Question

我需要你的帮助，因为它让我发疯。是什么导致我的错误？

错误是

"jni/algorithm.cpp:4:33: fatal error: opencv2/core/core.hpp: No such file or directory  #include <opencv2/core/core.hpp>
                                 ^ compilation terminated. make: *** [obj/local/arm64-v8a/objs/algorithm/algorithm.o] Error 1"

我的algorithm.cpp是：

#include <jni.h>
#include <string.h>
#include <opencv2/core/core.hpp>
#include <opencv2/imgproc/imgproc.hpp>
#include <opencv2/features2d/features2d.hpp>
#include "opencv2/highgui/highgui.hpp"
#include "opencv2/imgproc/imgproc_c.h"

using namespace std;
using namespace cv;

extern "C"
{
    JNIEXPORT jlong JNICALL Java_com_example_hematoma_MainActivity_fce(JNIEnv *env, jobject obj, jlong matimage)
          {
              Mat *jni_image  = (Mat*) matimage;

              return (jlong)jni_image;

          }
}

我的Android.mk是：

LOCAL_PATH := $(call my-dir)

include /home/nemesis/adt-bundle-linux-x86_64-20140702/OpenCV-2.4.10-android-sdk/sdk/native/jni/OpenCV.mk

include $(CLEAR_VARS)
LOCAL_MODULE := algorithm
LOCAL_SRC_FILES := algorithm.cpp

LOCAL_C_INCLUDE := /home/nemesis/adt-bundle-linux-x86_64-20140702/OpenCV-2.4.10-android-sdk/sdk/native/jni/include/opencv2/core/core.hpp
LOCAL_C_INCLUDE += /home/nemesis/adt-bundle-linux-x86_64-20140702/OpenCV-2.4.10-android-sdk/sdk/native/jni/include/
include $(BUILD_SHARED_LIBRARY)

当ndk尝试构建.so

时发生错误

提前致谢。

Answer 1

LOCAL_C_INCLUDE := /home/nemesis/adt-bundle-linux-x86_64-20140702/OpenCV-2.4.10-android-sdk/sdk/native/jni/include/opencv2

应该是

LOCAL_C_INCLUDES := /home/nemesis/adt-bundle-linux-x86_64-20140702/OpenCV-2.4.10-android-sdk/sdk/native/jni/include

即，它是复数，应指向以下是相对路径的位置：

#include <opencv2/core/core.hpp>

Answer 2

我通过将LOCAL_LDLIBS += -llog -ldl添加到＆＃34; Android.mk＆＃34;

解决了我的问题

LOCAL_PATH := $(call my-dir)
include $(CLEAR_VARS)
include C:/.../OpenCV-3.1.0-android-sdk/OpenCV-android-sdk/sdk/native/jni/OpenCV.mk

LOCAL_MODULE    := Testappcv
LOCAL_SRC_FILES := Testappcv.cpp
LOCAL_LDLIBS +=  -llog -ldl 

include $(BUILD_SHARED_LIBRARY)

并添加了＃34; Application.mk＆＃34;文件到jni文件夹

APP_STL := gnustl_static
APP_CPPFLAGS := -frtti -fexceptions
APP_ABI := armeabi-v7a
APP_PLATFORM := android-8

Answer 3

所以，我试图更改项目属性C / C ++ Build - ＆gt;从$ {NDKROOT} / ndk-build构建命令到$ {NDKROOT} /ndk-build.cmd，它解决了我所有的包含库错误。怪异

NDK - 包含错误

3 个答案: