java.lang.UnsatisfiedLinkError about libjniopencv_core.so and libopencv_imgproc.so

[Cupcake-iOS]

Hello,
I want to implement face recognizer and try import javacv by using gradle,

dependencies {
    compile fileTree(include: ['*.jar'], dir: 'libs')
    testCompile 'junit:junit:4.12'
    compile 'com.android.support:appcompat-v7:22.2.1'
    compile 'com.android.support:design:22.2.1'
    compile 'org.bytedeco:javacv:1.1'
}

However when I call the function createLBPHFaceRecognizer()
I always get the error message

01-22 19:35:57.633 22594-22594/? E/AndroidRuntime: FATAL EXCEPTION: main
                                                   Process: tw.com.championtek.javacvtest, PID: 22594
                                                   java.lang.UnsatisfiedLinkError: dalvik.system.PathClassLoader[DexPathList[[zip file "/data/app/tw.com.championtek.javacvtest-1/base.apk"],nativeLibraryDirectories=[/vendor/lib, /system/lib]]] couldn't find "libjniopencv_core.so"
                                                       at java.lang.Runtime.loadLibrary(Runtime.java:366)
                                                       at java.lang.System.loadLibrary(System.java:988)
                                                       at org.bytedeco.javacpp.Loader.loadLibrary(Loader.java:597)
                                                       at org.bytedeco.javacpp.Loader.load(Loader.java:438)
                                                       at org.bytedeco.javacpp.Loader.load(Loader.java:381)
                                                       at org.bytedeco.javacpp.opencv_core.<clinit>(opencv_core.java:10)
                                                       at java.lang.Class.classForName(Native Method)
                                                       at java.lang.Class.forName(Class.java:309)
                                                       at org.bytedeco.javacpp.Loader.load(Loader.java:413)
                                                       at org.bytedeco.javacpp.Loader.load(Loader.java:381)
                                                       at org.bytedeco.javacpp.opencv_face.<clinit>(opencv_face.java:13)
                                                       at tw.com.championtek.javacvtest.MainActivity.onResume(MainActivity.java:38)
                                                       at android.app.Instrumentation.callActivityOnResume(Instrumentation.java:1257)
                                                       at android.app.Activity.performResume(Activity.java:6142)
                                                       at android.app.ActivityThread.performResumeActivity(ActivityThread.java:3073)
                                                       at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:3115)
                                                       at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2446)
                                                       at android.app.ActivityThread.access$800(ActivityThread.java:162)
                                                       at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1349)
                                                       at android.os.Handler.dispatchMessage(Handler.java:102)
                                                       at android.os.Looper.loop(Looper.java:135)
                                                       at android.app.ActivityThread.main(ActivityThread.java:5431)
                                                       at java.lang.reflect.Method.invoke(Native Method)
                                                       at java.lang.reflect.Method.invoke(Method.java:372)
                                                       at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:914)
                                                       at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:707)
                                                    Caused by: java.lang.UnsatisfiedLinkError: dalvik.system.PathClassLoader[DexPathList[[zip file "/data/app/tw.com.championtek.javacvtest-1/base.apk"],nativeLibraryDirectories=[/vendor/lib, /system/lib]]] couldn't find "libopencv_imgproc.so"
                                                       at java.lang.Runtime.loadLibrary(Runtime.java:366)
                                                       at java.lang.System.loadLibrary(System.java:988)
                                                       at org.bytedeco.javacpp.Loader.loadLibrary(Loader.java:597)
                                                       at org.bytedeco.javacpp.Loader.load(Loader.java:429)
                                                       at org.bytedeco.javacpp.Loader.load(Loader.java:381) 
                                                       at org.bytedeco.javacpp.opencv_core.<clinit>(opencv_core.java:10) 
                                                       at java.lang.Class.classForName(Native Method) 
                                                       at java.lang.Class.forName(Class.java:309) 
                                                       at org.bytedeco.javacpp.Loader.load(Loader.java:413) 
                                                       at org.bytedeco.javacpp.Loader.load(Loader.java:381) 
                                                       at org.bytedeco.javacpp.opencv_face.<clinit>(opencv_face.java:13) 
                                                       at tw.com.championtek.javacvtest.MainActivity.onResume(MainActivity.java:38) 
                                                       at android.app.Instrumentation.callActivityOnResume(Instrumentation.java:1257) 
                                                       at android.app.Activity.performResume(Activity.java:6142) 
                                                       at android.app.ActivityThread.performResumeActivity(ActivityThread.java:3073) 
                                                       at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:3115) 
                                                       at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2446) 
                                                       at android.app.ActivityThread.access$800(ActivityThread.java:162) 
                                                       at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1349) 
                                                       at android.os.Handler.dispatchMessage(Handler.java:102) 
                                                       at android.os.Looper.loop(Looper.java:135) 
                                                       at android.app.ActivityThread.main(ActivityThread.java:5431) 
                                                       at java.lang.reflect.Method.invoke(Native Method) 
                                                       at java.lang.reflect.Method.invoke(Method.java:372) 
                                                       at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:914) 
                                                       at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:707) 

Anyone can help me to fix this problem?

Thanks,

Isaac

[saudet]

You're going to need to list a couple more dependencies for Gradle:
https://github.com/bytedeco/javacv/wiki/Configuring-Proguard-for-JavaCV#gradle-settings