Android gradle build error - algorithm: No such file or directory. (In opencv)

Issue

I am trying to run a sample program with opencv for image acquisition. But I got the build error.

D:\Work\Code\Practice\Android\CornerDetector\app\src\main\jni\opencv2\core\base.hpp
Error:(53, 21) algorithm: No such file or directory

Android.mk

    LOCAL_PATH:= $(call my-dir)
include $(CLEAR_VARS)
include D:\Work\Code\Addons\ZAndroid\OpenCV-android-sdk\sdk\native\jni\OpenCV.mk

    LOCAL_MODULE := mCameraSlider

    LOCAL_SRC_FILES := src/driver_android_slider.c    \
                       src/driver_android_camera.cpp  \
                       src/driver_android_display.cpp \
                       src/main.c                     \
                       src/mCameraSlider.c            \
                       src/corner/myCorners.c         \

    LOCAL_C_INCLUDES += $(LOCAL_PATH)\src\include \
                        $(LOCAL_PATH)\src\corner  \


    LOCAL_LDLIBS  +=  -llog -ldl
    include $(BUILD_SHARED_LIBRARY)

Application.mk

APP_STL := gnustl_static
APP_CPPFLAGS := -frtti -fexceptions
APP_PLATFORM :=android-9

Some drivers for android camera is using opencv2/core/core.hpp, therefore opencv2 directory is place under jni.

#include <jni.h>
#include <stdlib.h>
#include <android/log.h>
#include <opencv2/core/core.hpp>

extern JavaVM *cachedJvm;
extern jobject cachedActivityObj;
extern jclass cachedMainActivityCls;

typedef struct _CameraContext
{
    jmethodID CameraGetInputBufferID;
    jmethodID InitCameraID;    

    int Width;
    int Height;
    int Location;

    cv::Mat Temp;
    cv::Mat Repo;
} CameraContext;

When doing ndk build getting this:

I think I am doing something wrong in using opencv, maybe android.mk but not sure. Kindly help.

UPDATE:

    apply plugin: 'com.android.application'

android {
    compileSdkVersion 23
    buildToolsVersion "23.0.2"

    defaultConfig {
        applicationId "com.mohantysolutions.cornerdetector"
        minSdkVersion 15
        targetSdkVersion 23
        versionCode 1
        versionName "1.0"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    testCompile 'junit:junit:4.12'
    compile 'com.android.support:appcompat-v7:23.1.1'
    compile 'com.android.support:support-v4:23.1.1'
    compile project(':libraries:opencv')
}

Solution

Problem was I missed the configuration in gradle to include jni srcDir. Once I added the below code to gradle, everything works fine.

sourceSets.main{
    jni.srcDirs = []
    jniLibs.srcDir 'src/main/libs'
}

I hope this may prove helpful to someone.

Answered By - MKMohanty