSamplefacedetection\build\intermediates\ndk\arm\debug\Android.mk APP_PLATFORM=android-14 NDK_OUT=E:\android_project\CastorYan\AndroidStudioProjects\face-detection\openCVSamplefacedetection\build\intermediates\ ndk\arm\debug\obj NDK_LIBS_OUT=E:\android_project\CastorYan\AndroidStudioProjects\face-detection\openCVSamplefacedetection\build\intermediates\ndk\arm\debug\lib APP_ABI=armeabi 错误代码：2 输出：make.exe：** * 没有制定目标的规则
E:\android_project\CastorYan\AndroidStudioProjects\face-detection\openCVSamplefacedetection\build\intermediates\ndk\arm\debug\obj/local/armeabi/objs/detection_based_tracker/E_\android_project\CastorYan\AndroidStudioProjects\face-detection\openCVSamplefacedetection\src\main\jni', needed byE:\android_project\CastorYan\AndroidStudioProjects\face-detection\openCVSamplefacedetection\build\intermediates\ndk\arm\debug\obj/local/armeabi/objs/detection_based_tracker/E_\android_project\CastorYan\AndroidStudioProjects\face-detection\openCVSamplefacedetection\src \main\jni\DetectionBasedTracker_jni.o'。停止。