Android Studio Opencv - face detection sample - opencv

Question

I'm student. I used Android Studio in new version, because I wanted to compile the face detection sample of Opencv library.
At first problem, I didn't resolve the ndk path.
Show that error:
Error:Execution failed for task
':openCVSamplefacedetection:compileDebugNdk'.
NDK not configured. Download the NDK from http://developer.android.com/tools/sdk/ndk/.Then add
ndk.dir=path/to/ndk in local.properties. (On Windows, make sure you
escape backslashes, e.g. C:\ndk rather than C:\ndk)
so I download the ndk and add the path like this.
ndk.dir=d\:\\android-ndk-r10e
Then, the new error is showing:
Error:Execution failed for task
':openCVSamplefacedetection:compileDebugNdk'.
A problem occurred starting process 'command 'd:\android-ndk-r10e\ndk-build.cmd'
Some people say that please add the sourceset.main in build.gradle, so I add the source code.
apply plugin: 'com.android.application'
android {
compileSdkVersion 22
buildToolsVersion "22.0.1"
defaultConfig {
applicationId "org.opencv.samples.facedetect"
minSdkVersion 15
targetSdkVersion 22
ndk {
moduleName "detection_based_tracker"
}
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.txt'
}
}
}
dependencies {
compile project(':openCVLibrary2410')
}
Finally built complete but my phone showed "FaceDetecter is stopped" and exit the app.
Don't you know the problem? I really don't know about Opencv's open source.

Answer 1

One possible solution to try it out with Task NdkCompile into your build.gradle file.
Also I do not think you need to add OPENCV as a dependency instead simply add JNI directories to configuration file as noted above (the jniLibs.srcDir is mapped to the proper location).
I know this question was asked 6 months ago, but I hope isn't late or others may find it useful for quick troubleshooting.
Best of luck.